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 0x4416344b1448a728667af8442cb3cf1ae01d88139873c6a2c4496ee109167c54. 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/0deaa3d8-a5d4-46ad-ac93-d4c24a937e80.json and https://artists.proofprofile.net/proofs/artist/0deaa3d8-a5d4-46ad-ac93-d4c24a937e80.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 0x49441864e4171054fe567f22a0300e8996fc3963caeaf5164069470a6739766b. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:25:19Z), 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/QM4TW1922330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa172f9a7169da5da7d4846a35722fb9246e06bf653d287db82ef8d1c3a153cf8. 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/DKABA1400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ffdfa85d6bb5d9cd7204bbbfc3dba4ea0f1eff7d61b161a3c6ab431a9f20d07. 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/DKABA1101997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4651b64f1a2a229195240eb5ef4f36bc509f43df7bc5c90d8e5c0e264e4367bd. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/DKABA1102760.
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 0x55b5f18caa6cb8d40e4a3b66d55ea75dc4e3c9b52747c2564a9c7c5f5c6362a4. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DKABA1100597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7457e82f97cad1566f3fb33c232bd9e9124655f7546e028e75afe6124553777b. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/DKABA1100604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d48f74e71b6949adc7d6e83f177551e5ae08d2b6dea3585221f5cae314617b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DKABA1100611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4856e37591661acfb853bc5df57112ec0f159c647a153c5220571e3f27e673. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:35:20Z), 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/DKABA1100613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3cb8f0349a971ec595ad347cd6a234b4ade31fadc441b0c10304de2ce0b27e0. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DKBKA0500200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef9b26b53ff8a52cc16f6e40e5579a963599b60ff01f589cd364b32401a72ad3. 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/DKFD50753107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474c89821d524f01c72fdba69e81a8eb01e34a6f653b6cd9df67b8364a6dc093. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DKFD50753105.
Flåklypa Grand Prix (Original Soundtrack)
Pinchcliffe Grand Prix (Original Soundtrack)
Pinchcliffe Grand Prix (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7979a6d386807ca52cfae1fcd77fb2e65209f2bd601699d0b0b0e6b8e2d88e. Chain 2 (Bitcoin): anchored in block 957961 (2026-07-14T05:58:47Z), 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/DK1J31500907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d016304f2329f725ee0996d6c27c94d44b6fc4eb84df70fabbd22b39f42dc3. 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/DK1J31500908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484455a483e17c361c786225ebc02bd97413bae5ad47bee4ecc4197953971d1f. 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/DK1J31500911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e752d0906ce381df2f26758b6bbd902fdc67aef1690162b71cb4c6a4e9879c5. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T01:01:38Z), 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/DK1J31500912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f69f6f0dcbeadb1c3c631b7bc85f5db44029233556ed6321d9a59017714c687. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DK1J31500913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae66fd10bc3378dfaa9a73da22a07ebf29a2f712e2cd231ecd91063b3bfe2a72. Chain 2 (Bitcoin): anchored in block 957827 (2026-07-13T08:59:54Z), 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/DK1J31500916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904953c67de0d24639fdfc5e905b6d140c02a9381e37c7011d273b7d0a618baf. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/DK1J31500918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528b05b5d12e9ffa5a25b5087a3310f386fe9a25189487ca554770626eac0bb0. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DK1J31500919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a1acbeb57262d30d9d565562bfca7da216fb948cf5aafcbad697fc0fb4d0a9. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DK1J31500920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc5930971550c5e32c6b75804269eb7aa9168f015af9e249bff87b590f74be1. 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/DK1J31500921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe989e87821badb89bfe4be1f8ccfac39e7d145383318b5e0f46f8cdd89e3fe5e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DK1J31500925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39191d41bf72abe9003a466ae73679a7da441322188e9313515b85050067746. 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/QM6MZ1839694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df990e418077551fda968728cdba592e17074d59c5dd127056d46216b051000. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QM6P41802029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58f074b5ee8952b9a027b3cd9cff66128930b4292ef0a34e8d51775d82d36d1. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T08:35:00Z), 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/QM6P41802036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aeeedfb06116305f89546fadee232a105cf8fab46fe849c71574c1160442414. 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/QM6P41802043.
Ballade på Christianshavn - Filmmusik Vol. 1 (Original Score)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe719dcd1becb170c4a344c3c2de0653c4610ed34cc683bb88e64d4ea21420dd6. 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/DK1J32500201.
Hændeligt Uheld - Filmmusik Vol. 2 (Original Score)