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, it's not easy to reach anyone by phone.”

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 2948162176

Proof data

Record hash (SHA-256)

f5844c85d84713c8731bb17e7959369ba7a7b53a91806bfd68b1d71158b5b069

Signature (Ed25519, base64)

Dfson+Rn9cCIpdccJ2FjcPSpZjwLRycBGZ7Qkq7Zztsc8JlHyOD10ruh4QlDYiB70wm/hI9mj520PNwTBFZpAw==

Merkle root

5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd

Merkle path

["f5869e82ac91650afcb30dd494792cff8ee9a99ac45ee8cba337ef2ca90e2e8b","1b76ea67cf560cd835608470614420afe68348d3186d1994d4c41765440ad93e","2174ae28cdbed8db9134eb815ef3a166b86975d084653cf1b3a788999db899c2","96dcddcef93222ac367c2dc6d60789d6ee2492d390923f00da86bbb1baa1641e","15bcd09d95a45007e428b526615c8e0731e3f165153cbea2f1cb322908c50c64","8e85c5bdd0180bbbbe1cb6e045bf623dd0682add92cf5f07bbd539f042486732","85f60f5e82de40d6a7a8ea04df7ed79a95098ac668ea4cd9a78271c0687428ad","8e788c8b563e52e3e2896ffd75c2b635dc8012667431bcf033a97e1a2ddba787","4cb9d737a48200edf680454391148f5a7aeaa7ae40bb7e588ea23f8825ebfbe8","dec34de22d58ffda9d721d248370bfe8679cc060c0303117817cde010304106b","cbcff8c764f5bbe7f5e76017c06c97692cc9405ef5d5b0e43636191e4b6b578a","dba69485f1d01b1a1a0b025a8d16147fd90f9473b16d200f26c0a34e7aba2d46","82803ae7220a028dcdfe85032be69ef5f73bd7602fcbe12652ec0c9b240ad883","aaa7b399bae700ce8013bce7d22a5956b227f2e0adcc638da32f9fc5e72da67e","77ebbc5a767f49a9f64068a716a8c843de0ea8d44adc624726bf46e2e415a41e"]

Anchored

2026-09-25

Public log entry

search.sigstore.dev, log index 2948162176 · entry 108e9186e8c5677a61d4…

Expected log hash

5ff8f25b7934b5d72d363d6805344624efba4d637f2c851f11783b259b9d81be 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":"v1790226990092","kind":"published-quote","locale":"en","page":"theme:zasta/communication/en","quote":"Unfortunately, it's not easy to reach anyone by phone.","rating":4,"review_date":"2026-07-19","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (539721061967…), 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.