Deidre McCalla is an American singer-songwriter from New York City. McCalla was raised around the folk music scene of Macdougal Street in New York, where she began her career. In 1983, she moved to no
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 0x66672ee641b7f4f6fc140f758e9c0a5ddd24ee5913b8ea8afe6c8f74a11ee3e4. Chain 2 (Bitcoin): anchored in block 953911 (2026-06-16T08:03:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17fbb18e-6ab5-4721-bb0e-73893325542a.json and https://artists.proofprofile.net/proofs/artist/17fbb18e-6ab5-4721-bb0e-73893325542a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).