sequence 2,276

delphi.consensus.snapshot

Appended 1 Oct 2026, 05:32 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.

← 2275 2277 →

The entry

entry_hashd6e4bcfd3bceREAL_UTC

sequence_number: 2276
entry_type: delphi.consensus.snapshot
entity_type: forecast_question
entity_id: 3b91df80-00fc-4a4b-b86e-3310edcb9332
logged_at: 2026-10-01T05:32:02.754542+00:00
previous_hash: 1835102cccaa5dc09e0b69d4f24c9fabf7a88e0952386d2f1fb31cfa47ce6d8c
payload_hash: 7546616fb86300f1343c51762babd36ce8329e920c0749c067dbe3215a26bfd0
entry_hash: d6e4bcfd3bce948299e079bfb62121c81a3d0b57fdaa49f9b81bfef590fe8a4b

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

Payload

{
  "timebase": {
    "clock": "REAL_UTC"
  },
  "computed_at": "2026-10-01T05:32:02.696534Z",
  "populations": [
    "DELPHI_AGENT",
    "EXTERNAL_AGENT",
    "HUMAN",
    "NETWORK",
    "VERIFIED_EXPERT"
  ],
  "question_id": "3b91df80-00fc-4a4b-b86e-3310edcb9332",
  "series_commitment": "a75b7a78fdf5456b9773a1f47a864802fb8bd322ade5db163aa8a821e53e71b2",
  "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: 9e7b6ce84a2e2c1511c4f3b6dc823bc55cc6c84e7e8da26c2ce0a4f211a9a57f
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: 2276
tree_size: 2389
leaf_hash: 829ab05645f3f2f683c914465bc03b7a23083e01c705f7ce2c7ae4aaf5e695b8
audit_path (10): 0: 2067d9e01ad84260e9ed8f98fe8989bedda91f12ea2c25caa7872252d34f6aec1: 390df4a0f6b44fef2ee46c23cb2a67ecc9536332273f6196b5cc5cb4da933b572: 9f47046bbc5697bc4d2b2d956eac2bb5b9e206111548a99c17545ccfef241a453: e8a87685ffc0c045844f48048e15e73d87bc3b0e8f22683bd6dc45e7883291754: 17915314b26d6769039107000ee4044a98d3c61a06eb7fa7121566ca8a4107f35: 453a26486f28dbe1e75e2f01f0d5e9fd3fe713113fe66b00eb5763b442ca537c6: cbc4db984571c13242d6f4b551c8d58b2ac60b14ae1df2945b6a2428d447c0bb7: 126596474757e47b31a2f4c9d89412108fada5bcdc7a19a9a1de3d4012be0b578: 03c349147789bfb063beb6c472906eef54792e9077566daa1ada925b4ce9b91b9: c2a61f9c340fe90eca96b6ee3ce7a915f3c652848ec632eaa3e641ee4f30439d
root_hash: 4f7f1a3085d540e3b69ac022c801823029c04ad350f74966858670c2038ea3cd

The earliest published head that covers this entry

tree_size: 2285
signed at: 1 Oct 2026, 05:32 UTC
key_id: 042b55492fabadcb8ffb9fe4e9b6a3e8
root_hash: 17330c6327e6363b8237bd4a68d5ee420a6d0f745c8d8bab0a90305d6bccba50
signature: TlvQ+bw63yzvEDWcOD5MbBx7k0BSImf5PEym3jf4RkUEAcxz9SLwuoK5KlbtkboyqggWJf91cbdWSuZ+NP3aCQ==

sourceGET /api/transparency/proof/inclusion· leaf_hash, audit_path, root_hash· audit-path nodes: 10