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.

“extremely useful”
Google Play · 5/5 · 2025-06-24

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 2515033577

Proof data

Record hash (SHA-256): a151bd49b3a39f8098f1d1b5274363a556aed5463e598a4f9d43547895c8f9f8
Signature (Ed25519, base64): ruVoDcrbvCQmh85omy4sdRy7WWw+RRFoECbXcOWh140KDKZyNakjwsmyby1A1iLpsOee7/beMn1vRTQMhLftCQ==
Merkle root: 62390602d5b1801b2c96dd61074fd5810278db65461e368ee19c9bb147d249dc
Merkle path: ["a151d7c8a544b31d907cbf90c07ca69ac0fcfac6d81de3372213e339bec73f1e","b05b8ff29ff9845256878722ee5f1ca15d94d5066793d2b7e74f358582ed7b29","49675c53eca246cc6cf9858b2a2b2788fff2324a8539e11151dab17afc3fcd76","cda8af66b01d19a9abb3b8ec08281059687bb554e09ad00916b7df8dab71abac","0caf01bce4c4ebe75c2dc8d7a7fd93dd5f54b27526528fd8ce9bcabd41cd7b74","3f08193b9c9ddfb8e094a3146118d14dd52333886b422a384fd8470405df419e","179d3600ec3013a4ccbdf0c1e12bffce58e202edc43c1e51b1c1318be2032259","246c3a6a837d8f9c4bde59b1ce4300f1e262544be369783d3d2ab300fcd589f4","09948bd5d7207ce0860685f72d195c43b91f7f9c40eaf4339989c48dd4e52831","9555abdb0bcdc0c53556c5494b8bf6a2f24266d50b516b2394dc68d6da2af70c","dfa9314b3b47e8af5ebf7441415ad458772cf23d0febad32a03694f57d0561cd","a12b188e1ae32881bab6f2ff2aeac7ff6ab6525d175cc3c29ebf94dffef69125","5f700ddc45cd2629748dc21d83e10ed946b2f02a806998345c5a40890c3ab7ab","baf7c3a9a57269bbb0661385ae981f5f3219ae8da84a7502572e283df3bc7435","9092fce07a46a5708f071a70ba5ae2d3ebe27de5e813ea1756180e7747d7c5d9"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2515033577 · entry 108e9186e8c5677aaea6…
Expected log hash: 458ac564101d02a2c8a5f98465ce4e920300682f0855e017234ab870c48a16cf 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":"v1787135948936","kind":"published-quote","locale":"en","page":"theme:meteoblue/delivery/en","quote":"extremely useful","rating":5,"review_date":"2025-06-24","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.meteoblue.droid","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 (62390602d5b1…), 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.