sequence 33

delphi.consensus.snapshot

Appended 15 Aug 2026, 15:53 UTC. Its place in the chain is fixed by the hash of the entry before it; what follows is whether that place is covered by a signature.

← 32 34 →

The entry

entry_hashf9424d4774c1REAL_UTC

sequence_number: 33
entry_type: delphi.consensus.snapshot
entity_type: forecast_question
entity_id: 3707c33d-0301-4c72-8c13-ee685e8a0a88
logged_at: 2026-08-15T15:53:36.376308+00:00
previous_hash: 45d9eda6f9e45bf40cf6090dcfa7aa284f5dab6fb15c82faf01cd48eaef6a53e
payload_hash: 1193459d47efd8a6c9ac3110bfca14afefdc9773c0f53275662b9e0cc82fe512
entry_hash: f9424d4774c10347afdd1c98d28f1ef3c6afd82ddd912e1ec0c2efab05518c70

sourceGET /api/transparency/entries/{n}· one entry, as served to this reader· payload served

Payload

{
  "timebase": {
    "clock": "REAL_UTC"
  },
  "computed_at": "2026-08-15T15:53:36.370509Z",
  "populations": [
    "DELPHI_AGENT",
    "EXTERNAL_AGENT",
    "HUMAN",
    "NETWORK",
    "VERIFIED_EXPERT"
  ],
  "question_id": "3707c33d-0301-4c72-8c13-ee685e8a0a88",
  "series_commitment": "125c918ef4fe9d3048abf2a78f996f6be08b6021c6b4037e909a1e9938568f8a",
  "commitment_version": "v2"
}

Shown indented so it can be read. The hash is taken over the canonical form of the same object — keys sorted by code point, no insignificant whitespace, UTF-8 rather than escaped ASCII, timestamps RFC 3339 in UTC to microseconds, decimals as their plain string form. The check below re-encodes the object canonically before hashing it, which is why an indented display cannot make it pass or fail.

Which digest recipe applies

migration 0021 salted this digest · both versions coexist in one append-only log

commitment_versionv2stated in the payload

The entry names its own version, so a reader can pick the right recipe without knowing when the salt was introduced.

sha256(canonical_json({question_id, computed_at, salt, readings})), where readings is the batch's populations sorted by population, each carrying exactly {population, method, method_version, sample_size, distinct_operator_count, value}

salt: 65f1a87dfb4b42393e37bb88b691323b0881e8804ab390dd177cda513776bcbb
readings: 5
recompute: sha256(canonical_json({question_id, computed_at, salt, readings})) must equal series_commitment in the payload above. Take question_id and computed_at from that payload verbatim, sort readings by population, and give each reading exactly the six keys served here — the values carry their stored precision and are hashed as the decimal strings they appear as

Verify it here

computed in your browser, not on the server

Recomputing the hashes in this browser… If this sentence stays, this browser has no Web Crypto and nothing here has been verified locally.

The proof, as served

leaf_index: 33
tree_size: 2285
leaf_hash: 68d05cc180d6b935e83d8766592b320d1545f9fb7da84856ea464c62b9cc3514
audit_path (12): 0: 7e5cd9da0f7214d0afc0d3ddb66937fc2ae6aa529d1f8d80d9b6cf8db521c2091: 469ed004e6fcd7d01b53b9bb1df8d886ebeb1894b0794b48826e14dec0ff0c222: a8f494186f033c69dd6178c0d51ad1f52e2f7902e8f7078f60a4b76eaf5a65e03: e0fd32a6c37370ab40664c7f00dd10aa97f83f28e9593d5626d8ca57a96fe3ca4: 44572e1f9d85cea0b2eeaa0aa227d6fb80c1e5448efb5228f587d667c12052dd5: 0dec549ee6527dafc0e801068f2df8c4eef8fcb9972397c6eb58217673bbfe9c6: 432b3bec17cc8d9bd118f5d2d11fc56d0578ec1940af60be2192f2f1b8d43dc67: 925d039cfaa2795efce751d71988395a9d8544d4910a71d82c761e6c8e51ba2e8: 6e5b02022079dc614c5f74ca1c784cf9700d832e05c2eec11f0ad0a37376b46d9: 2fb679aab258481705c982e553094522ea7bb93361711a8387ebf359e8c3e43110: 86666e2cb262024eb1c2584c671184dc2fb8b8d41a345bde94ca518e487ac23911: a95d574e00e9fefbc454b084e8cb19edc83831071366b2d8dc1af2f7114b646f
root_hash: 17330c6327e6363b8237bd4a68d5ee420a6d0f745c8d8bab0a90305d6bccba50

The earliest published head that covers this entry

tree_size: 374
signed at: 19 Aug 2026, 20:25 UTC
key_id: 042b55492fabadcb8ffb9fe4e9b6a3e8
root_hash: ecf4adc708ae542a0339e03fd4cc181cf49d0329768627c5345c915a58bd813a
signature: 3yL+JZfMhiQ6rm5rCTTg7iT+or04nCGVcQ08ILMw/d7eqvR4Jid7cEg2rQU5fCX7llStjVkTC9jVZjfGQvtMAg==

sourceGET /api/transparency/proof/inclusion· leaf_hash, audit_path, root_hash· audit-path nodes: 12