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 0x4658caebe5b953fc5f5b7374eed3460fa68c9fd05890c82dfa190d79ae0020cf. 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/08676eb6-fab7-4a85-8f6a-b78240de78e1.json and https://artists.proofprofile.net/proofs/artist/08676eb6-fab7-4a85-8f6a-b78240de78e1.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 0xdde67cc0b50f1a491ab8d4c14ee14479e5f08c89ba7f5a7bc116e2856f145592. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/US7VG2298877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae08539819e77a62adfb5b7c4d7ef923c1f97438f8b4cb7121de14b77207d191. 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/SE6XY2149027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2471b33a2f36c0373b3070a438f96ee60209f101f30f0290fc38132dd65ad43a. 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/GX53U2051131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3b4ce00e2fdd2d350583fc393cc5d97dbd4131cf391df7e0f39f825a6cfdf0. 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/QZNJV2021570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dfea34a4bf739e09ed324feff5ea281a9b66217c0b744df8bc3913a9127b57a. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZMZ92025707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c9badcbf6fc20ca9cca33091bd30c2d5c8b9a56613c12ce0547ce55f2c8dd0. 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/QZFYX1929930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308feb257c8cc304a684d8e82f83b78ae5719ea45d371d247b7c5d3f55c5b6fb. 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/QZGLS1908680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91bd945bc900c9467e8620fff839a2b2466160cb404ec24ecf01348d3e626706. 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/US7VG1806219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e1084552a81291008c5e3d362d176c04f6022f45a4b645f72342b5c0d291ed. 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/US7VG1806266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68659820b3a7b9fe7282076d0b08011ab5037226f3e63ac2066a6c3a09bd05d6. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/US7VG1806262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391684fd91de456b61ea815d562528f92dc3402fca071e0a03693a84d57c682c. 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/US7VG1806281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c516fbefe623ed59fa0e5ccf03a79940e8de32715dc39a172ec6bbfbe730d4. 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/US7VG1803676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597c6b53429bd1c263f1873e2cf82bcd2fb33e0086e34b851df9b5d9db90b5ef. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZHZ42064056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050f90f16089c28fcd68449bedbd8157505a9968325b4475dd2b8970fe683971. 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/QZ5AB2174947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7138ce53ddc6782d1b9347f750a67864805007e9eacd615dcadc5de739b7416f. 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/ES50A1900350.
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 957067 (2026-07-07T16:54:37Z), 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/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 0x485be9654b9d42fc784988cfaaa41646c11ede91f608450ec0cc79172f87c966. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/QM6P41979365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebaf4d7b8935db8fbf2ce4f28850b25f57c1b154c210552363b529de17191ed8. 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/ES50A1900527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728f4c77aacafaea035c2b929cb13611a73b8a04c393ca95a398e456f97f80c3. 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/ES50A1900535.
Mojito Mix 2019 (Reggaeton, Dembow, Mambo & Electro Latino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe704db394c3054497d83500fcfcec482eba91b86c4436d8984eeac72752e8cb1. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/ES50A1800533.
Verano Total 2019 (Reggaeton, Electro Latino, Mambo & Moombahton)
Latino Caliente 2020 (Latin Fitness, Moombahton, Reggaeton, Kuduro, Dembow)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3aa032302d4f83a1e7948ca677bfe0fa69a7d1578652ddfab9b393a69921f85. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/US7VG2579484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4187fb2a079530e964c1243622f262119dba2f81c2972f04ddf9132829afd830. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ES71G2036003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17da7d228a63880f3dd50861c145629acc34cd6f6899b5898bb8f3c49e273edb. 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/US7VG1831631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992913fb34b4fb47bcd3b121545aab861a9af7bf0e33b4c115e866f02a7f319e. 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/QZNJV2140917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46f0be920656731307a712e40c88a23c6e829c53bedb8c08f83f5cef8a2757d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ESA011934863.