Ludlow ( ) is a market town and civil parish in south Shropshire, England. It is located south of Shrewsbury and north of Hereford, on the A49 road which bypasses the town. The town is near the conf
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb4c6a62f0d4f34a2a52f095cf08ef13c074bd9204dd608a9246ac5aa3dd751. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cdc0d72f-3c7a-401d-97b4-0b5995a41112.json and https://artists.proofprofile.net/proofs/artist/cdc0d72f-3c7a-401d-97b4-0b5995a41112.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).