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 0xd50d40991a25b04d700d8760fe67c46586cd1ff7c3626e24dc2949d7dc7b9bcf. 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/65a0aead-4069-42df-9dc3-4cfe3870d2c1.json and https://artists.proofprofile.net/proofs/artist/65a0aead-4069-42df-9dc3-4cfe3870d2c1.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 0x380e111da9456725b6f7bb122de591a193b1de4337d547a5fb995414c97193bd. 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/BK4DA2307354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625b120ace6042d04b8b5ab655f4bc24e6443ded5fa3997c2aa04e1340167851. 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/ES65E2200127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe946e8b75733fca49c734dab8df5837d89b72444f6d47d09124b49b69440ac88. 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/ES71G2337380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b288378ce58a9345602a93afb625e138edbb692736f44b4ba18759d5c85045. 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/ES71G2335379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370bfc46604c345d7921afbcb8b62bf387b04093d4e462f2d6ee30ed93163ac7. 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/ES71G2331372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcebfa6336165cf612fa29626b31ddcf77fee8792ed11e9f0c43fd2e4d51de04. 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/ES71G2329579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9adc72c97c31d36f71d11fc7166d031c87b73575c9c39c735a91bdabe8f0ad96. 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/ES71G2323223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc862d03f4799255309fbc56b0f9bcdacc67b8981a13e159e4c4a6e53b2e2df40. 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/ES71G2301202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20d0a4a3386c9f1a4e9a293c30400e9e4a72c791a4cae181362b656aa08d9e8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G2305207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62a1aee70ca3e9816fd11e7437743ab1820c10a87b1dfc895d5600158c835ab. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G2303375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ec71c63106fb82d4ee9f6873c2c496bb7f11b93c87ac612570e2f73ec8d9e1. 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/ES64E2204180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d25a1432592fd8d86d8aa41c88d53531139b28a382655984838f0b762a8a7ef. 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/ES64E2204182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21a499ccfabd48ea3f29fe7f2be6dc0a02afc89a2664eb5b8bfd1125869331c. 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/QM4TX2123114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe956aa5c0a750de1692b6807a58ec1a7f0a4b6952d574ba1536858c0af4bfb. 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/ES71G2402284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149b0fe8aae3e9356ab246c212f8e9b1f95c4c89bc6898e1500c487af82c1618. 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/ES71G2415533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1955dd1afc95f82161107ba9ee6341d888c1c02776f2fca4387b2dfde78ee2b6. 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/ES71G2415534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c248d7eda7496091b6475af2b1524f077d28540dc6ea282d230268fea872375. 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/ES71G2415535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d3f145143f2c93d833e213246f9460ec81168774412d98737aa2ed61251703. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES71G2415536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b1ffdd5e66b444ac5559ee500f0ea43c4b9f3e435b641655b7eec930e7c2bf. 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/ES71G2415537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc8db560658679491dc4a726bede6f126a4f3276f041ba46c9cb34ba58d2f27. 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/ES71G2415538.
FREESTYLE 1: MÚSICA TRISTE PA’ LA FELICIDAD
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f56216efaa5731ff927d6fcf616abdbc7cca92d8b755d6126099468846b53c9. 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/ES71G2412583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18295bdae340be56e23a93d57a8790bc6cfaf1455ea7d92b4ddd16b204eab252. 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/ES71G2412584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6b4a3fbaaf6942ddd667ae92d4dc0c37b62450205dfab85582dedaf59404da. 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/DGA062457571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f56216efaa5731ff927d6fcf616abdbc7cca92d8b755d6126099468846b53c9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES71G2412583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd48f98c821cce3c4d03f2e58fe4f2cd413d3688395c168df71c889c1ce84984. 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/ES71G2409386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f1ba8664f9012b83cafa2efa7f31c404cafa669af677d3bb639c6319f77d65. 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/ES71G2409389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43a4f2fc404b73bf3d2309ce1bb3143c5e427e1fbbe1fbc0dbef9097bad8b82. 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/ES71G2409390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b3fc7244c3a61933fbb1c6b77197397fbc817b0f3567285034eee0339c7d9f. 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/ES71G2409391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7147efa7f2dc8e14594e67c38a864a671584bac0ba10da63722b301f1a2d30b1. 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/ES71G2503074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a7686c6d7544cc683e5e3494e2fb863a5f99b1cc9232ffa07d0bff13a967e2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G2424588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1d2bc7dcca6d1df0af0ffda58d0110d743b711d7cc3480353d774eaf1505f3. 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/ES71G2432388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be85daea0a021b0f6301f3e3626f08ea1a141a9a8fe4ac9c63e382288f5dd62. 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/QZW9L2458342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d61b0909819564f887face24da2728971efdbc4cb30fb17039c0020c6f1bff4. 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/QMFME2464094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06f749efae8899a80d10cdf01742252ad388598427f9e5ed8b96dcd568756a6. 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/ES71G2429196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d16969c8651bd96ac73ceba077ade14ec1122281ed6c4814e20f7351b4399ea. 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/BK4DA2454897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2edee945ed4d40479ece80deb09f7048ccc09e1d361057a672604de020bf4d39. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BK4DA2452703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef938f6c694428ed2ca9f998e889eaa99205042e76166aa2548c729a6d3368a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES71G2420453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588e17f72ad7fa4cc5e3853c20fdadacdc71d30bf7f94efcc9b25b06684593aa. 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/ES71G2317684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e21cd03fb7d35637ab874d5f41c721136895ec864288bffdd1ad0cd4a99f0f. 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/ES71G2317685.