Selma may refer to: Places In the United States Selma, Alabama, city in Dallas County, best known for the Selma to Montgomery marches Selma, Arkansas Selma, California, city in Fresno County Selma
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4adb80a21b0449f95c096605adb8318bad8f37538aefc9b007b38ea7decc42. Chain 2 (Bitcoin): anchored in block 954046 (2026-06-17T04:53:03Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/413d2c1e-ad5c-4324-a7ee-4630c1b77745.json and https://artists.proofprofile.net/proofs/artist/413d2c1e-ad5c-4324-a7ee-4630c1b77745.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).