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 0xed7fe30e1360f5cb9e878ee2f7e440a821dea1c92cf6a5b4fd99423fc71c8db5. 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/f73fa22d-606d-4391-9fab-76a03a6859d2.json and https://artists.proofprofile.net/proofs/artist/f73fa22d-606d-4391-9fab-76a03a6859d2.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 0xe5211fcb8ee143861b958feb31a87512f172b3587d6a0288c313efbff454b52a. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:17:28Z), 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/ES5019431000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974b7f16d87fa774e461d75fdad1a7eba9c3934ffa34ef7774cdbf9a283018af. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/ES5019431006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f032fde733d2a58a51a76f908e65ebb705d2f75f77615b34af6650338407cc. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/ES5019431010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a49019829acb2f1f08b976c1c44688c037b6338bb240b245fe023213699e6a. 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/ES5019431011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13579a3b910371a12939f612fc4847b8836b4878bfcb228c6fed4d50605aff9d. 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/ES5019431012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ffa3efe2f31c678668ac673ffdb6b96436c65bf9b1e2f4533626145abac0a4. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/ES5019831001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a33201ce3b3fe0b6d29b21be7531f8a0ffa82da27a43d37aeb6939be76f263. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:10:57Z), 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/ES5019831002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd13291f1160ce19b040a1a4a516a8a2ae6f08790479eb6b55b533a33b39a1f1. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/ES5019831007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725815c1d2ddbb6b09dd8f236b1708daf7c3125f7b94cbf5b6e7c9dc0046cbd0. 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/ES5019831011.
Lo mejor de Enrique Urquijo y Los Problemas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1068ed58e1e006c2ac631fb97269bb403360fb5d3b0514a1fa7b56b021a40ff0. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:24:39Z), 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/ES5010100322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ffa3efe2f31c678668ac673ffdb6b96436c65bf9b1e2f4533626145abac0a4. 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/ES5019831001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd13291f1160ce19b040a1a4a516a8a2ae6f08790479eb6b55b533a33b39a1f1. 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/ES5019831007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb26f43d8d32db3ca49282455d529b537c0479e20e7d5159e5a065e244a0498. 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/ES5019831009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b6e72c82fe917bcbe9203b4f84161a38b8572b73033d9b72729f8b68deb304. 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/ES5019831005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a33201ce3b3fe0b6d29b21be7531f8a0ffa82da27a43d37aeb6939be76f263. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:47:30Z), 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/ES5019831002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8445bff0a6284d157b009900369e177830d12ccb61de964775450a5cde184e69. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/ES5019831004.
Desordenada habitación (feat. Antonio Vega)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba255b7b53d2b15af2151eddd239aa30e06d08f53d7375c8e90c3cf11a49c81c. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/ES5019831010.
Solo pienso en ti (feat. Jackson Browne)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753c86bc97da00e4eb95ec21ee398a5f9f34094205a75c2bcca95f94abd64910. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:34:58Z), 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/ES5019831006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2587fefc6da05f317b4fdcbcca571e4734b9ace7ad1aa938eafcfd889415c5. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:01:22Z), 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/ES5010100330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b84cb67857e8f3b6d474c22e1fdd0ed414ed0dbab7c110e287c166ecf7470c. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/ES5019831013.
Se fuerza la máquina (Nueva mezcla 2024)
Se fuerza la máquina - Nueva mezcla 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805318e309f0100e904f5d09fb6f75e97950feca6f47aa7bab8653bbd7fff7e8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ES5152400850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476d2732d3a8e4bd23b1a8fc7310e4ff6ae6a533398978e0b94006d98a315844. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/ES5152400839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90d450c167e7985a89c4d5fca2b1d74de06c69e5e2ae43f249980a79d9c6edf. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/ES5152400836.
Enrique Urquijo y los Problemas (Nueva mezcla 2024)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b8030557f96705ef29b8e7175fc8d30bef0d13598e0c7c87db6d273b412267. 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/ES5152400838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e90aeae4020b8c3bb2d928cb04b0968d042e3c2aeb0ad8babbeb5ef4e7e9fbb. 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/ES5152400840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd30d46d4cc17476e0a4941ff1b71815689329614cb4d03890ace7133ed2224d. 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/ES5152400843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f8d8f40eceb96d21b738fbc7d209cb76cab93e214fdef01def2e26b7059843. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:17:52Z), 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/ES5152400844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df06fc033bb95486ae65c1ab556c84c5e2cd8401dfe244d4f75661caa077a2f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES5019831000.
Las 100 mejores canciones del Pop Español, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd13291f1160ce19b040a1a4a516a8a2ae6f08790479eb6b55b533a33b39a1f1. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ES5019831007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe42712c20877920d7f9d84eb040457c05f821ae0142bc55b0c8d380a015af2. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/ES5019831003.