Kevin Drew (born September 9, 1976) is a Canadian musician and songwriter who, together with Brendan Canning, founded the expansive Toronto baroque-pop collective Broken Social Scene. He was also part
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 0x5461bb8f1b23d79b431a26aa550dbdd9b667ccb5f2af821c1f1404733f5a190f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5e8e1114-074a-4ec7-859e-a8195e1aedf9.json and https://artists.proofprofile.net/proofs/artist/5e8e1114-074a-4ec7-859e-a8195e1aedf9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).