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 0xc4d24dc8561b8d4871d8ae45516c9c4667684495102a6ca2675e73df5803d93e. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/49fb8213-0844-4446-b6d2-db49daecfaf0.json and https://artists.proofprofile.net/proofs/artist/49fb8213-0844-4446-b6d2-db49daecfaf0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Death's Door: Aftermath (Original Soundtrack)
Death's Door: The End (Original Sountrack)
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 0x29384b7695d6ba65a731130718e93702f599182d08fe42e5b6c276a92e20cc9d. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZFZ62007214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22d4e9b80020b3412d64cd9b322e6cabcfbfbd3d6243df43ccbe71a8a1269cd. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZES92043759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26292c9cf3dbeac58f7421d28684c181ce0e7816a219ba51eb1f90306cbb5793. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZES92043760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4eca8c1e531fb7371e1b761b44c0dd9aa4910bd200e9af999282da013b4a424. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZES92043763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754b161b62491bf92950649bee8570cdd161f9b2cf7dbb8b7bed5dccaf55afd7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZES92043764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0bb8d3bb108ae2eb065507849ad54d0be0de75d3f102c946aac417adc88a76. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZES92043767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c7bed79131c341cfe4f1fe794c881c14a1a709dfac359534793f945cb71907. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZES92043769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734f565f03113191beb7a7061a96fc2007b4a9404b2156b5022e04045884e5ef. 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/QZES92043770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d827d0568bfde27373b947ba19b09f9bea909e2da4ad1d34a1f41ff2b1ed0e. 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/QZES92043781.
Monster Train: Friends & Foes (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d61c52f082d1af3e8fe01006545cd26791c160917f05288570795f850729689. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZNWU2097059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd0da9b47dbd6b2a1ecc0569e7e8111206e8227478dd4091a08b98bbabe539c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZNWZ2596514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af9c95fa55e558485eaa087de60eebf95be6e56029489f8989919caea756933. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZNWZ2596515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886dd2e89edf81d49d7933c07516ded807c2d3fc2ebf9a501a8915d45a4fb2ad. 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/QZNWZ2596516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf16dff0d2dfef1a9dd3ac8a1af2a843d8873f0a1c51c71309099399d64f78b. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/QZNWZ2596517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1434d178cd25a4b36199bd526c4de22350666ac23bab42cc6cc92b33e4adad16. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/QZNWZ2596518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b766b80991f7e3890d4521a8b35210418aed17025d2aa1dbbe59ecf1520ef4. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZNWZ2596519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bfeca70d67f8135fdb4d7c51ac6eee7ca06043da54a3140d5c7c2dcfff66f6. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/QZNWZ2596520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773eb4e924dd53ba463e9e2de208ef5d2822f19a0c7d2d5ad0ed73f7a2e22335. 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/QZNWZ2596522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9b0221aad91f287cde7f226abe6ee53836d0f07ad74912e4307ddd106c7847. 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/QZNWZ2596524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc523e4e62c9cff2cdc05e6260a991a0b286b174c875775877a4958ac54678b. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/QZNWZ2596525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85ab5ebbc892c2ef426f70d68de540edd4953f26a9701ce9d25a2b94fdcbdb1. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZNWZ2596527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a94654c229cda9d0e4e0869d44d70044b0eef7e10c46a8078c3eeb6215277a7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZNWZ2596528.
Monster Train 2: Echoes from the Void (Original Soundtrack)
Sounds of the IOverse, Vol. 1 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03222c9b1e2716749ac8963d95a86f790c2fe77ee0cd5039361b0790ac1f1386. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/QZMEQ2257551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be1f9d027628ef1d037ed2682ebaad383feae4bbf498b8061b3138d8ce911ca. 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/QZMEQ2257556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5852736a72a7bfa3a183e9046b3fde68b3cc51a0edebe304d864727e9cf708d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZMEQ2257557.