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 ausfüllen ging einfach”
Google Play · 5/5 · 2026-09-19

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 3273342496

Proof data

Record hash (SHA-256): 375c37b9b5d87ed62dbaf2ab37388b097a4eaf0fe9bea5a8ef1f7884d243284f
Signature (Ed25519, base64): enrp5AkLAdLGSPUSBfMFna/44gBi6fUEZ4xvMMMZEHM9iSYcoJu5SpJNcDxDXt/3dm/dEFYDpYK2P3l7jz3ACA==
Merkle root: a6a2b4c9d7d1eafa4a3ba3595aa08f11c105165de84940ffc059f837c445104f
Merkle path: ["375977b65aae619239e690c81f53bf4315f458e5166cd6819dcde1e1a7c8c961","3ca0359c7970d9bd3a187d897a5d5de1cb0b725a513152f92744f1fb23211a42","dd190cf1e155aa851bfb99f5e168c24309bf527fd1e852281192eb53d6161e97","2624921bfb5cbc573d25e371c39160bc02e92cb57edd8e5514f590ac7710d89c","33bb7ecaf22ad1a84c41385c56327c85c28ede4fe1869f588a446076232025fc","1f1d6e49f2ece376840bc8fb4547c18a3f16ab504b9c218e077607be67a8a0f0","d3136d23bddabe03fabaa708e798f5aa5ad751b7201b92362090d0cf90089a5f","bd6d058c5e315ef3f657dee403f49faabc0bae609bfddad96e4f974c0f14c662","63b1883458322b5abb7e7607c53901bd1d41c00548f8fc80487df8801178d87c","62c8912b61418e471d9173a683ccac8eb70c3c1e06f8aacbcb58489aee8e168f","bced1a37bbc0af3d8e952a7c1ec7b33a02d84014ccd248303a3b792538a7088e","9673acbab717662371d7b102fec46b7d359ed0f02d02ce5d555ae75d9c60af2f","95302ff16156d5e277933eeb7a8aae0bcc9cd9ecc1e7491c1aab462ce098abfe","d9b9cce27629bc902030340ceda068fb90d53ddab20309d3b3d8bb3949c170f2"]
Anchored: 2026-10-16
Public log entry: search.sigstore.dev, log index 3273342496 · entry 108e9186e8c5677a66d7…
Expected log hash: 8a8ea4260f3039926c3342603d4fca7ca9e5c627d841ac1c7142e303a049d0c7 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":"v1792122420855","kind":"published-quote","locale":"de","page":"brand:zasta","quote":"Das ausfüllen ging einfach","rating":5,"review_date":"2026-09-19","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.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 (a6a2b4c9d7d1…), 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.