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 0x794116c6bef2031bd72735636fd2e0069e4d3f9d198adb2e79ecc8063985c65d. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e3738d52-3224-407f-9e2f-30db7428a0d9.json and https://artists.proofprofile.net/proofs/artist/e3738d52-3224-407f-9e2f-30db7428a0d9.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 0xb2559ff56a046cb7923937a302c49ce5649d886515e8f16c618fd2f675dcd6ac. 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/NLCK42229925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb048681286e2b47e54b39d6e53360e52510a50f4104e260f4ec1a4f7c7035c01. 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/NLCK42229926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9887c94f1efaaf304da32d15a3fbd53fde645d261f6c6ccec165d0abb7cef4. 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/NLCK42229927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebd40115e5f593a363e985aa868bff9a09351e42f0db88e478485ad053ab1fe. 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/NLCK41019653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56cf431945965e854900cf98b50678bceb910895e1f05a8542caa590aecb1c3. 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/NLCK41022181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b34302d18d30fdb78fdd08e25052fed889a3df06f0b25e609b6e7322fd9f272. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/NLCK41023181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb533ee100a420e466417aac337fb7ff9a98d390a93bbab02bcd6bf548b48298. 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/NLCK42227243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a89064817284d257a7773206ccdc93f933184975007fa337147db60b7f2749. 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/GBLV62034914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a586fd81b182a392333c6f8e7a916db3fe8e197651f8ad3c255d7fb81c7931d. 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/NLCK41402290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbec0dbd5ee24373819f4f2d2ea002114aa8698adbe89e3ebffa2ed8aae8072b. 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/NLCK41023970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998ef85d6bf3e889a3a69806969d9d9571e4e97f9bbd4834ae7201dbc5fee0e3. 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/NLCK41018287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb954b413727fccfe28e7da42e481174592fdc3ee5aa8bed955877b0d3a45f65e. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/NLCK41018283.
Full Force & Cows On Patrol Competition Winner
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3a9e350701c2b0b38fe67a5e2587c6a3fca2666ec0620a4537bd59ec31ba49. 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/NLCK41044810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd14b69d5e41da4478db26bff992e458ba8c873eaa2fa86e3792e7637bee94ec. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/NLCK41044811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5edb753a81c7c2b5c22dd9d792cb2a6185661189d310c87f9be19069df91c89. 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/NLCK41044814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc290357f2b5b54224340c0d7a4557ae3229da4a6d23d6b54edd78d1e5c862c00. 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/NLCK41044815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c0ac2273de7373b806f2c6412f8671b5fbe3e4c77a929ca9486cc397f93794. 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/NLCK41044816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de044e4b7c20b6598094493ca0c0c5d5b7534d4b4967d65dc2a903336918c9e. 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/NLCK41044817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0473ce11708603b72568c0356bf4082f8c0235b5b7066b135f4e33a932c0d57. 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/NLCK41044818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab13c13865c7dad468af8f86587e5b4f5f06b2fe52bdc0cc4e99d6f87ab959d. 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/NLCK41028149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95038f4494723cf365a506167cb278e02cd24af933cf89bce72e8cdecfba55d. 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/NLCK41028155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10dbaf83af0de3b9e80791bab324d4cff5b12b3c9d9a43b2d20f7ccf7ac9e942. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/NLCK41028150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb362eca08ec7bfe3f14f455480cf10bdda817d78b799c7ae0cfdac0a92c0815f. 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/USZUT1500067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd723bd5463c708e16f1f3755a1356d50d2ddce37d7b9f7c522c88c2e71859411. 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/USZUT1600120.
PRSPCT presents: The Nightmare That Is Christmas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6209f2a757d21bce64f04d370f22dace940305a0c2a16e3fdae55b0b4d41af. 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/NLCK42222354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400fe6ada0d8ffd1517bbbb6de4426e152f19787fea1d35643474cfbe40a16af. 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/USLZJ2348273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489cd3270720b9aa0f0c2c65447ea3139f1ceaeeaed2df75d82d3582294edadc. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USLZJ2348295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b9a44e3d46395f25446ac229a68cfe5891c71e09cd62efa5a53140f6eea4f0. 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/GBRKQ2056847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd08a7d845bba1d12a9f2f00a80b6b8a68999f9260b7dcdbe83fd170828bc211. 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/NLCK41025352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161cec614d7238541fa584a6e4b27e0904574b6464891b3e432105096d5843c6. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/NLCK41025350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b85e7a7a5187bca23728ede2bc9c50a1211b0a35759d060a27f64af9c8bea01. 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/USLZJ1838941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504b5a8a18cd615eac8fdc5a27a1d677a9d0d5f20ced64e0ffed976f08233fb5. 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/NLCK41027033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d803ed027b04426955c9fef5a3a3e06bf72ee35daad32df531225efe3f7a14. 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/NLCK41027035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f5ae8af765a52bdee3ff6b0b9bfbe98eece07efad13a8d2393b389698f8aae. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/NLCK41015408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52b724d1fd235909c19be8d73a5e06b1679ba6784ef7b4c1b44c4a90cd66f7e. 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/NLCK41015409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab76572c5c8bd14b0296e350c00883326b5645dd113ccb2ec9796c5e4953a96. 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/NLCK42218092.