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 0xe0d86d03c8c925a928137936738f4813ebd9765381ef0919cd3bc44f3d728e07. 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/fbb7273c-9735-4036-990f-ff9b881fbd8b.json and https://artists.proofprofile.net/proofs/artist/fbb7273c-9735-4036-990f-ff9b881fbd8b.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 0xee207144b897c8930ab3bc6003c0b68413e67c1060bfbf4e6fdeecd0ab30846a. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:24:06Z), 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/PEBQ91820114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f384d915eda8ac5ee0e24824730081b11ef51932bb45a5623fb416a43c26c01. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:16:06Z), 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/QM24S1915667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31cd6645750a4d33bfeee1f4f273e40785d5b8b5c0845f22ac19a7981a78d49. 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/ESA012005779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52369ac4a6622d64d5abf5a0da3da702cbbab541861b97eead9737634d08ceac. 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/ESA012043796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb076297636a52e528935565de97e6c865df7af2e6a9e7c8263941b77829c15. Chain 2 (Bitcoin): anchored in block 958613 (2026-07-18T21:35:09Z), 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/ESA011732943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c518f8c037c30d5bd916a76410680fca7ca99b4a18418d1d5e466a8378e19b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ESA011744070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea110a7e5f56eb47bb676137bff8417c4550f863f2ae93585f74387b4e839675. 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/ESA012117522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc174d3684233ae0cc9c2adb24d6f50ea5ba6a95b9f028f4eba831e0d88101334. 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/ESA012262845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122a377581f6de5a6ff90912197fc2c42b41220137350ff41d99896def2340d0. 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/ESA012266409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc174d3684233ae0cc9c2adb24d6f50ea5ba6a95b9f028f4eba831e0d88101334. 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/ESA012262845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74754fb304e5a50fdcc04ac1b35d494db5a79f16beac68199b3f5781f24d81b1. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T09:19:57Z), 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/ESA012251849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57d68f8513c13a4452a14cef58fcd2e87a3fb489960fe6f1dec03ecf6be39b2. 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/ESA012266412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0858130d1e94b0cb5dc41db96ca5249acc42c7e6e30b5b52be442cc72ff12412. 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/ESA012262847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb71f71188f9e75bead7f7ce478108bd4ba1b936abb9c8396fb40f57f1970ce7. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZWDW2340885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae39f86cbfb1783b17a2064465d3c050edb3fc7c641b277689b36c119c0bf7d. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZWDW2340886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a29e219feca53539f198029ee9fea2df4925b0133a9de49e70f274b7050679. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:59:35Z), 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/QZWDW2340887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a20392dfb50278efbf37e7b8c93d646e75c2b6fffaf4d3f7d65e724aebd9379. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QZWDW2340888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31205dba0cfee0d32323a44f1eca5fe920ffa9549767200f1ea9febc5f5308e9. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:22:39Z), 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/QZWDW2340889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf067ee4b8a477df775b131a2c40a4b502d3f46a9b10713a849536c9812a8900d. 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/QZWDW2340893.
UN VERANO EN MADRID (with Yotuel & Yago Roche)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ecb16a4d9f7fc8bc12408c3b3ccf180242bc0398348300489163a4f5514202. 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/QZWDW2379390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a27af9052d43a08b1ec741e6eb4d75e63c5207c6e34bca4e138844cdbe578b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZYFZ2388260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18eed17527e2821a71d916f0b911e434263205554dadfbf1291e43d041afb80. 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/QZZ662430247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f75bfbec42ae2f66df05edc058706a398c429138d3bd5913320d8c34d30af5. 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/QZWDW2466769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57de6dad98de119454c306c1a40ece23dc5019749a4f1e080e91172438796d45. 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/QZWDW2471414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4feb5ef028372f893c0bb677878203a6eaa5ab43cdbcb568cd0f3ced604151. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZWDW2471417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac70a5512faa8279b8730ef0422aa599f268678d1d8abc11a9b8c57579f1de9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZWDW2471422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbda49422bb0ecf2cf516f7db540db39dabfea73b14672b52bc51b69c4c064d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZN882525056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b4445e153709a9ad0ff7a45538aa67b83d245aea6f02a5287cb89db36847cd. 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/QZN882540673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925ec3ffd69016ed56c59f121f3c0172a05b6d5e1039926baa6fcfaf4dcf2d1e. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZWDW2596139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd584ef19ea209d0149ac02f904f77093ba81a9a54b46cd3b81c0a88bbb320d. 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/QZZ662318827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66aa3381902b5ac5b1e75e6cb4d86f33023cf22b0e3c3bde66f812422fb6360. 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/QMBZ92181530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1f7393f21f3bbc4bdc50295af6df6db74a5619985b5ac37381494423a549dc. 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/QM6MZ2228882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e496833a1a38acb581c9af986fa5e04020e1642f795252803f042632b1c5ec. 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/QZW9L2348898.