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.

“I tried to cancel subscription but unable to”

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 2542342116

Proof data

Record hash (SHA-256)

7f8c74ce15dbeeba5e20f3a0d3de0bb3eb83b4dc4ad74ddb6d3b69698d4e0c49

Signature (Ed25519, base64)

AcUG+O/wHV7E2HQA4sYheK/sx0yvQFI0UZ0Z7/dPwQe6OLTqIHwAwxLbEzvq+hSZTL1tulBd5aOryRpRaTozCg==

Merkle root

13d851a0949e31431bfa3cb9a632b995c3cd1c62cfaf1eda783bd9224fc47725

Merkle path

["7f88914021e913a1e6676a850dff8f8b81bc978a82038013d8881cce2af28871","abdbd801ea7c0192889aa6ec5e832e6211871c44dc19a72e90974ae374f27711","6db298db4786eca0c865964080ea1129342ca563857065fcd9bbdaaa8717acef","ed66d2b391863fdeca09f782d7e7255e87d769059642aa6c6423fef09a8ff428","72c24874f882082e43a7b2e917b80ffdf74154723ca5d3a8b223bd29c3466e05","f712269a13c63beae49f8e718520837f515783ea29477b04a309eb4ecf56e4a2","50ca1f5c418c580d9557c2f9191f97e0e9d1103f6613a6d6568a50fe063dd844","4db87aa00c381fe5493c5d0fc092aa2caf8adb9d56239f892cfc89ea8f50973f","fe160452a214e27247a4e1be5dd574876a242d695b6a0571572714ef5eac59b8","9392e4f7095f4765bd25380a9ba3a79a44fba639835d9011de68b05cf550155b","21f036425bf3d77cfdcd86d2d581df4601dce1a365284596d6a18d2637dcb26d","88841cb2d742ab02e4f4aaa3d518474d5bf2c2d0b724c55d853ec9122f8d2c4b","a85948d94666cb760325015d876c34467e4e9a308fd736b88b45334d957c084f","8794a267e94c305c4d11faa8a55bb3d3523fb52e75ea5ecdc366a6e906d9f7ca","bc9aae2a90fd8d311435fb1459ac7953f7f2923aa1b697bb0b40101796e3503b"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2542342116 · entry 108e9186e8c5677a49dc…

Expected log hash

44bd329b5c5f42e4fbaaab1e9a27845aedd26351446bc96ba12b520a563b7433 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":"v1787279544668","kind":"published-quote","locale":"en","page":"theme:acrobat/returns/en","quote":"I tried to cancel subscription but unable to","rating":1,"review_date":"2026-07-25","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 (13d851a0949e…), 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.