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.

“der Beginn von Kalendern nicht geändert werden”
Google Play · 2/5 · 2026-03-04

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 2904877428

Proof data

Record hash (SHA-256): 1476942b3308b55605a3a7a4e6a2d5008f9b49062b2c9850ea405ebd02dcf4d4
Signature (Ed25519, base64): MedFEXPeoLU3BEDcaRXLBGQP8VR52Dj2Up4OTxyIKLUBJhLArFeOsInnIV2GXtI/6Oo67yNBHLHxX1s6lTwzDg==
Merkle root: e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef
Merkle path: ["147558f3dc8dc96d17717736d18324418e0448f62bdad511d5f1e1130097af66","e739a0f9a06d9543ac218ee7b69ffb6ac7b54bb52a87c02dc9a7b8dd0153a2ba","a364d21965ef9734485588fe6032ab9d5637ccdfaa85153df040f42828bbe3b6","588ef64cc704c53ef738c13856d72eeeccbaa12691c45e24af09399288cdf7fb","0ef6bc45fb0b42471cead5d5565d4bed4ded5f27807160caf2dba028bc8f2648","5170ff596fa7845fdd8c1e110b5ff5926a548f0b3a8589929ede7981b3919594","26bfbde12a6c8a11318a2cb59db492b112170e776ddd9aa4ad9699ffb07a203c","88a528636478010d665cea8a82a4f96a60b704ae4f1093011da73b8e2a502722","8d9154a8a8e4ebb5a637f8b82395bcfc9efa50d3cbcdf103d7330e6e393aded9","9fcae51c8d677cad89040d1651b954bb26b1aba0e8e74002d95c924c5569009b","07be6c3c8a9e01f9b22a73457cdae6cb1c800fed0aa42a077db2612d9d0e21be","31f91261e54510c82e0f505e928dcd01951b5f1b3bd1a4ebc39a5ed954368324","e3c57a8cebd6c96ff44fe2cffa20a59e203e20975780cfe446c93ca7bbe448ac","2e838893ef313b8ef0f87568e1e691fc197dfcee84413640a12968493decac73","bce5d442c07de6307e5ea8947098e74ce88c2246eda5e5fc1015a6d7519228a8"]
Anchored: 2026-09-21
Public log entry: search.sigstore.dev, log index 2904877428 · entry 108e9186e8c5677ab408…
Expected log hash: d020708737f55ccdf49203f373fcbcefe8158cc388605556fbfda3c365de7360 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":"v1789881486272","kind":"published-quote","locale":"de","page":"product:pixum/fotokalender/de","quote":"der Beginn von Kalendern nicht geändert werden","rating":2,"review_date":"2026-03-04","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.pixum.android.photoworld","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 (e299bf38720a…), 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.