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.

“Das ist wirklich eine große Zeitersparnis.”

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)

b6587e472b863916d1448a0b6698c0cbb9b4a9c4df43f581c43567813f3cee3e

Signature (Ed25519, base64)

VgHaCl4lsPh+CHgWvQBwnEJ5mLKuP2v1VxYF67soF+ZTYxDzxPMQg9qS4LalTtBvBXMwcK/7OeZKMXWdcbZ+Cg==

Merkle root

5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd

Merkle path

["b658434732ec0432204256e064bf95b8414dc086c9755b25c892813c68e58c90","59f0153a22447ba7691521c413ce93dcd37a8a43424e771b48e954826af6230e","41672c0a4673e7cbee849d609c6e12fe4f987120e5998586f330b905dbfa5af1","c3f9a25110620bed496266514ee6361718045f759d69bb8050ba62598c6f8972","6f75286faf965cc896ecb15194d14fadaeaf36bbd20e3fddd864194707734180","f99d00bbc3fcfd3c987381f16692bbb1004b4b9f792c1f8f9ae5a593180b1c38","e9c0c6339a57d09f3bd93534bd4d3b2ea087ecac1d2f6ead80cf89ee979467e9","bd3987d70fc3718f36b5411d11d6731b341284f5c819d3781beda063bc3d3805","96e54a69d6f0255a6f7c48ff84304deca6300e360335f036916a823a701f8ed6","8933bb3ef9b3a40d01021c66408c492c74f97295818bd8f6eb4c7877dc810344","c919197c524c32c926c31f4b65a12463ada5b42732b6cfb01cf4401a3ba244dd","55a9b55eff9a801fcfc3d558b16967943372bf3872c32c7995af16402ab803e7","108f3d171e4ec3a22d208fe56e34b1a576bfa9e9f8a046f3c09e78ff42b08593","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":"de","page":"theme:schulthess/quality/de","quote":"Das ist wirklich eine große Zeitersparnis.","rating":5,"review_date":"2026-05-15","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.