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 0x92ccd8a9791648efb96e3e0f6ed013f9ee9156702885d90afa0f483285f41df6. 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/df693379-2c72-4ded-ba7d-f1ce56963378.json and https://artists.proofprofile.net/proofs/artist/df693379-2c72-4ded-ba7d-f1ce56963378.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
No Soy Cualquier Mujer (Remix) [feat. Zimple]
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 0x2f7f19f1a31b71de36d85a21a2cff15f464e7c1e21c823c49169891ed424728f. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/MXF151800214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dfb3104912a3ba76d73c78e661cccdfd81f268f40c01b3a1d732bb3a625875d. 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/US7VG2040062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa599b3cf421fdfc87da023fcbe398e0d66d297f403e4e3c75a034cf15466596d. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/US7VG2040066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e70451759551802107034e5f8d1be7eccd9501a1f6907f4b07787e15d3a046. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/US7VG2040067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfaf29b2f90dd3a3a945a78c0d0b365a129b17311a3ebb67f62dd910ca0738ab. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/US7VG2040068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe659ebbfd1b2606a86e039d211243df204c5563deef41516e17a9f0576a79cc. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/US7VG2040072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5675f34066be3c5a4149b151be7e9c1a06c8aaa492657d2f8db6ab2e85faf97b. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/US7VG2040073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13ee2f367ca25147f8b0f5574e322f2c181aabda0e0e882347efcfbdb0071b2. 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/US7VG2040075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a10f3c4e3c77f571cc351269407cc816025ee20a9a48d2b2e6404cede8cf6ca. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US7VG2040076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e919603f78195c40cfd5d6a211d89b8e38a2e45ffb657d8c50250f42596e902. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/US7VG2040077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf840862022dc95c9badd99df11de1e90879a720cd7cbadf4248179e3a800ff9a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US7VG2040081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314df19274b926e1801177508364342ed67deb8eb422447f02c5c94f2e643309. 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/US7VG2057732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd196537fbb22aa2b6a289d17338779410baa20b07f1369783f3f7d323bd4310. 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/US7VG2042325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24961b30ba1364f0e68b60007b6b4bff193aa55aa20c680a8e01525623452e4. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QM4TW1563601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615f7e9f6cfc7ac53278b3402d5486b2bb4581680915f6916ffbd6f59fc143d5. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/QM4TW1563597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554697e548c30c82a9ea75b737fcc1642f53e21dcd77f28003e5e96241d53c85. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/US7VG2055530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad87e625ebcea11225a0b8cc609b211a3049f7e383282d8db6bc28ff8b91090. 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/US7VG2055539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d5d384f88e252c840fe0723046b09780a702553ee82f566cf274b1f780254d. 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/MXE671800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19c2245549ffac68a4101d77491e560297f773ee599758b0361d898b4a5a143. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/GBLPF0271210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914b1980934322d254d621a6c18685cfa061a2a6a89d87e7a2d3648fb120d5c8. 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/QZ5AB1704931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2171ddd35a407fd6dbca8d521b877f2e66665b4b16386b416b93ee70162f06bc. 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/ES69S1500276.