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 0x3819050a6006387affcc3413955b24b80634195580452d08a000ea5791aee521. 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/8baa801c-0b24-4b99-8897-d298dc9fe8b8.json and https://artists.proofprofile.net/proofs/artist/8baa801c-0b24-4b99-8897-d298dc9fe8b8.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 0x588c3b236a434dacb78dd4ae23617b7d7b0f58e27f28949dbe42611f40e1eb30. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZFZ22012944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021724575e0cd2451db5ceafc399158d77ea80ec6fe79cab312ae66e45c27008. Chain 2 (Bitcoin): anchored in block 958143 (2026-07-15T10:15:04Z), 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/QZMEM2064553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cc28d3ce3ab27b5c171710e944a16943cc6ec9e20602ebe987e3fc4948a5af. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/QZK6J2028846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2abed8de775c5a87549105f9fbb7ec73dd30ac242925a6776ffebda63a872a2c. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZK6J2028844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb6359d461bbcdc7f5f148aad9b1c5629b4528015e8b8c66ac8731ae5cb4e26. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZK6P2178285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5dd64e0eb93cdad818a76aacaed4a4420116c541de933e36305a72788b02ff2. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZK6P2178289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c60ba9fd0e5740f89cbace120d97e12d83875dbc42c15e777f60a3518cea721. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/QZK6M2189453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc92f12dbd879a7cc99d1027e11332c125b1ee32d58850d9813e52c1c2dda2e70. 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/QZK6M2189454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec924e6af70fd07895996976ce6c87b2be59b6272fcfa15a6f03ac83b2ef256. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZK6M2189455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf240edb0cc60edde1ef92dda533c2b2cfa999c383133b419326c4dcba481377c. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:22:24Z), 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/QZK6M2189457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e844d47352954960f98d5583639440146f2d8c9afb295705b028f6ba30c89cc. 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/QZNWU2185396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfebd7ab070c8633d73fd4c806b6d7cf4225fb2959de9b26c4adadb98a424d7c3. 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/QZNWU2185397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7baac37d95069d208bc43e9388c62bb0b29f6e61f3c59d66bd876e489a66f1be. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZNWU2185399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea99c6f1581c5a00bf5276d6712d3f1c1ec74df57c0eb03cfade9c0aea428556. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/QZNWU2185400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47bc4e53f98fa224cb77bdeb673e3c63ef3d3c21ae4a284a19cec42a42834dc3. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZNWU2185401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa902c40203c74b5ec5204b07726d16b2e97f5b84dbfac25e158877ecd3bd77fa. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:48:21Z), 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/QZRP42130436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca696494a5270d4da5e9bd32955fc5c6db9155142e3401db2d14f3a3dce54fc. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZRP42145947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7392c2c6548ba3b9cd641c6f43caed7f72fafa9905b1d3220764912d536a97c1. 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/QZFZ32216526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e44d852c0a11127c081205ee2fd2812e9d78631e3e453ff4e107ed3cb5f371. 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/QZFZ72221909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d579417cfbdbfb3e92242b8bdc515eddb36b6dd375fd65f9b4ace5477bbad75. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZHN72254586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf97d45b5067ef3dd6ec32f9a032ce1dd9e37c6c725ef104b2084c84b97820e. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/QZNWV2281074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6878a6ef4bed0dd2e4d651fbbfca70a94ea83e43bc2457554ef211b0d8927fd2. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZES62312733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482c6923ea93b8355820c80f181ed73247d2bb1e0bf7f43add17efcf593d50f7. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZTAX2388024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5867de612014941a79ebdfecb4171e2925c52a9f50e4db3447ef8f66d2178d06. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QZDA52442399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791a0e9bedc01b00754579cbca9ad847ad90172d861a4014a526da0daf502dc9. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:20:20Z), 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/QZDA82491821.
Sax Regional Mexicano Nuevo (Sax Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57541935a3f9a601fa9f5e096bd7401d80337d767e2b42daaf7b0613caa24f6. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:19:52Z), 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/QZTAS2436603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0ea6b84707b61058d962498063c32b10678cf712a51247027194791a5f6c97. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:31:46Z), 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/QZTAS2436604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668ea44dc1c07e25bcc4846f00204a45d3e5d91a1edf08364d76b135b0f3ce13. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZTAS2436605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3cce4fa13b59878cd50a977554339803bc4ade0081a0e23412baa19d863017. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:31:59Z), 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/QZTAS2436606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe760acf44164fe6035bd2f8e2efecbac5c3f9831f6b45479d8c8c3aeb67c6cf1. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZTAS2436607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d4e8ad6ec4156f3bfeffaf70c126c07904ab17d9d218a134c91696d8c3df03. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/QZTAS2436608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a45344245f75043fa545957522e09731ee7c7104c2550037e4507e929e509df. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZTB42471561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1173985b97983df5cd23d06097693b9b1752a99c38727cc551208ef640d1c54e. 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/QZWFE2432756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfb76477b032b9be905da910c058fae2ec41ae82c704239931f2290bc49f1cd. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZZ7N2489528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9024ddcaf4fa26ae91befcd946e1a303fbbcbdb961a5d2b6a5b179c21c90a01. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T19:36:00Z), 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/QT3EY2411192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6bf10c892b52e17faccb7b00fbcdae46bcf2dc8d60a223563aceeb4df7bdf4. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZDA52509332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7944e06beaaf0d3460dddb0d15241e8c5541519cc45ec165cbe149a80d65ed. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZHN62586289.
DtMF - DeBÍ TiRAR MáS FOToS (Sax Version)
DtMF - DeBÍ TiRAR MáS FOToS - Sax Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab388515fe7dc09b52da55919d047e3c9a67e3606ec476f3fa18cbfdc7599e4. 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/QZZ7K2538109.