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.

“the size came exactly right.”

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 2991846025

Proof data

Record hash (SHA-256)

1f76a2b9fe559e19e78ddb0859a46062ad74bea244e05c0fb8fd98b4dbcc0bbb

Signature (Ed25519, base64)

WvtznfI+xQMBoG7l/JBECfAfVM54az0pQ6G2tXX2YdXY91GbHXgb7ABzo0+HzoptjtHteNz2TxBhA7Vs+5vcBQ==

Merkle root

d312d00ed6ab2beb6e18f20d8087ad3474eb8b04b26d5ad949e9237bf3ca4c52

Merkle path

["1f74224ebd5cdf5c2d52b397211933c07f52f400d4f6e7a4bd08aa5867767cc7","61fe5bcb199000923b02892555608327517c6fdc6bf9ab9109cdd4aa841639c6","493d7cd2a88e872c3baa16ee29e9849c3b2759be8b1fccd9916d35efc60a8538","57b9cadc8872c0870fba7f5dc51ca3fbe480072dfc0080f9adf6a1c4105f46d6","14b092e6ace9ffd85733bbe3d6b70043fe48852a73309a84a8f95d00903a684c","8b7bb358e9d502368b49b75ccd444fd5ba8b8e6809284b24019763f1e99821a1","de990a38ddceb7b5bd2fa6b238fca60632ecea3f15f2c644d3b5c6bbf15acfc6","adf711f351d96adc2231fc4297d25867136b12f837001c6e2c5a3f339fcc3d2d","ed0d90cd62dc4dfca1c43fa5399f847bb8fabd48b75f84a2edcb7230fdb7a2a8","6c5050809aa0930e6b37ab4bd20acf8ef0b6cca36d326a0d6e40bb530294efb9","ce2adb605fabc8dfb524ac94233b969f5fe0e1b5790f6fc65730d71c37ee5682","74932e28f0b3b1367318138d4910093d81e1c367dde921362a853aee461a31bf","6a3e717960ae78d5d2813a0e2f808fafa517c2830be7676aabdf067e5e110ff4","c979fe4edf99bdc6f66f54b8524194d66725def21e08cecedfbfba469c82e6f2","2fe1a36eecbe6e65e0243c1a81f5f430e558c99de7c492361bda367e122fe03b"]

Anchored

2026-09-29

Public log entry

search.sigstore.dev, log index 2991846025 · entry 108e9186e8c5677a5f08…

Expected log hash

321e41cd200068478c5cf6f353f00dbd75153d3d8a640e241b1a6e8e4f8ac2ea 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":"v1790574513694","kind":"published-quote","locale":"en","page":"brand:myposter","quote":"the size came exactly right.","rating":5,"review_date":"2026-06-03","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a1fe27e444579e2cd1915fe","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 (d312d00ed6ab…), 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.