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 0xa48be24edc176c374226ec9286a83a65260f3527d9b9a405d0ecde36236e0659. 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/effe5793-af3d-4983-b3dc-d4ebd0ab8946.json and https://artists.proofprofile.net/proofs/artist/effe5793-af3d-4983-b3dc-d4ebd0ab8946.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 0x47a8a733b753cc6c8937024e0c6e453c0b6a44e61ad6e0eaab5be9322203d113. 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/CH6541960338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ad969ba5c43156832b4755f97951a580881f944ffc8b0c035dfa7fd887a1af. 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/CH6542082680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd119603c688f260c24755d2fd6466d493156b26573117a0f42badb3f4e5b107a. 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/CH6542082681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026ff08069047f464352ce7dd6fb8b506a0d717e7488ca9fa0ab59613d493ff5. 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/CH6542082682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7b12c942b83029c37659ef61016d2071b47c8ea478b5f23fe0ae942c7d585d. 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/CH6542082689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b61e1db27325fa15096e18005f7c42fd19510065b851a69184d3c0e8b8869c. 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/CH6542082684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eec05618f9ac4482348e8d061f318487600b5a2fbdef65d20d2e48e2ba5d1d2. 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/CH6542082685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e14002d5c8471fc9643e71b9a17e0313a711b6ea7d2c51b607dadf2f6069034. 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/CH6542082690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae525509d993130289067afbede5558f554f6cff35f70a202390181f0fbd914. 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/CH6542082686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x377931b80467f8d984499fd9c21fa48a217af21f1c0e519aadda257ed009e2db. 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/CH6542082687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf14d19c58579d9cec3b69427a5b45509dec1db7e75de7382611107251223c81. 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/CH6542082688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0dec58db5ec3cd1289d7a0890a4096a2b4ddd82e6009812262fa4e47bf58c7. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/CH6542145377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3739f4f0d70d5772457b6744697487960a0b991cc4bf5322d5541b70c1bda0a. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/CH6542145380.
Toutes les auberges du monde et de l'internet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6343f4447f1a4b17fb18a1b43f4a1e6dab2423be653ad5428b22caca6bf79e61. 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/CH6542145381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad5a24eb166f887eb6b0edfcef3a7974cdb0cdd206611a9f66d17492765446f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CH6542145382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749b6adae59152ae5dcfffcb93b77b5efd7532445a5d4b36548a5d5d397bf855. 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/NL7EN2200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0155335ec2d051d20d9cbaa22a3c8c77505853073363ec070f9895f17663f82c. 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/CH6542260066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb49ba0a3e77f9368db77ed35057b02b096262e6171d3524c55bee3553cfc2a6. 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/QMBZ92288971.
On veut plus d'océans - L’album de tous les dangers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d8d22a39d7c720cfe4f0f5571459631b0bcfd6c18bf117d236a25112d8faba. 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/QMBZ92288964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce804c555a2d2725a988a9e244414c35053d1aad511a068873c8d255ec48b23. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QMBZ92288965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38800409622b6b11618bef9216cd20824c47d06ecebabf733799c95bbfec3263. 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/QMBZ92288966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89019287b5a193d86ad61964f4f371382e1fbb48f0f2bb0b10969dee630774e. 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/QMBZ92288968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5854b58965b7e489194a50ef42130fff403861b74a21592bf9ef64332042e6b7. 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/QMBZ92288969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb49ba0a3e77f9368db77ed35057b02b096262e6171d3524c55bee3553cfc2a6. 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/QMBZ92288971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf157919ba9b38f8d73a474897cd0078eae86e342e51d52dda19d9473a3f4115a. 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/QMBZ92288973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf9e6a7acf068a4386714af85d9d737cab91e6e49f1c45d4d77ec07e06ade93. 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/QMBZ92288974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf54ec7020423dd7b784ac3607425661709a2be110231bf542dc969dd09ba3d. 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/QMBZ92288975.
On veut plus d’océans - L'album de tous les remixes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb5e5338843046ded45209a528c1856e224e37af66aad67e662d288d29da277. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T19:03:05Z), 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/CBAUX2201714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x279fb5cdcacb513864e717ee64ae3c22b34b25981ccb75d1c7074642686c4fd6. 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/CBAUX2201715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069eec6fb4e3b9384e518509b8e735d4839a82a65be3a73224bc81f9f0ed73d3. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/CBAUX2201717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47bb74017d7b5072082eb87e5e7aaae788de2c55d853b4a3b78686baa2bd0e17. 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/CBAUX2201713.
Voyage en Europe (STTRBSTN & Qriminal Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5a4c0c2681d5badf77f77206dd5d7a86f69557e19a405c7932da4a632ddb73. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/CH6542390791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc049156752e59d84aa97cb137309e263830daae6a4612a190e69624039ef0422. 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/CH6542404056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e90f9353f1d1d4c9f8191f9c74327aa3656000f281438ba20357a920ddac89e. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/CH6542404060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd6a37c777220baf3e8ec65fe9ecb74b175df689431671b997cc50211576f09. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/CH6542404063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf24c012646ed56df59cfd97491c9ef3385cdf7142b5832bccf3c923f27ebf69. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/CH6542404058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e63d02474387c901fd920961034ee23dc3ae5d62e81a343dad8f560296929b4. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/CH6542404057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b526c240ff8132b53354e72370c86f3e325fa731e2e12b6680c2598aa49236. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/CH6542404062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e2654027c813dea76f4a90cd7d88bdffebfdd4d3ecd3e54ad041b0c699fda5. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/CBAUX2201718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749b6adae59152ae5dcfffcb93b77b5efd7532445a5d4b36548a5d5d397bf855. 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/NL7EN2200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749b6adae59152ae5dcfffcb93b77b5efd7532445a5d4b36548a5d5d397bf855. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-21T19:07:42Z), 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/NL7EN2200025.