Brother John Sellers (May 27, 1924, Clarksdale, Mississippi, United States – March 27, 1999, Manhattan) was an American gospel and folk singer. Sellers played in gospel tent shows while young. He was
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 0x75002ade07563e22fe09db7e4c9df98042829d5ddb12c304774538a7a838f30f. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c60a6b4d-df74-424d-8f90-9cee4b39cbfe.json and https://artists.proofprofile.net/proofs/artist/c60a6b4d-df74-424d-8f90-9cee4b39cbfe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hand's Off (feat. Guy Lafitte) [Mono Version]