Greymachine is an experimental music project founded in 2006. It is led by Godflesh and Jesu frontman Justin Broadrick. The act also features Isis frontman and guitarist Aaron Turner, Jesu bassist Dia
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 0x56a36752169837371799222ecc0cb26940dd6dd4768eb0baafe5354846db3409. Chain 2 (Bitcoin): anchored in block 953938 (2026-06-16T11:35:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/20798c0d-8ae6-499e-aef6-e1eaab1e569a.json and https://artists.proofprofile.net/proofs/artist/20798c0d-8ae6-499e-aef6-e1eaab1e569a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).