sequence 2,297

delphi.consensus.snapshot

Appended 2 Oct 2026, 05:31 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.

← 2296 2298 →

The entry

entry_hash98bafb6c18b6REAL_UTC

sequence_number: 2297
entry_type: delphi.consensus.snapshot
entity_type: forecast_question
entity_id: 4bfc7aa0-f12f-479c-ba06-d8e4cebfe625
logged_at: 2026-10-02T05:31:30.683494+00:00
previous_hash: c90353c460c384fd128a22189f6ba33c75037b9c90531617b8fa8b10bc157941
payload_hash: 944e46bbd93e2ea643d9656d2109fa95014b6f918ed9da638423e9c23a4cc30f
entry_hash: 98bafb6c18b60814c3c5b08281ce05fa1e92a32b3298463371ea17186f72686b

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

Payload

{
  "timebase": {
    "clock": "REAL_UTC"
  },
  "computed_at": "2026-10-02T05:31:30.677320Z",
  "populations": [
    "DELPHI_AGENT",
    "EXTERNAL_AGENT",
    "HUMAN",
    "NETWORK",
    "VERIFIED_EXPERT"
  ],
  "question_id": "4bfc7aa0-f12f-479c-ba06-d8e4cebfe625",
  "series_commitment": "6776551c2787ce95ceb30ba1c321f91c722d63c6115ad9f3df38da6665053dd6",
  "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: 7730ec2d244bcfeb051aa904354271dc81dfd251decb4b875400342512110e89
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: 2297
tree_size: 2479
leaf_hash: 1584c85b8c2a9248f5633cbd1d692515b310b89bbe8d223fadac25163047cf1f
audit_path (10): 0: 171f3addf0a8c58654bffac79cfcacbb711623406b0e806b4020ae1bb2b122eb1: 687357d75748708648639e689c8806987932dcc29de08775127a009bfbfe23d22: 76b5915f856c519d46a8cbe892b50a47986862cacde062904ed0413e9dab9ff33: 821975498b70a458978b1728f99394b548b3d496bb3484413e2074cc663cece14: 56269504fdfcf4e0dc0a82cf9e12acaf348018dfa924c5db971bbf8af75594fb5: 453a26486f28dbe1e75e2f01f0d5e9fd3fe713113fe66b00eb5763b442ca537c6: cbc4db984571c13242d6f4b551c8d58b2ac60b14ae1df2945b6a2428d447c0bb7: 126596474757e47b31a2f4c9d89412108fada5bcdc7a19a9a1de3d4012be0b578: fc41f233aac25cd7d868667ffe62e2d6bc79ebfa41e20ba3937ba4144f68af369: c2a61f9c340fe90eca96b6ee3ce7a915f3c652848ec632eaa3e641ee4f30439d
root_hash: 2135d33fc3b42de9408df8505e145fcd175142e943af391ea41c56bc99a1e5e2

The earliest published head that covers this entry

tree_size: 2305
signed at: 2 Oct 2026, 05:31 UTC
key_id: 042b55492fabadcb8ffb9fe4e9b6a3e8
root_hash: 9259657b60d7c54c7f061a7a621bf2f8747cab0885ee335ac1ed3b6657c9740d
signature: WfaSA8uSPhU8mvAT09WSYyaV+8AjW2OH2C29VedwxnNkQky7NRQ2w/7a45+O74SQ2CV2uNogXj7mAjlPE7C7Cg==

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