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.

“🔐📲 Threema is like texting from a Swiss vault—end-to-end encrypted, metadata-minimal, and built for serious privacy pros 🛡️.”
Google Play · 5/5 · 2025-11-01

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 2514013184

Proof data

Record hash (SHA-256): 66a11a93b4d9c3c8dd5370ba9a386d3ae425956e393376737996bd3b49983c34
Signature (Ed25519, base64): OSO0MXFjhSxawlw9OEosf/6eJBGqmIc7qaLG/wAJ9nRCAV0iuMS7+o93PriQPaLGZbqaPsnq71GnN2mIJw1xCA==
Merkle root: 677e672fa444dfe5152ab91687c577772e13723ca441b5c8063508daedacfe44
Merkle path: ["66acf103057184bf8d55d2c3bbb5b4dc286e5cee1fadf610642de7528f60472a","80e0fd21a523c0cdae3c6bc363872b8bcefa7dcc308f337c0461a555a78f110d","9c82fec65fbad892b32421fef2cebb36e9ce51654456a774a27d231420f1b66a","d007cfc75fb68934d385d770a023235ede9af40c7b7dab9cde923f867cb72339","70894238913d17cfad9feb9d57d1985caf3786e500bce8a79f274079cdfe1e10","15e509047549517c51b188ff0c00dae5493b6b488f870a45fd62d9a63cc51689","70d3ecc86b9d79237d52a87141c834a2c50a30281410e7e68113d3ad61f12e56","786bb581eadf789e4ab0919aaee427bd20a9f04cbac73a270b2e81c48e667570","1c1059f712574a258c4024373a9ab71ef105dab2bed5d3d6823908917b27d6f5","055cdec71d7a801bddfe1e6e91bd7b6d0a33a468ad9a5ebca5d1fdf955621fc3","0b5f81c1397895a67fa0c168f5a03dd82e09e6398e5f4a199ab43883af912889","5999ce9331a3d3c3b42ff68c7d0c3b2938b4aad17e69c094bbaa432c5034da76","ef65dd9ebfc0d3ef62099f320670e0ff1ffa0aefd392ab7dbd6c1c6483d33d7b","3e9df542f4415cfb7321e531014c29668083cb06fd7805d6083ebd6b24fa289f","188420cfe03d9830600dc87f84622c41659cea53d9b8db8954bfc926ce1d4dac"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514013184 · entry 108e9186e8c5677a6b00…
Expected log hash: a596e5a342226b61371cdf76b5c8be8e37a3d00e7ffe8f7b0b550e1a8d1459dd 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":"v1787122978040","kind":"published-quote","locale":"en","page":"theme:threema/price/en","quote":"🔐📲 Threema is like texting from a Swiss vault—end-to-end encrypted, metadata-minimal, and built for serious privacy pros 🛡️.","rating":5,"review_date":"2025-11-01","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 (677e672fa444…), 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.