CSI reproducibility record.

Reproduce the 2018 CSI snapshot.

The methodology version, the configuration, baseline and source-rights hashes, the eight sub-index contributions, the expected CSI value and the exact commands to reproduce the reading on a second machine.

Back to reproducibility.View the 2018 proof block.

This record lists the inputs that fix one published CSI snapshot and the replay steps to verify them. Every value is derived from declared candidate inputs, carries an explicit data-state label and stays provisional until authenticated production lineage and the benchmark trusted gate pass. A missing or fail-closed artefact renders as an explicit unavailable state, never a fabricated value.

Reproducibility record, 2018

Provisional

86.53

CSI value for 2018.

-1.13

Change from the previous period.

90.15%

Confidence score.

Methodology csi-v1.1.0 · epoch 19 · signer quorum 0/0. The public data-state is shown above; the engine status is recorded inside the proof for reproducibility and is not a certification.

Inputs that fix this snapshot

Methodology hash: sha256:4eeec13bdb90c15fffc0a0ae73cbc8e42b771dc9b2e79ae6efb4de3109ef904d
Configuration hash: sha256:4eeec13bdb90c15fffc0a0ae73cbc8e42b771dc9b2e79ae6efb4de3109ef904d
Baseline hash: sha256:59a22a35cf81109a2d774f1427be9c356f101625bbad1131495b4548c2979a24
Source registry hash: sha256:782a397bcc94d0dfbab577fe06c2e0daaed9a1852c7412177bdeaaf77362626a
Source bundle hash: sha256:f2ee49dab83436b43cb82b23935fe5b51fb4cc5ee2c3d4b58ca612fb9c40e18a

Per-source release identifiers, licence states and parser versions are summarised by the source registry hash and the source bundle hash above. The exact material behind each hash (methodology, baselines, source registry, source bundle, metric values, contributions, confidences and snapshot) is published per period in the verification kit. For this period the anchored proof block certifies an earlier revision of that material: the methodology, baseline, source-registry, metric-values, contribution and confidence hashes re-hash to the values shown here, but the block's source-bundle hash and snapshot hash are the earlier revision's, because a later re-certification changed a hashed input (the candidate label inside the replay evidence) without moving this period's CSI E8, and the append-only tail rule appends a revision block only when the certified value moves. The current material is transitively anchored via block #30, whose hashed previous snapshot hash reaches this period through the material snapshot chain.

Source bundle hash (anchored block): sha256:f2ee49dab83436b43cb82b23935fe5b51fb4cc5ee2c3d4b58ca612fb9c40e18a
Source bundle hash (current material): sha256:6b439a0122bf74b2b86ed5aa3ff62ccbc2f3c2533f66ca4032a64b9e0a0f689a
Snapshot hash (anchored block): sha256:86353fd771280636acc503c43575c2caec86a20d9da3a6da72027dd71924ae6b
Snapshot hash (current material): sha256:30082c053c0b711b71cf35bac65a6338be34ae0a79ce85047db33f0c960af83e

Sub-index composition

Per-member contributions are published for the latest snapshot only.

The eight sub-index snapshot hashes for 2018, in weight order, are recorded in the proof block:

Member 1: sha256:32c527527a461e345a4ba53f5e85299e88ca6091ffc3f9a0a3567c789b24604b
Member 2: sha256:4b5bda2e90c964648c350cebb28294a9dd730394518be6298e76d4d6cdb4dfe5
Member 3: sha256:7fe20bed608636d4e4308b398bbcb03423154899df34023e21775d18354841a0
Member 4: sha256:ba131b90223b48c4773fccd232b7df28ee05f0c57d58707f1e1321996b6283f1
Member 5: sha256:27bb957b5c0fd8a2630c0182af45105bd5619262573aa492096fed367e7d0594
Member 6: sha256:9f5f96c376a69868802365ed4d67ed6f0916b6a43a74049f46ab4ff1144e51a4
Member 7: sha256:ae42e3709e4e533afdb0a50cfed100a8f39b1783593e818936d1d1d3d3b09977
Member 8: sha256:7a8499ffa448c4711fc58f1bd36fcc38e81d27358047830e9cbe283b05b2993b

Result hashes and expected value

Snapshot hash (anchored block; current material above): sha256:86353fd771280636acc503c43575c2caec86a20d9da3a6da72027dd71924ae6b
Composition hash: sha256:ef029c384486eb523914a3540edbec2937f24c28cb3540653caac103fa9e37ac
Metric root: sha256:ddab2ef54245c6dbf163ae47d6b847250c76f8de62a926726b49301484d388c3
Expected CSI (E8): Published for the latest snapshot only.
Previous snapshot hash: sha256:ffb74a35782464a94fd82bcfe18c39d75296f4be74c2c5cdfbc66b8ca3f5a20c

Reproduce this snapshot

The reproducibility bar is that a second machine, given the same methodology, source registry, immutable baselines and source bundle, produces the same snapshot and bundle hash. The steps below come from the public verification kit and regenerate the served output; they are shown as text and are never executed by this page. Recomputing the hashes needs only the kit; recomputing the headline from raw observations needs the CSI engine, as the steps show.

The material files are the engine's exact hash inputs. A full replay re-runs the upt-csi engine over the committed collected sources with the exporter and must reproduce every material file and hash byte-for-byte (the runner requires two scratch runs to be byte-identical before publishing).

git clones of unpenned-token/upt-csi and unpenned-token/upt-web side by side
Python 3.11+ with the upt-csi package installed (pip install -e upt-csi)
no network: every input is committed (collected CSVs, splice artefacts, candidate evidence)

1. Reproduce the publication to a scratch directory: cd upt-web && python scripts/export-real-csi-artefacts-v110.py --out ../scratch fail-closed: the certified constants, the candidate cross-check, the parity gate and every hash must reproduce; nothing is written into public/
2. Compare the scratch material with the served kit: diff -r ../scratch/data/csi/verify verify the material files and index.json must be byte-identical
3. Run the public verifier against the scratch tree: python scripts/verify_kit.py --base ../scratch/data/csi the same checks the kit runs against the served tree
4. Run the exporter's own test suite: cd upt-web && python scripts/test-export-v110-mode.py constants, lineage, ledger and kit tests
5. Recompute this snapshot's published hashes from the kit material.: python verify_kit.py --base https://unpenned.org/data/csi/ --period 2018 Expected snapshot hash sha256:30082c053c0b711b71cf35bac65a6338be34ae0a79ce85047db33f0c960af83e; proof block sha256:9042447b67472e7174ea2a1f4d526bfd350fa404cda1a3a43973e9003e6e687f (append sequence 18).

Open the verification kit for the file list, sha256 digests, the canonicalisation rule and the verifier usage.

In plain English

CSI 2018 snapshot (provisional).

Free-public composite CSI for WORLD 2018: the weighted composition of the eight first-class sub-indexes. Illustrative and provisional until a reproducible production pipeline certifies a release.

The summary above is the block's own hashed text, written when the block was certified and preserved verbatim; the current publication state is the data-state label at the top of this record (derived from declared candidate inputs and provisional: certified on the candidate track, not yet benchmark-trusted).

View the 2018 proof block.