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 0x6debc9af1bac9dd068eb6d19d8fd5cbab90c817ee58cb37339822524530580f6. 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/e407b76f-28fc-4ee5-949d-7a6ff8f938c7.json and https://artists.proofprofile.net/proofs/artist/e407b76f-28fc-4ee5-949d-7a6ff8f938c7.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 0xf3921a20dfc7f374297ce4e6e898ccc7055003acf49a60b72203980eb13ac0f8. 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/ES5701500894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c1db330299f5eef09715fc46d2be50b0ccdcf946079677107dbf27f1634c4f. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/ES5701500903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7a71d566348fef246834be388effaeba6335abae55499631672503873d6278. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/ES5701500905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37bf820ac0c54a4acb965f8b54ded1fd95f09f345075007fab23f984a7eaf339. 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/ES5701500902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc912a85ccde88368d950e7d3aa580df4e2633db0dd6cf9f2b310eb37c59fc96. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES5701500893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb17869933f69651e53202841ebe25f58032cfba727880ea884ac67622623e1. 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/ES5701900501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb17869933f69651e53202841ebe25f58032cfba727880ea884ac67622623e1. 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/ES5701900501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd6b877dce1a362798f628a37976330461f22827d8533e7b56fc13fe5d2964b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES5702002256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b25966cc946c122a9cdb24d0b379666294a7fdbd57afb64e7128cda02834aa4. 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/ES5702100540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e50f9136353d3f7f9639227081724a56dd7ede3167ab4a8789540015eb68450. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES5702100940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47342c7607d03429f02a91824789c5710f542f196b7407e02ad7eb7bdd9521b. 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/ES5702101489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b60b8a72dfaa1cdfd7fb647ef70309f370b6a3260138b6291d13eca65b8e304. 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/ES5702100539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd2dd8e3a6c0a37d394b45aa8b1cd0c5a24a0ed14b0cac5787e8468be9d7841. 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/ES5702102120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42201842b882102a77a91998f8cee92ad5590ab167ccd7bb84c5938e3a14fc47. 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/ES5702200138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66962c2202669a5d0bde6765024bc4e2e4b5f39b8ecd82fb00b0b3a742909b9c. 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/ES5702201246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e5c4490dad4c0f767ff7ec25ac773fe3f513081aaa1400271aa5aa8c5a2061. 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/ES5152400122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfd199631251565bc9bb1e17ad7cc8b27231c55180cf84c7577b182d868fdc8. 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/ES5152400777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa308212247737dbe40a1b3ec45004869153fa8ed68fb2242d2e1931d9b92ee23. 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/ES5152401082.
MI FLAQUITA (Banda Sonora Original Maleficio: La Regla de Osha)
MI FLAQUITA - Banda Sonora Original Maleficio: La Regla de Osha
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109a6dcd2fe26895ad91905d69d730166b11acfa3f6ce7fe0b0784ce1331e376. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/ES5152500928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296d91b86ce36cce96e85e5fb8d83f73e0443b4b62fcc96e3e1897efbeeb8d4c. 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/ES5152501128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35d0d56a77c97ad14567539210138ca50022ba35cb5dfd5aa9385ecfbf54ad7. 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/ES5152001268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe510ba5738da3d0c2dd3cc1ae0341fe72ffc3fb1ffc8028dc07184783abe32cc. 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/MXF152200147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe3fcee32ffbca632580d173949329d101314a8e6f1f3f5d13ab5522701fa47. 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/QM4TW2186673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd54dfe1105c654d804f2c616b77f9c04b6d153d808dba3a0bd99ff72f69af97. 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/UYB282485009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacbde87fcf79ffdd1b8cfeeea3307cfb2374ec1feb6d7ac8f1194dd72029aa94. 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/ES71G2221729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46eb9304a6abe01d125a24f4ccb44bae34a072c7a8076223962856b2113b9470. 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/ES5702002378.