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.

“Dieses Ding besitzt mehr Werbung als es soll.”

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 2621591821

Proof data

Record hash (SHA-256)

247b472b9cf0976d6c2df607e7821ba8f4a9d57f3f41ec3a32d5912e24e366b2

Signature (Ed25519, base64)

irUBWxc3bEi02dpaa6nTqHbJ7wjiQqtmXBB3L7y4oX7YdEHxGrT3HUrJ4WAZV/Xfzn+snSaCDGAYOnoZrvV2Cg==

Merkle root

80ef8d8174e5c9e41c4b3e86fd7f016ae3808fd6df1be7f458d6b538ad4a1573

Merkle path

["247e740b79cce0108edceaf17aaf7c73833dbc855b8d5cb4bca67b9f9fcd58db","1e916e86bad680fe990ab99511579ce459488ee3f172367e842b1fe042d5ec62","0a8fc55047ecd3b543059ecdf1c428798029f6276665a722389a4efdf78b0a88","5e676edc4455ed8be08172af761b0f2efafc7fc42af890c979beb6f9a0655d5c","fced9c4e8126c22bfbfdb32fc684f2a7ed46cea0b79295651d0fecc2939c3deb","1961cf435c39c448edea279ba845d4cee736eadf7cdb1b98ae6aaf23fed644e2","4f4f9b485641463f505dd5be289ecb4dbdb55fe1483022fbd9ad75a69315d7e0","5c7b7fe6380e017c229fda3bc02348eeb6cb5ae74323faa4fb09112d837e100d","29c8838dbdcba32993f76def84b280874ea05586100fbc1ea863bb08cf326f31","3c432a03cb9d4d1049085688771d4dcfcc1bc4661109e452b3b3667d893a039d","eb94d6d644a9d1e6c4724381f83094e1b0224b77bda92b3ec0ad9c52f604c46a","b1de52eee09a6e47a8c5e3307a36ef9f5e63ee7a278fcfa517698175c0bc77ca","f750e38a739e49891f23aa1e661d12425441a712e16c6b53fb7b0fbc333659c4","6e65afb9564f3cc8ff91301d96b8fc4fbac4c77bfb9c9dbe43ce13006661d50d","8d9e2142445a56a1b8facbbfea379c6a3fe5da494546393de95f71ea2d5e97f9"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621591821 · entry 108e9186e8c5677aaebc…

Expected log hash

1103461f2f136c93d3dd608a948686a2f30160cf05200779542dada269979b94 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":"v1787890464756","kind":"published-quote","locale":"de","page":"theme:acrobat/fit/de","quote":"Dieses Ding besitzt mehr Werbung als es soll.","rating":1,"review_date":"2025-09-29","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (80ef8d8174e5…), 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.