Sign Crushes Motorist is a musical project by Irish musician Liam McCay (born 28 February 2005). Originally from County Donegal, he is best known for releasing music under this pseudonym, though he ha
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 0x0286f70590209993874869c97445ec4490d381c8779578ede98649448f7f8cde. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/42c5073d-64d4-4a5b-9ec6-22644defaba2.json and https://artists.proofprofile.net/proofs/artist/42c5073d-64d4-4a5b-9ec6-22644defaba2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).