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.

“Smallpdf.com is really wonderful to merge the files”

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 2681429093

Proof data

Record hash (SHA-256)

11b640b8a75db7c98b72c620f1cfd3e5c88b537dc2a3d8ce7911fbeeffcd80c0

Signature (Ed25519, base64)

pTwn/SJP1PSxh2EG4bYGx3MAur8Ovmp7Mb3ukgMZdi42BHFnT5/e5QuoEfJWRx+x6xNfK2qCbeOVQfrRYrS0Cg==

Merkle root

49d75a7972dad7fc75a734f764cdbbaa106268e1ea0f657aa8c6fd89424d4b2f

Merkle path

["11b4463131f84152d13bf7b0bd733591a703007dd35424d2c6b214c3683f14be","3939c6a6b3306e49a0e195d94d24b48480ef6448503adc32db09e6d4d11a8c8b","df88cbd19c4aefc13617100ee4687709f9977695201925f9accbc83ca71e0d0d","9a61101d2d8b4445fcd80b9123cac12aa06e0de278187100507d01ed8d564ede","98c8e9df1416fd48da9c4ec99426c8c26c9fabcb34accca19b910693faf82bca","00dd2a854edcd26938c21e4726931e934f4e1c5c6390fe982d4c24ce72bc71a8","ab7cffbe24ac5eb3e0e79e56f65af0b951470793d1e9cc8846e24727f8b5feba","5e6476466d9c5afe0137bc5d20c85a93cda5526ca14e3c9364a3509ecb358ab6","77b2a106238b4fa0075091447841c0b376611f5d354ca2e0b897968c05d4c8c5","82495be51cd7e4b9c775d8353fc33c15abf2ba816a8229ad37af7c4476cd6da9","971a4137578717d4cf8b796fe2df4bcf346932fbf526bf7734db31a4e757bff2","9ad764adb090606813af8d981e25ae04fb555663f4dd61ecaf358a138629116f","f930e87d5846215d9d33cbd2f684fd0788c4b25eadd845d1575c3bc708e059cc","79d6c858c8d60d7d4fdeb98d50012f464859bd3437e8887f9a62b641664e5493","75fe8695ca709a884269711b05fbdac24cc3f8930abb9087723ce2c8cfa8fe2d"]

Anchored

2026-09-01

Public log entry

search.sigstore.dev, log index 2681429093 · entry 108e9186e8c5677a81cf…

Expected log hash

89c17d1b707f92667072f2c7dc2ae2ebf8b7354f0952f06862b4ec01440c148c 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":"v1788303366831","kind":"published-quote","locale":"en","page":"product:smallpdf/merge-pdf/en","quote":"Smallpdf.com is really wonderful to merge the files","rating":5,"review_date":"2026-07-13","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a546bc588d172f8a2112c34","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 (49d75a7972da…), 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.