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 0x90a0fc2dd2f34d3614980c3b67bcba3d6bee40cf961db39e2b660c685b938325. 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/17340c2f-3e98-4b0e-8519-19f795a3094d.json and https://artists.proofprofile.net/proofs/artist/17340c2f-3e98-4b0e-8519-19f795a3094d.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 0xf733610f9df509dc1bbf6b93051acfd727b366e27c13bf10a3a9355a73ee0a17. 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/QZKDT2400253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532bfc2589596db4a66696c9b1ac0a8a5e6376a8a134a5f5c8ba351b63e4408c. 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/QZKDT2400278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9787eddc399993f4cc6b36c3b45378c0dee352497305caf8021912ad2f70c14. 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/QZKDT2400271.
Se comenta + Tambora + 500 kitipo - En Vivo
Se comenta + Tambora + 500 kitipo (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92deee27d40cca37fb8f7b63e36f0d0da95cae3f046187ca921267ef3c9bf14b. 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/QZKDT2400303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55846fe3ca0066d1aa7521264a0e2433f6d9155bc41738fb8c82a2b92fa5b796. 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/QZKDT2400212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be90c76d4180e26f219fa711226d0b99459a773ff980cf05552a15e7808a760. 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/QZW9M2319532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e1f10b89ae5448664d96ea637c65155777baa03ecb3540ac7ca53b6527f2e3. 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/QMBZ91939830.
De Manhattan pal Bronx + Corre Corre + Cachonda - En Vivo
De Manhattan pal Bronx + Corre Corre + Cachonda (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4ea5428b80261da38b17e90a621a06a7b30cb8abc71164b711e5e224ecef03. 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/QZKDT2400240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c1c38d93744706f3d0e01f4d3a17288386eea6ef1d92a4c6ab4ee11b41a8af. 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/QZKDT2400484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82650207ac4034c74b0ca97a7ac40653ff56e4992087a00145dd8baa9e28b2d8. 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/QMFMG1580776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c5241593d387639ac25ad0d0e7465123a70c7f819388569b928a6a1770bd37. 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/QZKDT2400204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462163f9f511cdd9c9aef006ba82a3d8850ad57baa4024190d6eb5028031d3a4. 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/TCAIW2412263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8f5d1feb3c0f1dbf8fe7df9b3bc90096319da7a62bb02900997aaeb1c0b221. 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/QZKDT2400553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e81a2b8d8647aacb476b49f7ffa921881b91e8a1c64c2b21ab24e711579b5d5. 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/QZKDT2400382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44425a48c6e0d153a7e20e46be4a62e96f7f5280944481e6a24da7b4b8ed99d4. 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/QZKDT2500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d2f07204da2b1efe6c7a62714500c43c7a8de62a3bcc20f868e79dc46a0c50. 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/QZKDT2400710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2c0a307d5ad5cd4a26b1466a25ea3f30adb0c6aff2c89aa9500b58f061565b. 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/NLAM42200077.