Elyakum Shapirra (; 27 December 1926 – 3 February 2014) David Cummings, International Who’s Who in Music and Musicians Directory was an Israeli conductor who appeared in a number of countries. (His na
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 0xc328237fe32a83c28ee66e0c3a30e1160559c0290eed27087aa212c04979e4af. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e8bf6b3f-c37d-4a9a-bcfc-168a6ce9216e.json and https://artists.proofprofile.net/proofs/artist/e8bf6b3f-c37d-4a9a-bcfc-168a6ce9216e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).