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 0x2230e66fa3963233e3bdf2b9a19a98331375661b0f746e3bd51fef7c84d70b70. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e434e0f4-f5da-4083-baf0-9cc75b44e29e.json and https://artists.proofprofile.net/proofs/artist/e434e0f4-f5da-4083-baf0-9cc75b44e29e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Rains Of Castamere (Extended Version)
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 0xda5228e54693a6db54092d8b5914610c9cf89b47680e697e7b44b75e7a8325db. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/SE6XY2177432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da843fd67223f4942298c4ff7a5f7ff0c68ad9aa24db9d5ae298ecf804d0beb. 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/SE6HN2203250.
Book of Zeal, Vol. 2 (2022 Remastered Version)
Each Must Die Someday - 2022 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5228e54693a6db54092d8b5914610c9cf89b47680e697e7b44b75e7a8325db. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/SE6XY2177432.
Wild Mountain Thyme - 2022 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629c35af960eed63b0c771655db99ada621de5fc50abbab42349ef336f585b78. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T13:26:15Z), 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/QZPJ32125306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00024f2f11e3981adf8346b96b9942f9c72cbb4af87d6ffda09ddef95e93a205. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/SE6XY2241409.
The Ent & The Entwife (Instrumental Version)
Lament For Severus (Instrumental Version)
The Rains of Castamere (Instrumental Version)
The Rains of Castamere - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42307818a4cd7f5bb591bf00bad6660cfd18b40770991e1d5522ed90f9d304de. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SE66N2213758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566c86927badf2d6b409737a96e14c844a8fd5a0ea520882d7c843f6dec88fa1. 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/SE66N2213763.
My Mother Told Me (Instrumental Version)
Each Must Die Someday (Instrumental Version)
Each Must Die Someday - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6bca040d9f7084ddc9e61d46504c412f7f76dca596ebe8b7d77e5f7e260251. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/SE66N2217038.
Space Engineers : Space Guardians (Instrumental Version)
Book of Zeal, Vol. 3 (2023 Remastered Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7f7e7331392359a961345ed59298516603877372ff41249017ceffb9cea17e. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/SE6XY2345937.
Down By The River (from "Baldur's Gate 3")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40795f41a59d55992b8c0233fe1617da068bd83fb1c424a284e2c193fd57b846. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/SE6QE2485621.
Book of Zeal, Vol. 4 (2024 Remastered Version)
De Bokkenrijders - 2024 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ff960b5ebabaf5bd95281c4151f9d9a36d4357341e52b090168a70c6d1cc78. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/SE6SA2470082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369817287122f0875d67d3214ef08ce2a74f10850c9d36767c484cb54742211b. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/SE5BU2504734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5568774b55d0d8ce98a31690c15a7edd620b5f206162d2f1aaee47f7669e61d3. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/SE6XX2525940.