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 0x1d1684cd368af28226f030a4eda98528abadc0c02f02869c2f27c59a0187fa40. 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/553c8b6a-f91e-4ef4-ab42-3f17095694e0.json and https://artists.proofprofile.net/proofs/artist/553c8b6a-f91e-4ef4-ab42-3f17095694e0.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 0x3aa7bec7f92714c1badca8bac96247948305f4e59b2aed4244c187bc6d410525. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/QZGLM1944842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708036912878dfe4217df6d1de5d2f0af8c756d6e30f5e819ca4f2f9d48c551d. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZGLM1970727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e37343e3e40bb099c5b55d134b48c9b00bb1475a97483b33b4704309527b24. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZHZ31939231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda92eb112e0143b5e179d91dec8d5885a0a5850052a03e722af97bb1b7a59be8. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHZ31939239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba505afba1b3b3b6f730b5bf2f0416d1aa84edc1912f5bc45608fb56afa58c4. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/QZHZ41998114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b711efc698157df7db534e9f90f988502d4116175adac8f383f8fc5b9882b5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US7VG2050498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e03553c65727f2255fc303bced8dc24ae16e66d96b1a9b2125cb796314c7af8. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/US7VG2050500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a15f7a58b5457401876f1dee2e4ca345a70f5bd7197422b3deb1ad0d0736b9. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/US7VG2050504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21da370c482e0d042bd5dbd6c5b510c18cfeabb984d6ddce55b5ddffa94eeb22. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/USDXS2012487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ee6a4438f1fc9618207955306a621f4e617a9244e85ff7f80baf5e56ed0c73. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/ESA012156593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc155036afc229a6cd4cdf42b36f4744eee386e99092214ce74a61ba858000901. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/ESA012209045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91598651e2cc59b5ff166972ca87f04b5e387e7540ca0ffdb58e7645b2427824. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ESA012266087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03bd3bd2efdddeba9c0488199251d3d35c6afd5f00831195203c387da97d445f. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZDQH2270002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72981e8f6ec5259737c3137545ce77ae48ea1ed0b2be3a71ef3aa69e0f2bfe95. 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/QZDQH2272055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99c5f859cfe93ea9e38deb99b061911bc020521d982c9275cbceb8fd219ee96. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:43:55Z), 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/QZDQH2352105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561d972f25d89b1c9622f805fa0edac586faf445a6568209a8ab06cf85c12901. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:27:59Z), 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/USA2P2317186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa335b8737158351986bf04e657eb7a8dae07055d54d2e6f378a8b6de9ce89e08. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/USA2P2323228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c65f92279c15841abd6dc2115a85aab9f9dd3426d9859b93170f12d1d7a0084. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/USA2P2332723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be90255f8e5d488be03ac2ca0eb7914b487ff8979915956a46635efc027915b. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T23:00:57Z), 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/QZTPX2335817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9482d4d0d9de6ae3569358352b2a428b044e1ab9a268da8a754c43a65ed483. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZTVM2370441.
Mujer de Todos, Mujer de Nadie (En Vivo)
Mujer de Todos, Mujer de Nadie - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71a4ec110cf95d3d6857954fb78f4bcad901be7b405c2e449eff3b79a0b9cf5. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZW9L2369777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf2ba2d29858b2eb3f9cb3080d0d88a3f41bc929b406e46572b9140db74a6d8. 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/US7VG2494536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b6bd8508c40eefcfa59c3fa17e333726d39048d4b8cd2587af25eee41b5195. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZW9M2343443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95ba38be6cb31a504f9154a24b610d43833cc41ef85705007ca627d192750ce. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:21:31Z), 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/QZGLM2456676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0ffbed1fce3873259ba35af69eab0eadeafbc1ac8a046f9e5357cb1c9c689e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZNJV2457753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa26fbbfc6b7b2af45771ddec37336be33cf83f44d5562b97edab81760863a0. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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/QZNJV2457754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fed12fc383ef2476004dce093427c18648887255c35ec5f8f5490f839d45620. 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/QZNJV2457755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5fcbf435573f7fabb3aa444ec4f456df6e1b3f6d1d1bac54d13a0d6e8f9f57. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QZNJV2457757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab28db1a39f69f99b69d5414988e28ad6d8058d3f4f7dc9342bed34f17b36978. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/QZTPX2499225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea94438775b75dfcbddf9404876224ab05c770a1640e6a542fd4facc70efeb41. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZW9K2497851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc21f7e22d3afe6403e311dcbfed86a85924e6490637ce971220c1f6e8742fe45. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZW9L2497765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4164a69fb9533c167d64a00c1569a1adf9566cf0dee2f3dd1f21129dc6a8c07f. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:08:59Z), 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/QZW9M2414790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb276ea3205d32b59ab527b63a80cecee0098c4d6b3ef1168073836c5dc7ffba. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:43:28Z), 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/QZNJZ2565232.