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.

“You have to sign contracts with tax advisors.”

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)

48bd7d9d08a8d0c9f2f1f334e6c60501d63f41e538617fe0ffb7d141a8857bf6

Signature (Ed25519, base64)

ygQj68XyWuLjuMFtxvzMtVbzFWvEmbRtdte+COuRhwMP1bg/KfzhWExb8venf3EcwzIQtQ/Kf7DCj0kGqp7jBg==

Merkle root

5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd

Merkle path

["48bd9030142d0ade23bfa2f54b265e5885871a358fd433229ae6a76458c21d79","f58350a835bfa7092cb4c1bb297650812336913fa1135c85effacd2eb3eec9c5","974971213b5d442a365ffbbfec8da6d036d9038c997b97f6bfa4b16b1f71107d","88eeab3e6509291e92ff7239f5b5be7251625556903b58df5335e8b3b5191eef","ea648bf03b2c81a3fe66284240a51d4530bacdd981542257926081920d832656","a82a2d6a7d4652cdd08d8815696775529f91c063b349df846fdb16d6a39f0bcc","610b11c781e6ce5e8940eb0614a800d5075010a8f6d59f4ac98360e1ae9e0f22","811889724ca1f0d89a6b60845f0f3bd68e116ec1a2563cb0bd78c1eeed0542eb","39054b74f410460641b2d98f2a1e055bb2fe0b7820ba7fbb7caa8c70a0752581","4925af5ec565bbffbe03c15a01eba87d8d4e05ca56f77aa0952d6ac42157133f","90744b84a252d7e51d67bfefdb583359ddb1de8204f826c2012e228fb935f6b4","761d3c69791efc32a160ff138bddbddc7bae13863915424c916d5f32aac8cb96","63caf53777d803af92ac6db2d445588376da791f63be3d8e14916e9cc99957cd","f5d1cbec3469173c409764ba850b613628c88020363ace8f472e6f611d605e0c","eb97a4ce74ce5f5fa16f1703481b35cd770316cd3d34167e9b76f4403804f896"]

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":"subtheme:zasta/service/misleading-ads/en","quote":"You have to sign contracts with tax advisors.","rating":1,"review_date":"2026-07-20","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.