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 0xda365204388ff26fdd7b3baf651ec83b4e2a2c7b11415db0d94aa2684e38e8ec. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a14b234d-b710-4878-ac55-c02af451e9af.json and https://artists.proofprofile.net/proofs/artist/a14b234d-b710-4878-ac55-c02af451e9af.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Best Progressive House, Trance & Melodic Techno (DJ Mix)
Best of Fall Progressive House, Trance & Melodic Techno (DJ Mix)
Ultimate Fall Progressive House, Trance & Melodic Techno #3 (DJ Mix)
Ultimate Progressive House, Trance & Melodic House Mix #4 (DJ Mix)
Best Winter Progressive House, Trance, Melodic - #5 (DJ Mix)
Best Progressive House, Trance & Deep Melodic Techno - #6 Midnight Dive (DJ Mix)
#7 Special Edition Extended Mix - Top Progressive House, Trance & Melodic House (DJ Mix)
#8 Special Edition - It's Drippy Release (DJ Mix)
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 0x8d2a3d89e5119a9004db9ba7edb1d14106b191c5bea8a3136a1b0232d0e22ed3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US83Z2526955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc641378e89e2d7a9f14e50f55de4b3b887d93a1e11e6bfbb0d32e671af18c0d0. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:46:44Z), 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/US83Z2528431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf87f6872def281cb94e21a847ee3ee50ea93b4c1751df79cecd0e611a2736c1. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/US83Z2528432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52d1b7f2931fb778c504b80bd2405a6a2d961df0e169887720f383c8bec0139. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US83Z2528433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ecae28495568bff2d0244641e315c9d807081b6ce51145fa326c402bd9abed. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/US83Z2546617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945697a9581912e338af2379430ecd9a64ef534e11c0343328cf951db394af37. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US83Z2557235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640588181656ea5cece264d63e67abfbb6664879161098ccb8e81da51c61fac9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US83Z2557236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c4ebdab8cfdcf5a75dbe1cf7a8d7bd799d11d44344a94a32c71f47eb6957ee. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US83Z2466755.