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.
“changes are not saved”
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 3126883925
Proof data
- Record hash (SHA-256)
223b297b1440e0ef6a754e52a6a874c112a0c3394ed8503f3c679fed40d5dec7- Signature (Ed25519, base64)
DmfAAPmA9Yxd68AmLEvT9IlBw+2rL0/V9RoYjozT6EgLBHkhATPnR/cZZAYU3tRoKaI0oCtecQOKP/tnZ5oNDg==- Merkle root
0d7fec37eb7aa7ca022c461398d36283692153bdca7d5292b2302abb6878e5f6- Merkle path
["223819b41ae4ce86208dba84c7e231364ea368710abf3f8211f0ddcce31c0801","6f22ab13db6b085e9784429381fb2a5665002430857cbbed4ec1bea80e92ecc5","e45a79c22718813610fa5f21732bc70750a1af145a13fa78583bba265668d79c","b27bbf281fa06aafb6a66182363471c3503701670b436d3d4eb7ab5865aae772","906f71ef468bca33ede45f350eabcb66aa1f359e1e0e9c3d5c55aa10f45993fb","420ab25423aac1b9b8a47e8bd0da2027652f2649c88a6a230ec8e01671f5012f","81b82fcf63caefae953b9c1ad073b9a86f9c5aad2a1641807539c003ea2c7abe","c1820ee56c55fb4c814360008ce1b1f940b874decc7aa7d77414c8249da631b7","35b21b93f9b422f9f7aac5b5572e366d6ae65a78541bbee8e5314611e79aa20f","fb8dd9f099f322671f74f875a7fd569ffc4b08c8f412ef9f10aeb75dbfd2d603","446d6f00c1aad1d74b7f09ff895df9eb12a934074935ab5f3affe4efb14a717d","154ea3ce3953e7a2f9310701e07b1dc6a4db12547da6d49ffe0215737f5d6220","f77c5de7cbbb3880e295e9751b837c38e25497099e33ceb7e9621a8a350397f8","7c6f9d1168e8a2f5a015e8aabaa46428ad67e71a9293d82f20ec40d2ad6c53fb","8c6d73d3d8b42a55077d4061fe37663a0906972431ecb9eb374f1f8461206839"]- Anchored
- 2026-10-07
- Public log entry
-
search.sigstore.dev, log index 3126883925 · entry
108e9186e8c5677a6678… - Expected log hash
-
7790667e260445bf729ea3061132c2116b163a0e0b944eca343c9e8408350ef6The log entry'sspec.data.hash.valuemust equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm. - Canonical record
{"dataset_version":"v1791359818972","kind":"published-quote","locale":"en","page":"brand:xodo","quote":"changes are not saved","rating":4,"review_date":"2026-08-10","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.reader","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.valuewith the "Expected log hash" above: it is the SHA-256 of the Merkle root string (0d7fec37eb7a…), which ties this proof's root to the log entry. -
Decode
spec.signature.publicKey.contentfrom base64: it must equal Citatio's published key at /.well-known/citatio-signing.json. -
The entry's
integratedTimeis 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.