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 0x3560e4d17bec3ad19b3821ceb2976cafed59451440b77b78796aec5f6cdb8098. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ff7c2ce-551d-4e84-9634-67a55270ee45.json and https://artists.proofprofile.net/proofs/artist/9ff7c2ce-551d-4e84-9634-67a55270ee45.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 0xa3d835ba41760815b4ccaa8e413a0091471467d6c3167b3a08e96a9489126597. 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/BRUM72301244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea270221f0776735934c9e3d72d45908a1987cd73548d26f30a6bfaeb582b563. 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/BRUM72301247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5868562e82f245944efad143879a32483fd9562540f59b866fffde14882529a4. 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/BRUM72301364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1b25cae4fb747205918841508d5b1f694e204d8fbd47d25535d7a67030cd16. 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/BRUM72301251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeced80148ebfcdb8fc5b5bdac2633600b8a27ca2f65daae0ea6dcf70ce27411f. 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/BRUM72301249.
Cada Volta É Um Recomeço / Não Olhe Assim - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7542257d1a8ab2355604513e58d5fa4c2f81736c5536a1e711174a4980dd495. 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/BRUM72301250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5816c648968ab09619dfdd8f46a0bb35f8c974521b0543b1549aaa02fe7ba8a3. 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/BRUM72301246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3185bf0251bca7d0a661216f0aab13967dd478f304506832f8ed07d186dc285. 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/BRUM72301359.
Enquanto Houver Razões / Razões E Emoções - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb79225c11e2c25ec9a8e4d7326e985b56c7f1ba8ee7f5de250d63873ca147b. 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/BRUM72301360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098ea359c2b68d963c02a7221e5b6ee8ab38575a6eb7d334d3d2ddde13ce2ce7. 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/BRUM72301361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926a9ccf9b88107656e532ec6b01d0ae4de7b46da5bf9687fc4e84ac684b28dd. 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/QZ5AB1776795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1936acea5b43260a702ee6b7ee1cf7e6eb632468475220d836fff7060e74a9. 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/QZ5AB1776796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a10d8079b933dc731858dea0d33bdd418c781cbda0b1b4dded8693bcbc0afc. 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/QZ5AB1776797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24baf7945f3ec9fefa9f65717174e5c785c9eb37f693f17a811fc78e18581d02. 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/QZ5AB1776803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7238de78f863c5c175b4e61dbe3348f441d4cada238e0c796f746f8c380feb8c. 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/BKSGG2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb3035aa0e1290ae8fede97eabda47c13c7c4b9da5373edec114403c56237df. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/BKSGG2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4fea5a4a60c4d250ff8450d254fa3511ab6f3c3ab5107fdd2691f1e8728aa3. 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/BKSGG2300012.
Só Os Loucos Sabem / Vagalume / Menina Solta / Amei Te Ver / Ela Vai Voltar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9a0b4e3c087f6f51ee95a02f2569353c0ce9344832a22439891cfd1a089501. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR96X2205391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0af3d5ea4459ca46144188d21867e4e1dade937b141fd53c8718af3bb6b55d. 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/FR59R2246396.
Trocaria Tudo / Receita De Amar / Dupla Solidão (Ao Vivo)
Trocaria Tudo / Receita De Amar / Dupla Solidão - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c942e13250d36b37f8eb635708f4aea989aa21c7abefd285820d109d26d918. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/FR59R2208833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0678264320a91eef0d06a9036c15223ada8765ca16e01b08f54b757b68fb469. 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/BXH572200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ed44a441dab8c7b675550fee59232828c92a8f503448842fb5198d0a0ec832. 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/QZ5AB1720765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9942b5b843ae65275f6e542c68cc57741a1cf193ce9983f410f523d5793654d. 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/US7VG1798828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2cd0213097c3f6d99b59958c4c95ae6084a2d81f7ccd90510cc9b15b76ecf26. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/US7VG1780236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48c57aeff3b9632c0875f6e1de01c3194c803ed5ff97789927cee686f8405a1. 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/BRMCA0400431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b128e43ce821c643346bbf904a632a7d2cc62791cfb451248316aa618c7d2fa. 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/BR56G1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf51f81458f74ea6ff25f0f15af0698f04ab92e3e02438b1a1ba14c4e76556f. 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/BRIMT1100076.