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.

“only the time”

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)

9f22c38635527aa8e7bbd994469b383783818412c8926760825751cd3ff0e234

Signature (Ed25519, base64)

jf1SwhPvoomgj9wq3jF5R7WQym7dtoV5lAqG/wNFKKbu9WBiYD9UC80TZQXOnd0i9Ff4G3exCG3EwmcMoB7jAA==

Merkle root

5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd

Merkle path

["9f25739fa3668cc73ed9410208ec8cf46ef5d6473924a53dce8c43f93869c17a","1ff8e44e9b7a067ef47f63ccbd6c037fa2c292181fe1dc7019f5376be9337353","deeb5b9d50579564519637f6b09dcc50251209f23b6eb12677c180375b4a7ace","0365fc54501da00a4537e6d99b98ea61f84c96af462cdd5cba395444184a1333","56baf37ea0b5cf6e31d37ef37c931a81e7583c93fb71c8ddbfd3891934bdac36","701df8dea32efb7e9d89314b623febe55e5afe01cd1696d5f8c7a72d7b9b0d07","24bc9b957e363483843589db4f2c27ca8a09a8e1cd673a59f17d4dd07697fd98","5f29cf06b79ab380107a8d8c394989df9459fcd8596e4600b0a4a345a636144f","aa0cb46a285cdf47247565f6a9efee342c60a48a3888c8d2ce155b4120a18647","dca177411a9537fb9867b2458c4eac87716b13fe947964e7c0d468eda94cd89e","2714638b7147c0d0cb1673c1a0e1ee4b526ab6eb0fb98ab03c3875f7f112ec87","3a38d47949efc602ff6b616965b31e8678e49342630177cf4660e5e840948405","cf100015419b4e08a8d3e2de5cb23ad7a262130bd3e6bdcccfa47329e90a07c9","468adf75cd56eeaa89e39f50b974b405db9921529d680bbe88ff0d1caae6f316","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:schulthess/quality/en","quote":"only the time","rating":1,"review_date":"2025-05-13","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.schulthess.mobile.android","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.