right|thumb|300px Olle Gällmo (born 26 June 1966) is a Swedish musician and riksspelman,Upsala Nya Tidning 8 juli 2008 known for his work in playing and promoting the säckpipa, or traditional Swedis
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9b03716af1db8992001c2846a9c1095a1a72cd5f92edddbf7feb0298e80cea. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8d74f9c8-f3d9-4fc9-b2b3-13d4e17894de.json and https://artists.proofprofile.net/proofs/artist/8d74f9c8-f3d9-4fc9-b2b3-13d4e17894de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).