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 0xf9b4d564d95ed4653e6d52f336e6031af0f3a18d7e3f702eea57d10e1e1c3f3b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/323ab8bb-8c5d-47c4-933e-46b469e8619e.json and https://artists.proofprofile.net/proofs/artist/323ab8bb-8c5d-47c4-933e-46b469e8619e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xcf6309d039cb5eb9b867c8bfa12958aea225de305d75150b1fca904536f3684c. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QMUDV2400723.
100 Hits Remixed (The Best of 70s, 80s and 90s Hits)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0a43423237e46489523d0338cb82bc58c89f64deda1041ccd2204799c57693. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR6V81342376.
Miami Lounge Summer 2014 (Sexy, Sensual, Essential Chillout Music to Relax)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f65e2e8b9a7c0c7445cd4e14842c593cd3287f6786e08b6bdd8c4f9ebd50bc. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/FR6V82472416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a7e5a9a8ab90bb819c6d1d974f6e847ec81c9767b0a54ec177bba90c87f0ee. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR6V82472421.
Best of Aqua Gym 128 BPM Pop Hits Workout Collection (15 Tracks Non-Stop Mixed Compilation for Fitness & Workout - 128 BPM / 32 Count)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c455b7334f64f7ec554d839e87ae7b44500730eedb13106bc31397c6f606da3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITC941822199.
Colors of the Wind (Pocahontas Soundtrack - Fitness Version 130 BPM
Red Carpet the Greatest Movement (Mixed Compilation for Fitness & Workout - 128/132 BPM - 32 Count - Ideal for Mid-Tempo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd0fca8b50f3bacb3ecc6cb64c1187cd261f6fefbaaea1a89147093e2b86bcb. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/ITC941910433.
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