Carmen Smith may refer to: Carmen Smith-Brown (born 1943), Jamaican sprinter Carmen Giménez Smith (born 1971), American poet Carmen Smith (singer) (born 1984), Australian singer-songwriter Carmen
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 0x3f972aeb075147a8eb5cc0b804416643fb3754a75f5a8570cc017f200321d46d. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8832ef99-d93d-4fc5-9dfc-76f2039800c2.json and https://artists.proofprofile.net/proofs/artist/8832ef99-d93d-4fc5-9dfc-76f2039800c2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
How Come You Don't Call Me (The Voice Performance)