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.

“Unfortunately, I had to contact a different tax office by phone, but that wasn't a problem.”
Google Play · 4/5 · 2026-09-18

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 3138947147

Proof data

Record hash (SHA-256): ab73b5f7cec7133ba8963c386aaf52e246542ce6aed6682461cc63a84eb3f3fa
Signature (Ed25519, base64): etOF2OfTXt633NhRyf8a7ZWDH/ThLyQKTVZypbYxKECOF0N7enuFS1qH7SHvu2CS5NVnh7DAQn6Jxk9M0N/jAA==
Merkle root: 1b26d1b85473caad1868633ec4c931eb970e81199eea87926818f3f1753af37b
Merkle path: ["ab73ec2be6ac262d6b24e940c34b7bcb0ff057f87dd44a88668dab5db8194e50","b5f9ba088b967080ee9cd3cffbd44004f3e88babb13d8d1da79e378f9a5a8938","662303c9a8f2dbf85e855a8548d8adc3a3d41fca197d7794390720a296aa3dd0","9cae08bee29db71aa7d98e8a46846260fa572155451fa311c5a4c5bc2e70502e","ba5e3601df34dc307db8d156496563d2f740954bb1fbf53ff61dd1a38b18eb14","9b8192a4b56cb435a022554ced185687f1420a015d2170d0d5ebb86705f12495","1c21dd7a9b9f42c34fde0366563a0b32e8b08fb53c12173923737492b6e1aaf1","686d8053ca0e73735fdd2440948f9e41aa3c1008511ade54f1899f09f15cf2ac","c3b41664be3702cf8076dddf6f1ed9b4fe3c74d543a17022aca9352d5aa61aca","7220349dc3c8f32a5da20995e0894cf4ef3e980cb669b79a9d5cf0171c83b8e4","03f6a52edfa03eee5b9343b82adef3d439d8164bdfb0c287191f3cc7be57636e","b777021cb51f63e820e93fd9380015ecf012671cab543d5fced13e3651d329ff","c0dee208cfc82bb58ef8bfbdce70ae59669cc0fafa6229438e70014c20ddc06e","f13bd3931ffab245c82268d5388ec4e7a23a41a86394a369b97f89216cceb3ad","06054c91b82ccf7b99bb6b4fcb7c60afa97f93295e6829b75e5bf1efe9493e63"]
Anchored: 2026-10-08
Public log entry: search.sigstore.dev, log index 3138947147 · entry 108e9186e8c5677a2712…
Expected log hash: 8f66b765b7efcb11dcdcf57b81c46ed3317a5895f5b870638e23b76f1efbb2d5 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":"v1791425549743","kind":"published-quote","locale":"en","page":"subtheme:zasta/service/misleading-ads/en","quote":"Unfortunately, I had to contact a different tax office by phone, but that wasn't a problem.","rating":4,"review_date":"2026-09-18","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (1b26d1b85473…), 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.