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 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 0xc7d820118407d515e7ce8ab1afd06448b21b9719031715a34a51758fc3735900. 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/13033fa1-5b01-4531-a65b-2ca23141b6e6.json and https://artists.proofprofile.net/proofs/artist/13033fa1-5b01-4531-a65b-2ca23141b6e6.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 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 0xcbf2b24d4623545e9cf3830550b57ae74645dfada7288cb689f246cb5caac330. 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/QZMR82200412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0af8edadf0a6dcf0288996475716610b0830b59afe72841a285f97007c6c89. 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/QZMR82200409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93bebf6a3602d6568c764cc72996a2f6b13dc2cb226239617dfc5ca3f4222ce. 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/QZMR82200392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c002f57dcdd9aa48e84aa41821ee85c96f919165c16e9b88edf6f4a33bcd4cc. 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/QZMR82200365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8c9d22d05fb2a28b7440944561243f22e3f6ef1556da1ada0b5c664c00b138. 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/QZMR82200341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b60ce6fe2cd1b05a09a1e7bc661c6bfe242ae9a3c059eb36f6a4f29d2b7aac. 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/QZMR82200340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35531b64caf37088e088437bc3ad5a150ee1d550ddab0e46ad7bbe29a97f27bb. 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/QZMR82200288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3352be2b6d2925e8958fd59ededf14f31ea3712a48e43420a58a36475d7afb06. 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/QZMR82200090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94a7167e90c9e2cbdb6ab57a0cca524a7a82f91bdf5e106dca8ec21cb6b80ba. 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/QZMR82200049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1104c35450c14e8411a9cc9779e462c1c1df8e7dec98a932ab561df24afbb50. 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/QZMR82200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8da116317086bc83e28deae4fb4cfcd2b14e7dc446548db20a506f6c12cc7c3. 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/QZWDD2298042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1731aed6b2a49cb4a2cc16587863f97e7b07c5c16dd3283673eed7f7ab79835. 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/QZTV32224669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cad2e855cb7f27a51f9ff5d46dbcef0282fe72fc980697526d84a9bc49f9a9d. 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/QZ5FN2296858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4629f6f46efa2addc10f753afb6875dcb5cc5109f26c9ce9828f5fb4fabfc425. 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/QZTRX2121257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215840bcfba7d3d6b5bee077cdf1c737a3f34d31e7ddf29b5dee1a60dea74591. 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/GBRKQ2155948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591d079d4e9411b1e8befc6f3919e844ebd2a814bfe8595af528aecd25e70aaf. 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/TCAFP2114023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3b6ce43f80068ff66eef7248ef2bbab0f364b409c78b1a11f1dfb74122a9c4. 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/TCAFN2106277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95df96150232e95ce314b7f1b781c6b035d2cd2ff3e3e0de9c9f9c1a32f122f2. 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/TCAFG2025342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28d48b5ab5e0bfd54fa1af4bc73f7014e01d3f6e93ea3f32886757de537f280. 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/TCAFA2068317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe606d0201ffcd9b10e881310402a21904ec8bbfc9b7cc1b50e9a159cf99adc9b. 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/TCAEY2092222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce78851ca9394437ed48ae5de45a46a426134bd45b14b26610051628f344520. 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/TCAEQ2075961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af61a36710ddc57972edc9f0e7e56201dfb4173b6ba945187ae6d1e9afeac6d. 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/TCAEQ2079361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7074e7f44ab495519517db09707556abaddb4318bef68381d4c51c50c0d7041c. 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/QZMR82200667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6a662e3aaa4f0e4417cb424d601fdb7653195005879e2ef5abf6e16b0e9d51. 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/QZMR82200661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38a3c4595823df47b880f5b5971ddb36a7185d4b460ea748f0d338f4aa04aef. 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/QZMR82200646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185dd7ce4e8d862796937656e87d556fa4003d06eaa87571236778114ab0b9e8. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T15:31:57Z), 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/QZMR82200639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1181a96b3ba929cd0f5d870b788d2da7c08ff8e50b7cd0e7832ff44993a454fe. 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/QZZEB2434196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b80c623042a481bcf54afb3fab06971319a41cdbc849c87e6ba00973e96626. 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/QZMR82200564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc548bb74b1de6f7d0fde328c4a422b1d7207fe20107de859cff792b994fe0f6b. 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/QZMR82200530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68de985023b6e608222e1ea53137b386e08606384bbfb53a6f09041b79b880c7. 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/QZTVM2415959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfecaa47d6a151e587503adc8a4a1e932fe64c80964ed7a119f91d52f82d3fac8. 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/QZMR82200521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7afe9763995c76636f9ae430c2862ee74ab3f0c2b55c0fe645c0ab8a5f59f35. 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/QZMR82200512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad07ea922231626147b7264b0c3a26b6b850f1ca1baf43358f17cea909232fe. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:25:47Z), 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/QZMR82200473.
Chukito No Quieren Problema No Quieren Morirse