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.

“supposed to pay a €99 fee for it”

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 2893887498

Proof data

Record hash (SHA-256)

a1dc5a2dbbe12e888bc588bc869d52c766b0dc728faa6e4a6978059988c0f760

Signature (Ed25519, base64)

zZBImFeWnY6idmQ+BAQMWqE5zqT3A05hjJNZoyElellwo1urQJbVvlFpKdY1s+lvPS1cysBSzH6RmU9fiVjQCw==

Merkle root

2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88

Merkle path

["a1e74c2d922cb15171ac15e857cd9799fe0a7a29a280672bf2bbac90d33065bc","c010a5480a6cd236b9be1204e00d325874eeeb99eb22cf9784044540fe667553","0d2e9a0109bcb9a7179c1432dea89fa38411511e1a2aa62bf7f312246cca1f82","0f03a55a5efeb6273c6f22060e6c91980f816cc37f16e5aabff5aee4809edd8f","f7dcb5e4fe79501b73800af29992cb7dc551e93334f1a032517bbcc2a8d1fb5c","08aa96195d00f54c2d57881f934a23fb20b00ec008411c2163c3d62f1720f4e2","c49d0d24c492817b6fc226bb645e33b07b2ccc9d6147ed1d81ff1ae6cb04e475","478e5fb29cbe512a82780ae2aa9903f8a0593dd701e9ca007d209134a4105ed0","d182892530917b76d9c17a4bc2ce6739429c4f7e4b8a62943c9ae158ee042e33","ec5ff71edf851c0ea79d6a088d5170d354edad89df8a94b07a93bfdb5431bfcd","38d792e5ef64ac3356d93357bd9309dcb9785c5c2c5d07379ca528ac390214fa","c22fe83bd144008efb96895e17f4e6f8919a56dd8220cca85f3aa44cd67de0ee","27978d996981aec54e7305bc9bddff422c8ed02487f8eaef12f84d0b2ba90b9f","537f00dd60bfbd8c049786f7eae4da8a735af5b60dacd3bc1b6054b8ac3175e3","58a3dfc9ad8696e92f5fc9960e9c6bc4cc04e270091b574a948593298b33d1f5"]

Anchored

2026-09-20

Public log entry

search.sigstore.dev, log index 2893887498 · entry 108e9186e8c5677af79f…

Expected log hash

90099e0300c6e23b62e79318296ebab91bff130379d248ada57f044f77e72ccd 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":"v1789796056710","kind":"published-quote","locale":"en","page":"theme:taxfix/returns/en","quote":"supposed to pay a €99 fee for it","rating":1,"review_date":"2026-06-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.taxfix","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 (2f068f3de56b…), 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.