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 prompts for completing the tax return were easy for me to understand.”
Google Play · 5/5 · 2026-09-03

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): e90621482416059e82243275fd3a4e1be4a1c4f1a4ab4435d6d95791cd93fd44
Signature (Ed25519, base64): Vo+DFr2q+2m2fKkEzBIKfqsfQyn74gRsJlME02EMUOCWkNdHB9NcnF7aWir//qOwb54D8f21z1gvumoGeA48AA==
Merkle root: 5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd
Merkle path: ["e90b885d18cf887e95b76ed692a81f78ebab17789fcb3ef8740a7553aa3d4012","9c84b6f1407fe79c4960ab20a22755389d87d74b218d6bcacc972cbd82844cc9","42bf3d294ff664635dbacd7f082e2d88cd1f33c178f60d818d46b708d3d72b3c","97abd852feba1e0189b94d6c5097f88f46b06c888a1d3a81fad7b3b8f05ac619","f23896e44cda3b446c6d1e4d714cef27d35ead7924e8722c24289b7aaf36301e","e84e625c52640994c66e344f4bddb08a107291793ed2c0fa745bc1b77afc1229","d709135150515420cca64c869df1431d327ba3a5f70b4250e942857c89123819","b07442c00ab4690bacf628a29d0d7eafb197f66f95861b0dd0c87c281f81f594","d75361df4bf4b4eb6f5bf1efc2e40734d111d5bfb6f6d7ef7980a646792173f9","ee253aab15ac699c0c9fd88762e44faf8d4b3fbefbd35e8c54327fffeee3dacc","d60992637bb22397d5bfae3fff728cd28fad6f7d54df1da8670930d436bc8926","2b37358c7252f903ec12e33f1d8c9795879d270812aa5678bbf73d51654edb9b","06275dc2003d93dff6ae62dae412a16841a241c39c4d4453231315397101e1bd","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":"The prompts for completing the tax return were easy for me to understand.","rating":5,"review_date":"2026-09-03","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 (539721061967…), 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.