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.

“After every song, I'm bombarded with 2-4 long ads”

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 3178115911

Proof data

Record hash (SHA-256)

57bf16d05fcf211086f8e51e856f28cbd13edfda47af34a8971d3bf119ab4c06

Signature (Ed25519, base64)

5DzJQQusGqCm8IgRBFkwOPruCswUcF0Z3IzHA1pXQ2J/Z0FxhKr5wHYN0dhBxoiWPG52oAMAc8q8LINim4TaAA==

Merkle root

afb9ffbb4b4e88017e1c868247f919ebcfe69f09127d391e7daa08019eb2b63b

Merkle path

["57b7836a28b0847b55275412f836a24319779b135175c12233439cb6c90e5558","ee4f748293c7f2b7904a576afa0ea347806c4dad9c367afacea38266d2efd43a","d7d5f7692c7bca62f5ff32b3b968c63dfe79aa48ec782ac5dad7510edeae2a54","cee092e5fee2aaf07ec36afe2fcbbc864a3f507b2e067ec0e228f2d03dee21dd","462fb407b63f031f1793275c80dba8a00b16a96c81b3528808cebe7df2b041b7","e24ca77ec2a5e2ac5d6edbdf7f94fe61139472445c9a1a87e6b89222e8ee279b","23206a83e986a69cacfdb3bbc83e7938995de4d9408bdffe8cf43e3cfd9765b7","5afd7c5bd1599b3917a6c29669acfbf818741592cd8ae6288d8f987a3138039e","0e2f7c1760c49929a8860295b29a89a1e917446ab0ca8ff11997a56644f709ff","7a0fc08fe469a40a79a560326d1dd4a4f757e3e04faedc19b5cdd24a936eeca1","dda243dd061ab6dba48f54033ab5da95d0f031ca4b145e0a3ae4adf84b4747e2","ed12f30047dd4c3669ec0c51ddd1fe0336b8b598549b0f1447b25501a6c42fa5","cfc6855eeb5cd3bfbc64cd1a8365b676fdd5adf536ee2637beb35214ad734bd3","15ecb20ce6559654c94b8b858c027c014996a92eb19771813db0b794d6214fb6","72bbc4ee0a973113b1d556f76d02fea2c4704794a0d313a96e49ff7b6174dec2"]

Anchored

2026-10-10

Public log entry

search.sigstore.dev, log index 3178115911 · entry 108e9186e8c5677a2bba…

Expected log hash

a144ffc32dfaa9fe45b4895b7f4c17280667152868dd8de227ca2811c60c870f 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":"v1791604579182","kind":"published-quote","locale":"en","page":"brand:spotify","quote":"After every song, I'm bombarded with 2-4 long ads","rating":1,"review_date":"2026-09-19","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 (afb9ffbb4b4e…), 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.