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.

“I canceled my subscription to try another platform.”

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 3177778280

Proof data

Record hash (SHA-256)

7dd1bd101377c57691b273fdff47d9fccdcb3f9da0b094b9cea40ad3e2e9b5d3

Signature (Ed25519, base64)

TCOsXsrwt8DtX00f5cWZ+9MsJ6vb3mCer816ST02djpCClN6lCUBqIg/8QSdiMZxZt5NSpvcY6/UTgswQVfQDw==

Merkle root

9bf5e8bc71b8f6d2ce627972b9fb81fedd792f7b02f32eb60fb8da440673ef59

Merkle path

["7dd1ca97294426622282d823a734dee6beade35f417aea40753ea6426f2263ae","c4abdb675ee25ffb2d4e81fab0b7d0f7d11138027c7d564309472f981f45c4cf","ab9abced192df9e567e3bfd73f12cf20d229c3d83ee17729fcf3c7eaed6e68f0","0eb41af2f0773dc74fd84cbdb64929e434a1c707ce98c0f576b681d3c0e507af","5db5bceba177dc43e8a0ad871effdf7eb5b928e4ae997bc3ba139bd381fcdcb5","31b4390e4829e6e04c7e93d6c97af3518878538d90d6e3225c545f2e63b3ffb7","0a91aa0958bca2239d738b8fe85665c5fd0e3c024ad6a3dcab0264ff4a728030","c5905f12d59c3c012d8c384e90ca16f376b999f7e5a817d514611d35ad13fc35","3bf212a3c763051260bfb7f8cd239c99ff8e07a097252e753dab74e3610ec71a","091a7193a79ea566012cfae2367f1585adba11f4cde89b23d34a689db2d334de","992d22df02a2342802900c6dbe84e6f1af561b269842a209e5ade1de56665d3d","41463e83ceeb46951ec6c8ad9bc917aa51baed7fe823c51e10fb78e1729cda44","aa0e555b7739d6e04cbb925a0d34787576df4ae9ad90f53f6416ac2f935a93ac","e3d4f74560ebefc008080794ff80cf2bbc3851f4365eda6b2fbf79bf3ad31493","1fa7003be7676d7952d939a45bc47245b2ced828dca06428675c885e312c802e"]

Anchored

2026-10-10

Public log entry

search.sigstore.dev, log index 3177778280 · entry 108e9186e8c5677a59b6…

Expected log hash

6b6bda8efa0d998f344024bc1a70908bd21604d8857c81e0a6e6c5b1de7aa565 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":"v1791603230890","kind":"published-quote","locale":"en","page":"brand:spotify","quote":"I canceled my subscription to try another platform.","rating":5,"review_date":"2026-09-16","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.spotify.music","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 (9bf5e8bc71b8…), 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.