CSI reproducibility record.

Reproduce the 2015 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 2015 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, 2015

Provisional

90.42

CSI value for 2015.

-1.18

Change from the previous period.

90.15%

Confidence score.

Methodology csi-v1.1.0 · epoch 16 · 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:abec21027e35005ed5aebed92b8462235752d41001c80470895b6bd7475598ee

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:abec21027e35005ed5aebed92b8462235752d41001c80470895b6bd7475598ee
Source bundle hash (current material): sha256:4654aa8b14d34cc2b79bbaa5e922cd6e9f814b707e5f68bc414d108889a5fd68
Snapshot hash (anchored block): sha256:e21884f33885fe4b0a20038f3706a5fbd679cb986855f1e8d90d30f50ce6ddeb
Snapshot hash (current material): sha256:b93b6fc4b76c3bf25ab57386fd225242491c54a574a96d2e771f939d7a6b897c

Sub-index composition

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

The eight sub-index snapshot hashes for 2015, in weight order, are recorded in the proof block:

Member 1: sha256:229c9ca1fb324cadda8ab30a32505fe73ccad97b6577ac522f90ac51c12c4e0b
Member 2: sha256:34f2542f2c474533e52997c910021380480fd9b38264be659511d212e76be165
Member 3: sha256:47d796ba520198f6de871c4edfd7c5ba72e5d587f84e819adeca5609945c6c48
Member 4: sha256:ff56247f6036272dfac879f2435f2e6aae859811154b92e64456a8d15707c3f6
Member 5: sha256:9dd060a6814b1e96b3f9f60e5c9a90bb9ff03bcf720ec5c8490f8e9b72100d7f
Member 6: sha256:6db563fdec4a8634b7ac4d6ce8d1685866160b60120160784331da6bb6d9c624
Member 7: sha256:8c66a9e6cd208691ce2b7878e27bad7a3b84e23756293832dd93d1c6ccd88847
Member 8: sha256:cab650b79b8e528ba960471de466ff646d538464cdfe5cf8ff6c785301a6d517

Result hashes and expected value

Snapshot hash (anchored block; current material above): sha256:e21884f33885fe4b0a20038f3706a5fbd679cb986855f1e8d90d30f50ce6ddeb
Composition hash: sha256:3669a2ea60cfee44df3aea8c725728ce13ae76d81ad7edfd8fb0faa4ffab4ad7
Metric root: sha256:67282e1febf937f1fffa332a00c257833af8f3a259647d0bc0646b7b65495c4c
Expected CSI (E8): Published for the latest snapshot only.
Previous snapshot hash: sha256:59c8e6d42d6017ed894f9fa8fb3290a633d27be775620c5db50f33364219af95

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 2015 Expected snapshot hash sha256:b93b6fc4b76c3bf25ab57386fd225242491c54a574a96d2e771f939d7a6b897c; proof block sha256:39f5d57430ab6ce47fc922994471166dc50a2770e661907dd5324079a40d73b2 (append sequence 15).

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

In plain English

CSI 2015 snapshot (provisional).

Free-public composite CSI for WORLD 2015: 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 2015 proof block.