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.”
Google Play · 5/5 · 2026-09-16

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 3258859570

Proof data

Record hash (SHA-256): 1c0bfe94a94ac404544ca2e8fb69176ee4d1b7b9e1fe42acb78206e2a859d9a9
Signature (Ed25519, base64): 2JF2dubtqI6ESqtvduPb25QJ32z5bQeSYmzjD9s6R5xHAnSv4hkB/G/zNRqn4ho/Q045SJOw0Gxygx81ybdSBw==
Merkle root: ca3049e83faa90e23a8ee728d82960c74b9da8080000e4c92979853b767b75e4
Merkle path: ["1c10b207f8151ca1beef5c6a18cbbb7ae13e4eaad8197cd341a5a03177d469e3","fa6a6748bcc9f86236179f9241801d688cb62caa5abeaa4a0babac0cfc9ed5b7","51f3e0fa7923c9443733f4bd873bd5d0583abe7afdac7017070029e1fef33197","f113aa36e73149e3d73459d4ad0d3d05eb3811ffdda9b1c9df12d017c26c0819","cbff849598b6217cf9cf22465c97762dd69ca7be232539d3aa0c990f48d1bf84","80095bb61dd88b917c3601755f7fc535f1697da9f938d1ceaaa37b885b0a80e3","226891afb53be391086253357bb76151980987ed66a86453bb19020e522d17c6","87758c87ecb4323610f9b477f6d481d44a6e8d449f927aadfb54eb7a0b2f48e2","c3e97e6912f24e70057529e0e9743d3fedda63f647d1556669c0ad2235365d32","07e33df340bf65f90d7d54b0f16925fa2c94e200ad431c64d867123d98a36a84","3c861171afc1234c13d38e0a9581ac6cb6efc1343332ad0b81835f9345442915","c528a565399f1c43ffb0fc3019a2c2cee2d7413a87787555bb34d4d613541976","3eed51977edad6c2579b7e509587049321fa77487298d3b73535214036c0118d","7614ef067de1e21e5c4ed10ec802ff07f79b9dfb75186edc1d9abf343905b9c9"]
Anchored: 2026-10-15
Public log entry: search.sigstore.dev, log index 3258859570 · entry 108e9186e8c5677a8fb5…
Expected log hash: 37382a24206a9b79ef105a983cf477ccafc4b4430b1549876c44fbf5fedaafa5 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":"v1792034893828","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

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (ca3049e83faa…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.