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Methodology · append-only record

What changed, when, and why it matters

Method changes and material data revisions remain visible.

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Append-only KCP method and revision log9 Sep 2026

Corrections remain visible; a newer method does not erase its predecessor.

On this page8 sections
  1. 01USD/TZS · 2026-08-20
  2. 02USD/TZS · 2026-08-19
  3. 03USD/TZS · 2026-08-19
  4. 04USD/TZS · 2026-08-18
  5. 05USD/TZS · 2026-08-17
  6. 06USD/TZS · 2026-08-17
  7. 07USD/TZS · 2026-08-16
  8. 08Mainland Tanzania headline inflation · 2024-04
Methodology · public recordAppend-only log

2026-08-20 · data-revision

USD/TZS · 2026-08-20

Observation revision 1 recorded as provisional. The earlier value remains in the append-only record.

Status: provisional · Affects: fx-usd-tzs-bot-mean

Open affected object →

2026-08-20 · data-revision

USD/TZS · 2026-08-19

Observation revision 2 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: fx-usd-tzs-bot-mean

Open affected object →

2026-08-19 · data-revision

USD/TZS · 2026-08-19

Observation revision 1 recorded as provisional. The earlier value remains in the append-only record.

Status: provisional · Affects: fx-usd-tzs-bot-mean

Open affected object →

2026-08-19 · data-revision

USD/TZS · 2026-08-18

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: fx-usd-tzs-bot-mean

Open affected object →

2026-08-18 · data-revision

USD/TZS · 2026-08-17

Observation revision 2 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: fx-usd-tzs-bot-mean

Open affected object →

2026-08-17 · data-revision

USD/TZS · 2026-08-17

Observation revision 1 recorded as provisional. The earlier value remains in the append-only record.

Status: provisional · Affects: fx-usd-tzs-bot-mean

Open affected object →

2026-08-17 · data-revision

USD/TZS · 2026-08-16

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: fx-usd-tzs-bot-mean

Open affected object →

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2024-04

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2024-03

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2024-03

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2024-02

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2024-02

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2024-01

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2024-01

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2023-12

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2023-12

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2023-11

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2023-11

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2023-10

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2023-10

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2023-09

Observation revision 2 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2023-09

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2023-08

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2023-08

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2023-07

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2023-07

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2023-06

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2023-06

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2023-05

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2023-05

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2023-03

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2023-03

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2023-02

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2023-02

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2023-01

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2023-01

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2022-12

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2022-12

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2022-11

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2022-11

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2022-10

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2022-10

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2022-09

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2022-09

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2022-08

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2022-08

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2022-07

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2022-07

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2022-06

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2022-06

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2022-05

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2022-05

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2022-04

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2022-04

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2022-03

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2022-03

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2022-02

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2022-02

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2022-01

Observation revision 2 recorded as corrected. The earlier value remains in the append-only record.

Status: corrected · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-17 · data-revision

Mainland Tanzania headline inflation · 2022-01

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-mainland-headline-inflation

No standalone public series page is published for this governed object.

2026-08-16 · data-revision

USD/TZS · 2026-08-15

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: fx-usd-tzs-bot-mean

Open affected object →

2026-08-15 · data-revision

USD/TZS · 2026-08-14

Observation revision 2 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: fx-usd-tzs-bot-mean

Open affected object →

2026-08-14 · data-revision

USD/TZS · 2026-08-14

Observation revision 1 recorded as provisional. The earlier value remains in the append-only record.

Status: provisional · Affects: fx-usd-tzs-bot-mean

Open affected object →

2026-08-14 · data-revision

USD/TZS · 2026-08-13

Observation revision 2 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: fx-usd-tzs-bot-mean

Open affected object →

2026-08-13 · data-revision

USD/TZS · 2026-08-13

Observation revision 1 recorded as provisional. The earlier value remains in the append-only record.

Status: provisional · Affects: fx-usd-tzs-bot-mean

Open affected object →

2026-08-13 · data-revision

USD/TZS · 2026-08-12

Observation revision 1 recorded as revised. The earlier value remains in the append-only record.

Status: revised · Affects: fx-usd-tzs-bot-mean

Open affected object →

2026-08-07 · data-revision

Gross official foreign-exchange reserves · 2026-05

Observation revision 3 recorded as revised. The earlier value remains in the append-only record.

Status: revised · Affects: bot-mer-gross-official-reserves

No standalone public series page is published for this governed object.

2026-08-07 · data-revision

Gross official foreign-exchange reserves · 2026-01

Observation revision 1 recorded as revised. The earlier value remains in the append-only record.

Status: revised · Affects: bot-mer-gross-official-reserves

No standalone public series page is published for this governed object.

