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 0x392c7da4e86f92c240207db8ea7dfb50eb05999f4271a4181024fa4f9f1299d3. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44157f73-d5bf-4ded-a43a-7f61604b007a.json and https://artists.proofprofile.net/proofs/artist/44157f73-d5bf-4ded-a43a-7f61604b007a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bad Sisters (Original Series Soundtrack)
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 0xee8433a764d507b31b32fe728e37efb64e9a8312bb541ea543723304248087cd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USHR12244025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e52d76e42b131da4db557bc5773b905be29f6f2294790a0c7a4a6f88d7aaa3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USHR12244254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20533684829938880df0a75bee5d63607e599941053e58d7d0dfe5f7da8c951. 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/USHR12244255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c8e3cf9bff40d11b04e41bccd9b5e4652d081ba43bd9846e4156c93f97228e. 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/USHR12244256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521b86d3599862cc25e15d5e40372be50981424970b4b65b322eb1f651d9997e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USHR12244257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f38025352a3d9d45ce3a36bf164304d805d07c0312122af1d5c35badc5e6e0. 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/USHR12244258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd775a9fa6fd0ca775fc7d1c165e34e888a209305de766630681c2d819ea7dd15. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USHR12244260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe724c76cde5c1b3c2f800e56b9dbd51e92a6ffbb73186fa9787ba5a61350d538. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/USHR12244261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5977f1a61e479448678357dba7d2d4dcc37113aea57b9932b9797fbd080cf47. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USHR12244262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0f3646a398a0b8c84aa03fa2df6ad19acccf657685c09e50d71df51aa67c3b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USHR12244265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8433a764d507b31b32fe728e37efb64e9a8312bb541ea543723304248087cd. 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/USHR12244025.
Becoming Elizabeth (Original Series Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b056e21449e81322561a796856d7ffb7897cf68485e8b9ac023228c5721982. 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/USLS52225002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeffcc6fb71a273e70601b19fd26af5d9b134b7dbb2ea9a373a74c80fa046daf6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USLS52225007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6788a092c1844a54eccff67b81dcf781a90c188ce8033dd401bf6e21a69dc546. 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/USLS52225008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22290523a36f920c8c6852f2e4dab182f0aac94c638d0bed3a3e17c3f7f6b05. 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/USLS52225014.
Shining Vale (Soundtrack from the Original Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489c543345bbdef3f6e2768bc50c95ca4540317e5dafb3d8b7d5ccbb962adf31. 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/USNLR2200488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ef1e744a169780825418729b5a9ae94e34b4b9719275aee98f1312fd0c1234. 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/USNLR2200496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4041884ab47e4e31953ee6de6b5f3354c2bb0341b89640b22a05a089830e6193. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZFZ22213949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb931a22ec875cfca53418067fe8599c72fc515e7cfbeb610019aff688abedd75. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZK6P2177785.
Bad Sisters (Season 2) [Original Series Soundtrack]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b3a19726fa70ef83faa88659963cbd9fc6275b96525938af4da315fcdecb04. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USHR12449288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67d521cc590d3b974d827fe495c804e5206e985ce71e53d1a6277355247996e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USHR12449289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6faffe46ed458715ec457a1890721b480a3f9e65a7bc15e9697d0074ea27c984. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USHR12449290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330a4b9fb7c325a8a76d4be94575360a76017479c5db5422efbb04158228807f. 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/USHR12449291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69114fd9272dd281c6adfa900f969cdc28fa08d27104fc5c37f36ce55d8a34e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USHR12449292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114dd701240bd0335ddb0211fdfcb90ba52a78f5a2360c33c1086622d5d2a193. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USHR12449293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3947c79cf41c11c8c83a1b70baa3f5f393702c2ba4fc51e15ddfe50b61d2b4. 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/USHR12449294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2392921f40b1faa15f23d2c9733616af6f292f9cec02030892194be1e3ee7bc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USHR12449295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb23d4a78d8cfd81cd36ebe867fccbd90802505d8b3b047f76506ac6fcd1f9d. 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/USHR12449296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4c373d2926531a998a2187822c3e998be956793e4b37ff3ab9fc519e15bdc6. 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/USHR12449297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe426c3571dce0d541d27e8e02874328b52aa9f3d80b623ddd4dc84e40a0d0002. 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/USHR12449298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af0e86a7e7cba7f8bc202c40fb7c94d117f5ac78e8f118916129c708e61f683. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USHR12449299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0a9e9fa5e4de4a4e187d70189528bc55b4bd45a8e8ee5cca4f17e198448a67. 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/USHR12449300.