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 0x0073dedc7f0f879c0907f51fc4b5c18637d99b5fb8e3ec620e57a27b4865ff70. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c03d99fe-eeed-4e06-9855-ea74f2217018.json and https://artists.proofprofile.net/proofs/artist/c03d99fe-eeed-4e06-9855-ea74f2217018.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Celtic Dream - Celtic Spa Music for Relaxation meditation Massage and Yoga Relaxing Music for Stress Relief
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac635aedbae7b88ed1132e93b971811ebcb7ad44edd94f72206165c207af967. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/ITO101114696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8b61d79bc5b98dd1086285096d6e20232abe83c1b6ab3a68634a4736148e0e. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:13:43Z), 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/ITO101114700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9a3489bca39ff5e13704f99041e52125337963c039f17126762962bd513847. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/ITO101114706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a829a7bb68ec30348b6c2050c02c6adcbe646316e47c0822aadc1175e4118d5. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:05:30Z), 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/ITO101114727.
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