thumb|280px|Nogueira, rear right, with Gildo De Stefano, rear left, at the Guitar's International Festival Paulinho Nogueira (8 October 1929 – 2 August 2003) was a Brazilian guitarist, composer and si
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 0x03ee8b32b5613437d7c3737a7c75d735da2f14e2690132c37833f8a6377ce466. 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/dcf0b295-4736-477e-8e70-502e9f5a0a22.json and https://artists.proofprofile.net/proofs/artist/dcf0b295-4736-477e-8e70-502e9f5a0a22.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 0x4d4bd28600e20a90733500f876411b13b20bcafd1f319acb005117d05858e4c0. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/USLZJ2167083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe1c962aa80db5698c7d318218401c17338de4ad29250ec754d25418b97f4a1. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/BRRGE6800066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7cc97dd54f6d56748a9d565b9526922748ed7dbaff491f005145617b1030d5f. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/BRRGE6800062.
Paulinho Nogueira Canta Suas Composições
Choro Triste / Duas Contas / Gente Humilde
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8fa369d20a7aa62ba60918e1ac83cb63cc178dbd1d9c846d50e814e893a3873. 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/BRUM70800573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08e771449f7ecee9b1436cf7019c89b7bf0f6dcb93ff8c44219061e1c2221af. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/BRUM70800574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace358c1b614fc20a719f1dd642b6ba68a6e437a4c42a1cb34b591afafe5a0f2. 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/BRUM70800571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8a80c54295a92fdb5590329697ce4868fe5be6c25ebe2bd2b1e17e3a244379. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/BRUM70800572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15d7dad705680190cc5bb24b11845114da83a440cc9539587c1e851791bac5e. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/BRPGD7600079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a8779e2313467725e111011247bf9539a2937ccdb1e6082697df30a9cf131c. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/BRMVP0300308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84de0c2cefcd5c77abcf10747dfe5dfd3de9d2923a4ab72227fd34d5db8a645a. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/BRMVP0300292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45af8d79d6a2e490cab7d0b1fa6d7d3b560d7276b8f0cb293a4b0819fd223f5a. 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/BRMVP0501450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32790156a95085d3684d62460371b6217b0bfef573410fa218c83c8884a3511c. 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/BRMVP0300304.
Late Night Guitar: The Brazilian Sound of Paulinho Nogueira
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e2dacaaefb30b28443bb65f71a76fb8e082b9ca5da28a3d4caf1bdce7ab67a. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/BRMVP0300289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb9bcb32bb66519bc0b154da194f67e89d689d14d5ce148346ec5e5d0c5ebb1. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/BRMVP0300293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7274da3a6b220b4b4844b3cb55f1677d2d7dc3f1eb4816ec2d8bc9017eba5503. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BRMVP0401059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750294f45b614d73c14a57eec73cccc4c3820f9c62d1d45a1296135f1f98f95e. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/BRMVP0300297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fad520e69ea819bdfa01469c593cc590a125a8e10d9d0273898ebbcd981ed70. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BRAPI0301701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9419278d800ffee5e551daa9efa8d6f0eaa2a11a9b10601f2e3a56f9777ea0ec. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/BRAPI0301703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1387e4a8a67593229531c7c11758fbff879d28857e89aec778baec5ed227452e. 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/BRAPI0301704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9898c6accf19249f1a57e0cb4f93f0a5af2d38ad1e366f990ff704987c0d28e8. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/BRAPI0301706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1b87b5826411520044fa630e2b8890c1c604413e678fbaed1b7aceebb6fb03. 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/BRAPI0301708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a67c8935f288ec04c4f4144ba79bd41920f695c3acc95e772ef37e05b0c146e. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/BRAPI0301710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6cd27e05be7527166289592a7cdccbc860c65b695f3e92cf6854f1436f8e21. 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/BRTPA0200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbf2358b22a92ee9efaf07a38feba82793a9ba6309674df968abb2155c41705. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/BRTPA0200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1452bf473b44bc4ba09ddd1e34463a270aa88c09fea3268045a64e6b3550dfd. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/BRTPA0200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3350b39e7266abf678ad52267b21a8b68158e6b654a5158f05b62204d4ef96. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/BRTPA0200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e316c456f12f4a6b83abe6556d16ee5af662c658983f11bcd14f401c7ce544. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/BRTPA0200036.
Coleção 20 Super Sucessos: Paulinho Nogueira
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e2855e12f48c67a43f14097559d224cd23d53224287ea67e4dbec581311946. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USV351374365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19635a79396f076777e190b48deb24b46007c949306757c8e0ace3a7fd41c18. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/USV351374366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104f164485a35445d9721dede1c72ea8b38482db6765c900660bf272e4908500. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USV351374368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2017669fa6d64b57ac40022b5e10101910115c2cb93fb01e6a72ec28fc89efc7. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/USV351374370.
Bachianincha No.1 / Simplesmente o Bem Verdadeiro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0b30e639f05abedd8c8ca177e1bc5e9dba140d8971c82d05646ab5cba658ef. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/USV351374373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea81b3223fa209e36c7864c70e7071c0dca060012be865b1bfae694bd83289f. 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/USV351374374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ac318d2d6f0ce87c196af0b59e16597eb23f62fe848828e0baa1eb798ff31c. 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/USV351374926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc452016a6db6136366de3154657c513dde0c86d0d431c58fc6ceb5aa0d73cccb. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/USV351374930.
Bachianinha No. 2 / Araponga (Arr. for Guitar by Sérgio Assad)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657a53339f169a70e4224221ac0906158d7b013dd009bd071955cd8d8f73cf76. 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/USUM72309382.
Bachianinha No. 1 (Arr. for Guitar by Sérgio Assad)
Chico Buarque - Primeiras Composições (2024 Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32790156a95085d3684d62460371b6217b0bfef573410fa218c83c8884a3511c. 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/BRMVP0300304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde810f60346952080896b997a877e97add67e0e24abff571c4a50a11285e1b60. 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/BRMVP0300385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5052fd445dfaf20118e28b62788e8f8f8e2fa3f6e8f74a461434966c4b33665d. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/BRMVP0401333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3185509926cdb3408c0e7f96b7c707448a6942af55587a1077031ec613f670a4. 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/BRMVP0502204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3826676ea153635c0b0ef5acba43c0e9ec4ef837b52bc63b852d83347c732f3d. 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/BRPUI0200211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a09b02c3135533675db54cb9b9cf2aaeb92dd79a9f70e71faed8efa1104cd7. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/BRPUI0200225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b7971a04e239bec23468489f982069d6a101910cb26cc8613aae03b10b7bad. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/BRPUI0200237.
Tristezas de um Violao / Duas Contas / Gente Humilde
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3206faf30202ad29a4c1f1e1ae5d00d0dc73a6ceaf458436e449682e4087a987. 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/FR6V81768687.