2026-08-07 · data-revision

Gross official foreign-exchange reserves · 2024-04

Observation revision 1 recorded as revised. The earlier value remains in the append-only record.

Status: revised · Affects: bot-mer-gross-official-reserves

No standalone public series page is published for this governed object.

2026-08-07 · data-revision

Exports of goods and services annual growth · 2026-05

Observation revision 3 recorded as revised. The earlier value remains in the append-only record.

Status: revised · Affects: bot-mer-exports-growth

No standalone public series page is published for this governed object.

2026-08-07 · data-revision

Exports of goods and services annual growth · 2026-01

Observation revision 1 recorded as revised. The earlier value remains in the append-only record.

Status: revised · Affects: bot-mer-exports-growth

No standalone public series page is published for this governed object.

2026-08-07 · data-revision

Exports of goods and services annual growth · 2024-04

Observation revision 1 recorded as revised. The earlier value remains in the append-only record.

Status: revised · Affects: bot-mer-exports-growth

No standalone public series page is published for this governed object.

2026-08-07 · data-revision

Exports of goods and services · 2026-05

Observation revision 3 recorded as revised. The earlier value remains in the append-only record.

Status: revised · Affects: bot-mer-exports-goods-services

No standalone public series page is published for this governed object.

2026-08-07 · data-revision

Exports of goods and services · 2026-01

Observation revision 1 recorded as revised. The earlier value remains in the append-only record.

Status: revised · Affects: bot-mer-exports-goods-services

No standalone public series page is published for this governed object.

2026-08-07 · data-revision

Exports of goods and services · 2024-04

Observation revision 1 recorded as revised. The earlier value remains in the append-only record.

Status: revised · Affects: bot-mer-exports-goods-services

No standalone public series page is published for this governed object.

2026-08-07 · data-revision

Exports of goods and services · 2023-01

Observation revision 1 recorded as revised. The earlier value remains in the append-only record.

Status: revised · Affects: bot-mer-exports-goods-services

No standalone public series page is published for this governed object.

2026-08-05 · data-revision

Gross official foreign-exchange reserves · 2026-05

Observation revision 2 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-gross-official-reserves

No standalone public series page is published for this governed object.

2026-08-05 · data-revision

Exports of goods and services annual growth · 2026-05

Observation revision 2 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-exports-growth

No standalone public series page is published for this governed object.

2026-08-05 · data-revision

Exports of goods and services · 2026-05

Observation revision 2 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-exports-goods-services

No standalone public series page is published for this governed object.

2026-08-03 · data-revision

Gross official foreign-exchange reserves · 2026-05

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-gross-official-reserves

No standalone public series page is published for this governed object.

2026-08-03 · data-revision

Exports of goods and services annual growth · 2026-05

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-exports-growth

No standalone public series page is published for this governed object.

2026-08-03 · data-revision

Exports of goods and services · 2026-05

Observation revision 1 recorded as final. The earlier value remains in the append-only record.

Status: final · Affects: bot-mer-exports-goods-services

No standalone public series page is published for this governed object.

2026-07-19 · methodology

BoT current-position completeness and cadence

The BoT homepage snapshot now advances only when all five declared indicators parse after bounded render retries. A partial dashboard response retains the prior verified snapshot, and retrieval freshness follows trading days.

Status: revised · Affects: bot-current-position

Open affected object →

2026-07-17 · methodology

KCP Visual Data System v1.2

Added exact-view URLs, first-class range and comparison state, deterministic versioned citations, metadata and data packages, rights-aware CSV/SVG/PNG export, documentary breaks, coverage/vintage/revision treatments and participatory evidence checks.

Status: revised · Affects: all governed charts · regional maps · macro transmission map · visual investigations

Open affected object →

2026-07-17 · methodology

KCP Visual Data System v1.1

Ordered axes now preserve source spacing; annotations render on the evidence; multi-series charts add non-colour distinction and direct labels; signed heatmaps retain a visible zero-direction grammar.

Status: revised · Affects: all governed charts

Open affected object →

2026-07-17 · methodology

KCP Visual Data System v1

Charts become inspectable research objects with a question, exact table, source, citation, share state and rights-aware export.

Status: introduced · Affects: ETF · government securities · foreign exchange

Open affected object →

2026-07-17 · schema

Series contract 2.1

Added annotations, breaks, transformations, comparators and reuse rights without changing append-only observation identity.

Status: introduced · Affects: canonical series

Open affected object →

2026-07-17 · methodology

ETF premium and discount vintage rule

Historical ETF gaps use exact same-date NAV and DSE close observations. Missing NAV dates are never carried forward.

Status: clarified · Affects: IEACLC-ETF · VERTEX-ETF

Open affected object →

View the machine-readable log →

Continue with the evidence

Move from this record to the live public system.

Public facts remain open. Member access begins with reusable decision support.