Royal Opera House Orchestra at Covent Garden
{"copyright_id":"0xb307023e77515188a66ebe2215b72aeef0f2b74dde9f60a6cf4449ef893dc52e","name":"Royal Opera House Orchestra at Covent Garden","registered_at":"2026-06-16T04:29:27Z","symbol":"NIM0937727","token_address":"0x3e9c7ee47086acc6ff9d55f2768a71d13410e4ad","type":"artist","uuid":"2a17baf9-8b3a-4b97-b015-df18ce577ef9"}
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 0xb307023e77515188a66ebe2215b72aeef0f2b74dde9f60a6cf4449ef893dc52e. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2a17baf9-8b3a-4b97-b015-df18ce577ef9.json and https://artists.proofprofile.net/proofs/artist/2a17baf9-8b3a-4b97-b015-df18ce577ef9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jussi Björling Collection, Vol. 4: Opera Arias & Duets (Recordings 1945-1951)
Lauritz Melchior, The King Size Hero, Vol. 7 (Recordings 1929-1932)
Lauritz Melchior, The King Size Hero, Vol. 6 (Recordings 1929-1941)
Lauritz Melchior, The King Size Hero, Vol. 5 (Recordings 1925-1938)
Richard Strauss: Der Rosenkavalier, Op. 59, TrV 227 (Live)
Gluck: Alceste, Wq. 44 (Sung in French) [Live Recordings 1981]
La traviata: Act II: Amami, Alfredo (Violetta, Alfredo)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x03a198cea43ef81f02bb2a4b373766ccc075fd6f309eecdb60e88ca3640e473a. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1088530.