thumb|upright=1.4|alt= Shoom's logo which comprises the name of the club written in a font influenced by 1960's Psychedelic art, around which is a border in the shape of a love-heart. This is a black-
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 0x31001a4280bb1bf41819a2ba791e4f5303a86cff60a630e4a4e64da1ca358cd9. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e4f45cc6-8d7e-46e0-beef-174c299fa174.json and https://artists.proofprofile.net/proofs/artist/e4f45cc6-8d7e-46e0-beef-174c299fa174.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).