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 0xf324a2b1c0a820b652a7bca4fcbd1a52b93a9419e834ad7a874d1300ad018276. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4c666168-5abc-4bef-9b5e-6a089618e7ad.json and https://artists.proofprofile.net/proofs/artist/4c666168-5abc-4bef-9b5e-6a089618e7ad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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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 0x38e047a8bfc98b5c19d007f5ec799b1f0da2d7a131bf3b1c632bdd4dab179dc9. 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/QMFME1548170.
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Rock & Roll Star (feat. Sabino Méndez) - Bec 05
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6647d30105b7945f48e9b06664e401c005cd051e2aa7be6604a2112ec880d414. 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/ES5010600059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3efcdcfed65c69717b1ffeca53847f2a8006bdda90634744d6426705aec52d. 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/ES5019908022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d40cad818df0098e64b71e269e82bdf5ff2124d84451dd25168b14f84689b34. 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/ES5010094001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1a4e12da79aff691b60c8f52b6a38e80aea7dfed4f9a2cf6b6093f6e35a16d. 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/ES5151001487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554d5f29864581667eef2f391b6164eff58d5e4a8a7fddf7a91d40c82c2316af. 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/ES8150800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1675771ad4051742586561f232f7dc3ee94eef0225574042924c13dc3f76f0. 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/ES5151200672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe264738c36f97122e444f8ba31ea52713b3b4413485cf8e7700ca581a00d828. 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/ES5158414023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5e2187553e709a4b79490323dd3cfc21aed2a6a20ee735fce67c042d6ff29a. 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/ES5150801130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1943da03b6c118f9241b312c7298342785bac06ae6e07a1f1728a1d72106b3e. 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/ES5010300566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28db0149332055dcd5780646eb9701c0ab71c79721da55512756c35891d5fed2. 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/ES5010019005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc26d1c77f4394726d7d0eabc9a19bec74374d64bc6154c92343dfccd9bf38f. 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/ES5018410008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff0365ca0e89f04e3a41943a10c82caf57ac5d89f03820fd1637a5db4540942. 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/ES5010100118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21b0ec066dc4ccc690fcffe1125b30c2a923c5d88fa87085546b1a7e8a3c4ea. 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/ES5010300346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf1a9e896e3dfffc703c353fe808769f806222e8e6a9a21bec2853564afd080. 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/ES5010500075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd42e10b9a06bbcd86cb9c965ccedcfeba9ac8bd717ac3e5bcb979cf3566b5a. 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/ES5151101554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb101834bee44b6a7bb6562cb0a7a38aac264d5ba594afe019703a6986363a1bf. 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/ES5010100259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9655febcb5746ce3546d2b4964cfc8c7a7be631802d44ced632b7d958c21a03e. 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/ES5151100561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84db49e328cded1ab47a191f0433261e30784748b67c64c7d80a050906ba0372. 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/ES5019948004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d87a7d11f00b860168b75075ef217a12d5c5f6116941032487ff66b760fc8a. 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/ES5018699037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6ce6230496f25f8c229e323a94956cf919707ca12a9ed787d2c2a6f7cd0adf. 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/ES5010600043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5776e203db62d1fefa092543cf1ef9cf68ad2ea034b9f994742c55d2c7893f2a. 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/ES5010400213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5dd8ee5569427a978567ca19f89e8c4307099411aa68d11210e1a491900379. 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/ES5070300046.
Heroes de los 80. Esto es una empresa capitalista
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d1d1544e6cb6c8fe50385bee4191ad50e06e26852941aba9d9966734f2ccd2. 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/ES5070300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42927e3ad07f9bb15f7a876a726964a73d4a70ff099047eab81339c90469fe70. 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/ES5070300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1700f354c7ce74533d3e293ca50b5c84874f2b46a479dcc82461428f29195acb. 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/ES31E2101561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3641cf2d6d263d0f668fdb117ac4bade3471a34c3b760fc233a7bcbe7f41620. 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/ES31E2200551.