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.

“very usefull in every journey and every session of gym + study”

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 3240367269

Proof data

Record hash (SHA-256)

3db32c49e7605bb3ed7df8326af9463329c55dbc99fd1bce2745e0a2e8f93e33

Signature (Ed25519, base64)

sHSUajFfVXoQYce2b2NIfOcTTCEr4qSV/EptAjuNaiIZOg7u/vxOSrozDKobqIFe+lE1Zr0LGGwz7aMruMMSDw==

Merkle root

1da6cf8d96c8876e66e82e9bea7529c76d7e25eda1c07550505caa1baa49c4d1

Merkle path

["3dba3eb1149e25f15059323168ab13b3167dbb5113060f65f1d005ec914e04ed","e0a43b5161188564ab967b3626b429b7452144a1536c2740c6190366d7bbd2d7","d60544c571822b86616d238e3aa29ce3f66ef8d8496b880f672954cd50a09549","46b6c8470ce25d7370c0c2c3a707cbd66da9c5c5c618b79ef4f7a116879484ef","dd2f38b8fce6f51abb3e1f2a06357624f240f291f609875e281368d1c3283f8b","fd68c66505f7f7988554815b0dd7e4021037d1505d47565e662408745a20e1f2","a065492d8d64660f98a1a8b4f474bf2f6d858dae1b6a589bbc8e35954473f7ee","a43057d369c36c765d1b9c8d76a78ba876eb51739fb0740aa5b7ea093bdf783d","4a84e8198e9f1b52a017096e54b9b47e1b9a62420f2bdb278be3101feba760ad","10220bd977867961d6aeca8e82bf8dbb5c5e1ff90038abe6a1817aa962e566f9","dfc09c55fdd73fd9afc70e4a018b52e543445810cca0a8f4cc14655c40e09b22","994e6d7ea103100577c4cab0d6712d9ad97559bd32eecc5785d3b2bf668cc0eb","d0886e619546ab8e630cf9041b21d39a146861d5b7598b5044808c3537212a80","2d81003ff1cd2149e42eace973cb0f4cdd39b653f7b06a20804a1f1025023ebf"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3240367269 · entry 108e9186e8c5677acf8a…

Expected log hash

f6397ecd2b8639a3c60345d0c567eb602411c7eb1bead248c760bae850816087 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":"v1791861381931","kind":"published-quote","locale":"en","page":"brand:spotify","quote":"very usefull in every journey and every session of gym + study","rating":5,"review_date":"2026-09-20","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 (1da6cf8d96c8…), 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.