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 0x8eb85317a6affd476031536c9a28a5b1ede825d3716246c07e589a7ea49573a3. 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/d574e28d-e058-41ed-92ee-553738e478ec.json and https://artists.proofprofile.net/proofs/artist/d574e28d-e058-41ed-92ee-553738e478ec.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 0x6d9cde0c4df99b9e316dd19fce30682d3fa6c3b38c9aaa425a418f935a0ad34a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BEP010491396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b9a6b2a3e812c6c51ab4b11826a0318b1a072c97e994b89f0709b481b66fba. 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/BEP010491397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c795981efda6deaf812cafab66babdfd5bfe227afda4afb5c8723b85ead97e. 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/BEP010491398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a373e5d36780bcb834d0700b3e422ec1e0240fd8344327b76004efe12e2eeb. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/BEP010491399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0587ad87dfd29e976ea9302e6f1b4747c90babea0c5889a8a65c6f1be72264da. 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/BEP010491400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a55f8db49b365f5edbdfd1a45b679652a5c82a17d6ff524d97dcd26a50ddf90. 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/BEP010491401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801889a9109c70ed5e7a400f42d89bca646455a918318e5c28e6027d231bf263. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-21T21:47:30Z), 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/BEP010491402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c352068b5108cb4676cf2b3ef99f5be3f70552170eec76ce875f181c8b25376. 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/BEP010491403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649a507a9bc497fd68203f90dc869d248ba328e29af0e85b1f30f0435781f212. 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/BEP010491406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa958ec7e7eecf0941c237a2344c3eef11f27a57a23608b8bba2ebf558b0481. 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/BEP010491407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa66b95a667a13402865f3fd87ba88b5a083de279099fe071b8a2ebfb370644. 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/BEP010491409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b92c1d8ce3e357f238dd9ab213acbb7204028962284e1e0242bcb430f0d85a9. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBUR62000301.
Rock to the Beat - Special Request Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210351be0c0d420fbb73c1d4c8dedb21230aebe8859c9148ffd57974d546f339. 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/GBUR62000302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba2daa3a19c57a81ab95f2b25b700aa26c6ecc634513600438707bc63f05477. 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/GBUR62000303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96feffb02bfd6fe28b4d01e1235d1a0ca8d735f6599244dec187ee9fdd9ce836. 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/GBUR62000304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dae5457779f61444ff66e0c71b8398dfd6a76fc5fa81981110edfcb0b795846. 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/GBUR62000306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5133f980f175b16cc670c2faea51f7d155515f23c716d5632753c6fb3a27a44. 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/GBUR62000318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf195abe84d07f5c151f2647646eb75718cf9d0dfaf05f48ead14550948688c50. 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/GBUR62000312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b89120c66221c76eea2f00464912c81050fe724c1e58861e5f47fb1ef620c3. 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/NL8RL2501071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7405de9a2f85198e6f4d082aa6f5724a03ad29392b23a6911aa91a1c4ac747c6. 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/NL8RL2463323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d1e5930f21434f10ff31143ce3c1e4bccf31d803a3da7e0bf7f07b806c57d8. 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/NL8RL2438021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe775d532b480aff06be2ab4253778125ea2c59d0b5e95ac735ee588d788d4c29. 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/NL8RL2506303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5bc43b2cdce1204afa571b17c16dcd6420d5182f7ee78ba87361146e51a345. 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/NL8RL2506302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1c36608d22a7fc7801f6d3621452cf9b7684bc2eb36ee311d35edb0277bd97. 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/NL8RL2454020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c10a88aa02a6c9517d80b7c1471398a2ec9b52fa8bd28bef0a53bc45332a3f. 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/NL8RL2454019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c10a88aa02a6c9517d80b7c1471398a2ec9b52fa8bd28bef0a53bc45332a3f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NL8RL2454019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1c36608d22a7fc7801f6d3621452cf9b7684bc2eb36ee311d35edb0277bd97. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NL8RL2454020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd54f29bb397927de44d86a6f4655d2404ba12f6c3f1943432b36261abbaade. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NL8RL2454021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26bafe8919ba35392ab0ab57b8720781e782ebad2e28550e479646d6f5605c0. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/NL8RL2454022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9959b55f75686452eb91222d0a282045e5b686f07efface4bb01c5a4e878cb7. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/NL8RL2454024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad2baedfb71dbba3407e6c9e59fb4d4d0d30a5239621c057fe35ff7613241b85. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:55:26Z), 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/NL8RL2454025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2666dea370eaa652e6442d562765e057586cf237b0f2268131af615988dec9de. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:01:17Z), 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/NL8RL2454026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff132ec6dcd0d2ba9ca1fdd2bc41ee8a2315d49546acb094f9180ab479ab951d. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:56:58Z), 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/NL8RL2454029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9e7fc5586c23ece06be1b0902a7887b787ef1d34b5a9362a6f6d79c047e16d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/NL8RL2454032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd5766219af471c7b17c9afe744c703c90e8f75f936d963d8df2580dc3236a1. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NLF711703290.