Elza da Conceição Soares (née Gomes; 23 June 1930 – 20 January 2022), known professionally as Elza Soares (), was a Brazilian samba singer. In 1999, she was named Singer of the Millennium along with T
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 0xdd90c16e0dc4176620a2ba56d74745af074357cab9e8d7507c641432b9da4f87. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a0ca5f66-7c19-43f8-8456-d2454fd1194c.json and https://artists.proofprofile.net/proofs/artist/a0ca5f66-7c19-43f8-8456-d2454fd1194c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).