Parkas was a Canadian pop music band based in London, Ontario and later Toronto."Parkas: Now This Is Fighting". AllMusic Review by Gregory McIntosh Members were drummer Greg Rhyno, bassist/keyboard pl
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 0x2e850ec2d45fbc94ab3d7b9587175a0e58175144f07d44f8f55d9ef3a372b725. Chain 2 (Bitcoin): anchored in block 953984 (2026-06-16T18:08:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d05f4fe-7b40-4f28-9ebb-4fdc81808ab5.json and https://artists.proofprofile.net/proofs/artist/2d05f4fe-7b40-4f28-9ebb-4fdc81808ab5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).