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 0xaa5c166e7d913cea4c01b0c70cbc095ec389047026c8d3ca9b59f8d98d647ec6. 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/fbea995a-2f19-4e70-bc6c-b22056babf70.json and https://artists.proofprofile.net/proofs/artist/fbea995a-2f19-4e70-bc6c-b22056babf70.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 0x9a70c1d89d4c1d8dc2a41aedc14f0139db87f3685f70f90bf06693d60a1095cf. 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/AR18A1300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfffd1e81980d7cd5f82f937ed256fb43542f275b1d5e4e9ec53dade1336764. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/AR18A1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac04197f961b32aee6b9432d2585ce049561c9ea6ed31a681aa497742f0d83d0. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:23:44Z), 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/AR18A1300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc539b7af2ab144806b6f5f85b1df3769604a1f4d33e008460f2ea237eefed675. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:35:04Z), 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/AR18A1300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfffd1e81980d7cd5f82f937ed256fb43542f275b1d5e4e9ec53dade1336764. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/AR18A1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac04197f961b32aee6b9432d2585ce049561c9ea6ed31a681aa497742f0d83d0. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:04:42Z), 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/AR18A1300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc539b7af2ab144806b6f5f85b1df3769604a1f4d33e008460f2ea237eefed675. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/AR18A1300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841ddd53394bdcdb515b07ac1d69c4e051b7ebd3eed03ca061fdc25189982450. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/AR18A1400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502f9292626ec003a54e1c4db9147fe3abd49eecee5da812389fd5283ec53d00. 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/AR18A1400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ff1db4b92c3ab01e9397204e5123ace2df2f3a118befcc71cfa0104ecad544. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/AR18A1400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841ddd53394bdcdb515b07ac1d69c4e051b7ebd3eed03ca061fdc25189982450. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/AR18A1400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502f9292626ec003a54e1c4db9147fe3abd49eecee5da812389fd5283ec53d00. 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/AR18A1400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6338ba5fdc5c6a4ec8f58b51c6fecdd873c351836f9df5909d6b8ebc374ab929. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/AR18A1400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6338ba5fdc5c6a4ec8f58b51c6fecdd873c351836f9df5909d6b8ebc374ab929. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/AR18A1400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db6f27a165f1d4aba05064f4790cb16a7c9500ed793210dc8dad30d23119c77. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/AR18A1400063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644586966f22a7bec93744fe14c0a11839d71532c0e9da870dae1223f9a95dad. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T10:51:56Z), 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/AR18A1500077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2298c6481cb9c9bb5e0f8afafde93ab9a4606899319a78b02f4997986d74f1. 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/AR18A1500083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2298c6481cb9c9bb5e0f8afafde93ab9a4606899319a78b02f4997986d74f1. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/AR18A1500083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7a84b8431392817f48fb8a16f7dac4c241f0ae312772ae2d0c3aa814e22c83. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/AR18A1700102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2027acaa4b59b9a49b1ee1307fd6900c9b7f8a4bc77ab019eddce7aaf2fd10. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/AR18A1700105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74daadbddc153314cb2b2c5e0b5908408add78b06a6e64191203a6dd70acc8f9. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/AR18A1700110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1437c0d793f98f912889b62cfb64a15c5b4b2ed87aca386d282c38c07d0692b9. 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/AR18A1700113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7a84b8431392817f48fb8a16f7dac4c241f0ae312772ae2d0c3aa814e22c83. 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/AR18A1700102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2027acaa4b59b9a49b1ee1307fd6900c9b7f8a4bc77ab019eddce7aaf2fd10. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:02:23Z), 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/AR18A1700105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74daadbddc153314cb2b2c5e0b5908408add78b06a6e64191203a6dd70acc8f9. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/AR18A1700110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1437c0d793f98f912889b62cfb64a15c5b4b2ed87aca386d282c38c07d0692b9. 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/AR18A1700113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430e27d462dac77bf4d7c58c788c077791050d4e2722248221211b61eee23ce9. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ARIXB2103068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430e27d462dac77bf4d7c58c788c077791050d4e2722248221211b61eee23ce9. 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/ARIXB2103068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60b1722b985453309b8d6ffae9afeb16c2ae5251d1a9e42fe8191d44ab583eb. 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/ARIXB2103060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60b1722b985453309b8d6ffae9afeb16c2ae5251d1a9e42fe8191d44ab583eb. 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/ARIXB2103060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc40dd3c3883223bd444d391794d0cc455541523f119befa6bb75711d1586202. 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/ARIXB2104317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d055ede69686fc3a607d9af1ae2a2abd47bfae86ec97546c3076f83b78bd1e0. 