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.

“nach Kündigung des Abos verliert man alle alten Steuererklärungen”

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 3240367269

Proof data

Record hash (SHA-256)

4a3136ae15f27e75929a5f936a3a8589b1e273f1873c4ae2caea17ba745006f8

Signature (Ed25519, base64)

oNuKLxMuoBnHgf3IBG/sljyoSwyZ1VhtUN8l5cRRF4cOjRQP08cK3ZRcWIzoqW7bTOhpNh6wWaHsbXlypG8GCQ==

Merkle root

1da6cf8d96c8876e66e82e9bea7529c76d7e25eda1c07550505caa1baa49c4d1

Merkle path

["4a2627d5bda25a1878cf6c7d9599cc2b22938b504e6c8eafd6d784f70a60a914","4208b2ad8d12d6e01260ac0547458525a2cd7438048d355e1fa4e1a19d480536","2aa68a4ab61c9bbae3067991e461e9dd542d1e28a94eb70e91dfbebef3b50ecf","064a79fba744925a3b20d2ee0baf744b593360342ceb3f04ea5c21aeaabfec37","96d812eb5d7513af52e6716f0629b01db7ce35784104c6d52513dd30a0c0cb5a","8b96310d3664429957db65bb414ff4b800b7bf2f0a302be555bafacb08052ec9","4018bd4c938be678d71dda1bdcc541afb6597a7354e211c909c8e850b7a0eb32","937fafbe1adc24e3c1c6f6ca7018c98e217c29989874a29b64f25ca07b4f3ad8","f231a643a6cd4b4a8a340cca5a24075dbffeaec76f4b84491a7875683604e734","3ef229ada26112a81187a7dc8d4df26145212c3743344de76d5a7e0a50663604","67e0df2f702b6977c8afd5b2e15cdc1d71870f928c9526ffdcaf399732267f13","994e6d7ea103100577c4cab0d6712d9ad97559bd32eecc5785d3b2bf668cc0eb","d0886e619546ab8e630cf9041b21d39a146861d5b7598b5044808c3537212a80","2d81003ff1cd2149e42eace973cb0f4cdd39b653f7b06a20804a1f1025023ebf"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3240367269 · entry 108e9186e8c5677acf8a…

Expected log hash

f6397ecd2b8639a3c60345d0c567eb602411c7eb1bead248c760bae850816087 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":"v1791861381931","kind":"published-quote","locale":"de","page":"theme:taxfix/returns/de","quote":"nach Kündigung des Abos verliert man alle alten Steuererklärungen","rating":2,"review_date":"2026-08-24","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.taxfix","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 (1da6cf8d96c8…), 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.