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 0xfcef7416fbde53bb095a579f270f318d5a8109de7e83a705b09f4fb6e19d0b89. 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/88577898-b548-4184-803f-424752b22b17.json and https://artists.proofprofile.net/proofs/artist/88577898-b548-4184-803f-424752b22b17.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 0xc1c5b5e76c1331310dff6b35776ae683a9f1b6479c62cb2bbb2b7210029f6f6d. 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/BRBMG6100142.
Casa e Comida / Voltarás (Golondrina de Ojos Negros)
Esta Noite Eu Queria Que O Mundo Acabasse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07681b5126286c6ad2061177b8cc272837a1ce487c944b010010a5e6e74e2809. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BRSME7200125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da70febf2f0817917a583a35ee5659c65e3c397625b705074693238731534c7. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BRSME7700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e4d0cad9002a149a46ba0424bba464f4271f393b2c203e42e503167bc2f685. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BRSME7200124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3bbdcf6974a5e972c5730251209b35cbc800f22a869ee34cd97ff59e0e294b. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/BRSME7300070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4922618b3bf5ca5df42b040570f8f117fa13edf93f4e4e76469b20ef5e168179. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/BRSME7600034.
Os 20 Anos Artísticos de Núbia Lafayette
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e4d0cad9002a149a46ba0424bba464f4271f393b2c203e42e503167bc2f685. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/BRSME7200124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e06902f169362e0fdc262545b1a1cf48834daa610bab19373fdc454958ee5d. 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/BRSME7200130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65b8879f557c27a95870e8cc7ccd0735894aad08e298da90276cb92478fd24c. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/BRSME7200123.
20 Super Sucessos: Nubia Lafayette Canta Dalva de Oliveira
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309c4434e1182dc96ebb1fc4061bf23a796dc5a2537661fca7719761f34b8fd0. 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/BRMAX1400478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad2cd74daaa560a2f9ffc5dd8b97660c8f30f9c39b75ac717ee7840a0aca246. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:33:51Z), 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/BRSME7200126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03c5be3b8cd1837c7878f6ebd0d1701f0fb5a3eb0b265b7a0ca27184253eac8. 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/BRSME7800196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edc6c814a462630d9b79a14dd2d75c3a13143429591339f3a7669c7af5dbc5d. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/BRSME8100146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fcf9a05e54a67213a8b0b962740a3b00fa1cef029096bb228e80af9e93ec16. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BRSME7200234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6702bc46078b2197e8f3e6d6c6db687294bc41f2329fb5fb88fcfba91853a2. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/BRSME7200128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0f6455d94acf54cbbfc50e66ccee4f5e306990089b7602bec798d14f8b1bfd. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BRSME8000037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5d69baf6ec542ef77eb23cc1147fdde828e7a682c81213412791122ec06bc6. 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/BRSME7200129.
20 Super Sucessos: Núbia Lafayette (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6398667beb46a587474a119c39031bb563d3d1eb21aab764b2ce2e4602bb61b2. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BRMAX1500443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195fc3df720594cbb298f23856872c68df1ce78846a042178c21d2fd720703a7. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/BRMAX1500444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebed570621ada2b0d19423c709d20d0b00a9a1c1f365ed1e0a04dfdc87c30ffa. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/BRMAX1500445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6070918f43545c4fabb4c582f8fa2cc82472d06e587ba7dfc55403e7f00f9f51. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/BRMAX1500446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e484d9070b81847fd6fbf8e8b2919bde120c79c5d5fa6b93830b7ab490b441. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BRMAX1500447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30ccdff7d03898c0b342e38cd4d8e95e7a24376a6ac46abab78e0d29b2b1974. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/BRMAX1500448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb48dfcbae7dadfe9de51d2887aa42bccb50235b367f0a45f224ac3b48c06667. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/BRPOY0700243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47848950b0dbc4b0a0f8789ba2cdb44c83b176eb047c989382e283c22c7c9478. 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/BRMAX1500449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda21c65158f79ec4f30d948798ca180d6dff3f9b1d9cb5ef71381adfcdd9bf45. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BRPOY0700245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7ce4df3e4a26849d61162c92b3de9bc172135a86fed41a68b051bdffb75890. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/BRMAX1500450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fe5181c95c9c22961720e1410170d550a67f06cb44c2f7f91a1c46ede66431. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/BRMAX1500451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449797916438fa07b9a8add51d631a233a1ae3bc34bc26c4f2f19e3364fa386d. 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/BRMAX1500452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21aeb097872c72517152e756f5c8112a9a405fb04f7d69525ede2b136019a725. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T21:01:54Z), 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/BRMAX1500453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447d070cc99cf2e19e2c82c9100dd443eff58fb0ee21926070afc7c3f984e7d5. 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/BRMAX1500626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ffa9fae34553ed6f3b43785a7c942e3a854e1318a5d31a8b58f7a94a31d0eb9. 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/BRMAX1500629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40622110d21eb9e4ee270c7be012520febd2bf784728659ef3dcba47860eb5a5. 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/BRMAX1500635.