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.

“forced to pay again when people get new phones”
Google Play · 1/5 · 2026-06-19

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 2525257308

Proof data

Record hash (SHA-256): 6787f6d6598b1219750b96085b57661d5b44ebecc6bbc6bd3c7782b3d751de96
Signature (Ed25519, base64): GtRAp9XBOqGMRA6IIFL52WhZ0IYXxpknpIobVvNX2SEiDIvkP7lMrTtkDzk+ebnvaD49FtUBxtZ571bwP/xpBQ==
Merkle root: bdf558524b6fc08556728f259e0f09161d4626349b700d7f30fb50b05a626ea1
Merkle path: ["678377ed5b767282d8eb35405bebf91ee8f6e8e3753e8585393b65fded4630da","c35cb9c5b216cb3b5bd0a24c888db34f414dba5a7f2291a0f263206e73ccf80b","f92cdb75472060d384d5de7e1b4677633f5c3476a036ff78f008c5ef8ecc0783","7b9085daa17ca5b252637e94d6b5e65eaa837e838a5720a742c9904de8bd4283","ca2c1edd194fa27f9f8a51f3f99ce3c936fd35ac829567151bbf9c0b1bb62b4c","31f36677e0c68941e64036cf7b6f3b81d7fd979a29108af87b874928a51f4cdc","fe93e76ceaa7fb0ad84db283c524fbd113deaebf7e933cdd4148c0268ee282fd","19e5c7ecd0603a2b659b09873535c6d0963b2170ee4d98f2eca5ea8481cb826c","ef76552c953a5c80b832d2fea1e2b379cf7f0c4402d211d82df16489d99b06b4","f679fec89017fa50f6bd83229aa5054a291879be9abb011f3b75408b6936d686","b994b3415d0a593a0297e4582c9b84775751e393fe5643dc7ea40b2437cf92b9","079d9cbb614502c91ae64f6b44133b3654a69b7111651c8521775e87805a3bf9","eb1cf819ce45c15462a4daee7cea14e45935677491385f66e3842a303f17a540","8e9594a285d2d4b46501008fca51e6cb82167cdc77c21a7232826a5a1f448c83","7c1f9829e354481f51c5a693ce64e17eb8bee61cee659bdf8b794fb330eb29d9"]
Anchored: 2026-08-20
Public log entry: search.sigstore.dev, log index 2525257308 · entry 108e9186e8c5677ae552…
Expected log hash: c7cb1a1a9418331323cc64d3f101e644ce5e79412d6e55a22a9342e33025b7dc 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":"v1787195935480","kind":"published-quote","locale":"en","page":"theme:threema/price/en","quote":"forced to pay again when people get new phones","rating":1,"review_date":"2026-06-19","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.threema.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 (bdf558524b6f…), 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.