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 0x5af5b7d02625fc7e97d4c3c75805a7441b3717c2aa6ef266aa3f40f8e15c82d3. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e3f087b9-07b1-4b66-b9d4-217db44618d4.json and https://artists.proofprofile.net/proofs/artist/e3f087b9-07b1-4b66-b9d4-217db44618d4.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 0xc5101d09567a1ce67ad8579cc0793b70452f4594bcb63ed34a87d3c960867cd9. 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/QMFME2110034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c6232c0a768aee128ffab0d0c92ac8edeadc7bda13dc0c671bde56f5b33e79f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ES50A1900621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4c1fc42dff5ce275051741544bd87c4e13d9e316b8b81b4681694c94852503. 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/QZNJZ2419886.
40 Latin Hits 2019 (Reggaeton, Electro Latino & Mambo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb0bfcb6a5c477422448e278f0d2134f4ce107efaefb026ab6a9023e5ba5b83. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/CAHQJ1916828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e843cbb78cb3656af76f99e450d0f6408640d10043ad2bdcad978c32847e78. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:39:04Z), 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/ITH641912083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072defbaa077e0cfb6a52468ff14d05e3523025208b8f4351ddd804bcb581e90. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/ITH641907936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304ed338152aed4f89130cbe52a92a159c50050dc09fdcead725c28c86d7ecd0. 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/US7VG2409438.
Mojito Mix 2021 (Reggaeton, Dembow, Mambo & Electro Latino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3cc793211e779b57ead6c9022013bbf0dfbbe4c89dd0936218ff729701acf28. 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/ES50A1300546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5790d6998c4dfe0da6753bd933c64fea32bc55ec297750823e9402bafbeefd90. 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/ES50A2000108.
Carrete 2023 (Electro Latino, Reggaeton, Mambo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x882a0fc5ba2b8e50a1f2c47a508fb541c1baf09544ceef01262809fa70fb095c. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:47:51Z), 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/ITPCI2200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634ff0a838cc7b219033bb9d461fc3a41efa726cc653897e76ffe7e225a5a6c2. 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/US7VG2596438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x376b16dc2f22e4baf3df0fbf96f8ce45fac453519709dd45cfcfbfddfb1bd943. 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/QZTVM2486851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0dfa8d9ba50f406afc8f8ce0188912cec09192b502197fc20ee9f176d8dd39. 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/ES50A2300279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x842ed69e5eb2e584554ee9b63e17302894e77fd23f4f11ade48824b7172889fb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BK4DA2207285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e72eaece26bea664b7c8673d5684f9c9c28df2d5071c7a21571a7ed0996d8be. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:24:15Z), 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/ZZOPM2230942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29377adbad9d38d9298cd09f92d04728b67043a98c93499c73712c66d43b2a40. 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/ES50A2200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2807d2c5ada0f3fc95d69e6d88273826b99827462dbfa33a886f640f160b8819. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZQAY2226150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e81a68f0c845482fff897f468855e501e54efe5e5eb76f8eb60e6670983db5. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZQAY2291307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb8a31055e49659031b95940902d11b800b78365ae390c211f3170faa7c3848. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T23:03:23Z), 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/QZQAY2209741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0b00c9dcbf1adabfcc7cc54e57efa2bf6024029b2d8e05f2ab6acd26aaf0bb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZQAY2293282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7eb3c58ff72909849c4757a1ebe8fdc0953471d7037f3ad4ba4f9163dbdb52. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZQAY2297654.
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
Verano Total 2020 (Reggaeton, Electro Latino, Mambo & Moombahton)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318e241b3a614045ab8558f657e76bd9b5765ecfe082535f3daa7ba59f9f5d83. 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/ITH642009783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394883f38fb44ded4ae03fa1cdafb92bc00e6bcc48f9cbf10092a105337cf975. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ITH642007768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd957129f5dfc055c38fd5953364fe28722c1b08676d21be9b8796d197fcfc62b. 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/ES50A1900388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df6c58f6794b5a2b5b4561698469414c03191a96d96b84330b7fb89b606d026. 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/ES50A2000175.