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/AR18A2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c5824c2edbf3be3ff04a7a6e216ec9a49435fc68614b55e4fdf4fc49aec8c8. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/AR18A2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1325fc82bee9acd425735bd6044d82f8452d09803edbc9172768f4159defb524. 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/AR18A2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931338b61e0456c739ee041bafa8e98b79814e0d8c4f7af18d8c9df2fda6388d. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/AR18A2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab8ad7840e0e0ab552e6651f2a65826671f8ce099fe5b6ffdb9657f40d166d0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/AR18A2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1b782a37e675633c66a918c9129bfa90a3387f5b2f479dea1bcdaad958d408. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/AR18A2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1325fc82bee9acd425735bd6044d82f8452d09803edbc9172768f4159defb524. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:13:38Z), 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/AR18A2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8575e9b8faa2a3ec8beb21ebbbd0c09cc2b7d1df24d15764e7077c848d1ad0f6. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/AR18A2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1425b19829e123a959148b6a957e9372bc409a3bffae54a25658fb10872689d2. 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/AR18A2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadeee626ae024e5a5f009310bd9f55c2911e96f9ab23a163c7b94ada9e38fa30. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:16:39Z), 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/AR18A2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1a5211391c295937f3df60f0c497b7ce607ab44187fd718258affabf9c237c. 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/AR18A2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268a38350a5fdb028fc7053dfa584353ef6d2d827b1817fdb309a7620f0cf59c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/AR18A2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682b4715ec543e0ea056bf53bfba850ead7b41f248ccac70228fa07228be7286. 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/AR18A2300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadeee626ae024e5a5f009310bd9f55c2911e96f9ab23a163c7b94ada9e38fa30. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T10:18:12Z), 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/AR18A2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1a5211391c295937f3df60f0c497b7ce607ab44187fd718258affabf9c237c. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/AR18A2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268a38350a5fdb028fc7053dfa584353ef6d2d827b1817fdb309a7620f0cf59c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/AR18A2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682b4715ec543e0ea056bf53bfba850ead7b41f248ccac70228fa07228be7286. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/AR18A2300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb32df376b1d0e030beed16af43e88ca427b4fd91df14a6142759fc00f54288. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:32:04Z), 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/AR18A2400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b4607ced5b6a8e69e9c1de2b81be5fc6e0fcc75be102b0fd864c451589dc98. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/AR18A2400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44938b157e4f4c4e773eb26ff1efeb2b363420e93ad2af0cf1c4c4da6a6326a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/AR18A2500001.
El Tano Romero / El Show De La Monada Musical #4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266c3b9c2ac47a4266eb6ba9d64fa7ffadf1db6edd83f20066e6a259254cc862. 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/AR18A2400063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7172153b3434dd86a464d6ad9d145d6866e46d9a76e779c2ef5e4a80f06eb686. 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/AR18A2400067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd545365f6479adeeac2252e0088e2bd6c09e2ff13a0de9611ffcd7f7ae5c4ff2. 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/AR18A2400072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a1c082cfcee34e135f582f3ec8fe7768ebc293f7bec2d25a7675475e0d12d3. 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/AR18A2400073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb29f0521911c35e95d64ebf5addd78b5a7dc6a1960ed81b0adfc5a96764fb7b. 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/AR18A2400076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e3b9b6cddc8d8c3a2b45b5fe9f45161a5cb2a9ca7454a34d021b91dcea52ee. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/AR18A2400064.
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 0x64f3840116e977d6a0129eddeae41b0f77e78393e2981141ba0717dd11fb96f8. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/AR18A2400065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878ae105650cee68563bde58c5f49725e955fd842556a88af2049236d45fe7a6. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/AR18A2400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418d23b2010e1cc502cf384f2e6d54d509e8f4aee96d280b36b28cfa483ba5a2. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/AR18A2400068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184ea0102dd7c0d6ce27a325356a6ac098654ae4b9641f982044d3a5a6a0c2ae. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/AR18A2400069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7148ac3716265e7d21680838dd21466600ded209904eab0b5a2f089aafc983f1. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/AR18A2400070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e5e76b54b9f3f9a0cdbd250c77ae1f20012e1a3a7cc872505b66969c362f36. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/AR18A2400071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f954e42371ac231243e6717d5b608efdd7cd2afe8ce4123008382bca14488f3. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/AR18A2400074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4dd8d03d7aef3f6f4119283bfea05b6eb4725e3b50c839b1ec0df3bbcd0a19. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/AR18A2400075.