Quote verification

This proves the quote below is recorded by Citatio exactly as displayed and has not been altered since it was committed and anchored. It documents Citatio's crawl observation; it does not imply endorsement by the source platform. The quote links to the original review.

“Used it in 3 different location in UK and was accurate to approx 1/2 hour before weather change”

Checks (re-run on this request)

• ✓ Signature — Ed25519 signature over the record hash, verified against the public key at /.well-known/citatio-signing.json
• ✓ Merkle inclusion — Leaf recomputed through the sibling path to the anchored root
• ✓ Public transparency log — Sigstore Rekor log index 2514341362

Proof data

Record hash (SHA-256)

70a47a6d2d6611c99be5a6c4d69e2d941f4c55755b42489c892e337dccb4538e

Signature (Ed25519, base64)

NAnlTSes/1EgrZhkpo6sWRPkERoSm7krEmmS0vNZGiscc8Jf5gpSH4i59Av9ec4OyZEjn+bAVo9KKLx04FUfBw==

Merkle root

2cd516e344e4be63e12361494ae610d89d15708131c24034ae0c7b134b8bcc53

Merkle path

["70a2332560e8f7e9148ad926c49350e26ce4a453cc770bc514032f3a9e53789a","4eb25eb76e3273366ce439c27fea79d574717bb67efb5270a8f3be515e76ac2f","e43128fbfea5c08d3ad35e7aee1829f75a1ae4c667a16be8f48cc4f096c39913","fbf59159f6a5b3b32778de9dd59b46590082a596d05628a764b69b7645dc5063","c1ab92ca2bdc8f702e10cb6325dcc09f299a78c38891a22470ca93a54cea5718","248b5473484d5019daf6ad7eb7cf99f253632e16133e2249d8a99bd8c69faaf6","4937627afc0498ba1db25a09ea294e3257fef379376e0944b37dc1754fb59451","d6009515c54cb1244b1648476b103e63e7e9c91a51d576d54c01105be88ce0aa","caf6c7250e47a59103c51ab99d2fc822f8fc366e9cbce42d82642b4ee27bf733","da2b670649cc4d47ef668a2fc1b53b88a78470bfab94e2e96b4759f22085df8f","865c287294b22314b0f3f2c7f0efc8bad2cb4f7b01b996a9de5dd524bb2e033f","796cf9ea108b9a9048baa6f78f1315b449d5173aca6114b571a48a18d03a2371","1ea599b4152d264cd8b482e9bcc303e2f6987750c7c2b5a87cca39f2b78ee024","54ec8fe35b61032acdd3a795b276aa22207de669eab4043c431a0246c2258612","22334ce08b4f33f031252a9b7a089423436312a37092b6e742f7471c7ed075e3"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514341362 · entry 108e9186e8c5677a67a1…

Expected log hash

81a850cd5c32c6b6ee86a2774571659cf829f205adaa17a6b9e9a6f5bef7642d The log entry's spec.data.hash.value must equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm.

Canonical record

{"dataset_version":"v1787126744998","kind":"published-quote","locale":"en","page":"theme:meteoblue/service/en","quote":"Used it in 3 different location in UK and was accurate to approx 1/2 hour before weather change","rating":4,"review_date":"2025-06-13","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.meteoblue.droid","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (2cd516e344e4…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. Locally, without any Citatio infrastructure: SHA-256 the canonical record (must equal the record hash), verify the Ed25519 signature against the public key, and fold the hash through the Merkle path (sorted-pair SHA-256) to reach the anchored root.