Dolly Rathebe (OIS) (2 April 1928 – 16 September 2004)Shola Adenekan, "Dolly Rathebe - South Africa's first internationally renowned black diva", The Guardian, 28 September 2004. was a South African m
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 0x2949ed86e41a6ffb0ba4e0ed8598331dfbb99e48c613b0def46dc882911092f2. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c3491f6d-6403-4561-af86-a90e7601f5d8.json and https://artists.proofprofile.net/proofs/artist/c3491f6d-6403-4561-af86-a90e7601f5d8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).