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 0x2f6d01a96808ba41046bb6e7fed50c2d9ff6fec3afbe929d28bcb9e42f49b61c. 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/b8b3bdf4-5c2b-4327-a334-880fc6b585c1.json and https://artists.proofprofile.net/proofs/artist/b8b3bdf4-5c2b-4327-a334-880fc6b585c1.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 0x4c37ce8d92202ffe0bd58caea7b00c25c4bbaa733758a409906026b29f9d3871. 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/BRUM71904468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd90efaa73dbd15c7c4529a9368fa27a9c242156fc233015be1c18459a03477. 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/BRUM71904463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff214d22ebc0b01d4ab63d5274c945975e513a594c034ec9ffb648f8675b79be. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/BRUM71904461.
Pra Não Desgrudar - Presentinho (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x672072a5aaf886d652dee62c3095d154f5132aad2dc90a649b8d984d67cdc18f. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/BRUM71904458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf641335ccc58b0a5c835eb057251c224a778c404ece6d85c58d41365a49771. 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/BRUM71904460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bca18e6d60007a784e3fb59dcb4ce2e6bd3776459e744fd546ffa30a7cd1cb8. 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/BRUM71904464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x459a2f2b36da4b6e5ecfea2306cf434f8af260c1b2ccafa2e94d05a6fbd2047f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/BRUM71904459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb789a7307fefcc0344f52acf8bab879c5ac038930d5a893c9b1a779e1f3f1a9. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:40:39Z), 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/BRUM71904466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c96373edd06005d4b5ece1c9223b78840076435012bd18e04f2246300ef840. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:05:19Z), 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/BRUM71402079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05eba393af2b564ab96340bf18c85dd91c54bc8d2f3a21120786496984c488e7. 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/BRUM72100340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac84f1d2f47e4d4def3079c59aaec0fe25a5380f1cf1b137305851ec9381c38. 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/BRUM72200833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1392a8fe2d6a36ce806c95b000e5f27c01662415403185c73d8e3ff4b293bb. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/BRUM72200831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77142603a5d057072b975c263029d6f560144cd920018849d26a5745182314d2. 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/BRUM72200832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a25c1787c1450d93f1d7595bfc76113ec8d77863639fa8b74bc5507b604e18e. 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/BRUM72200828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da1e7f4fb7c5a489655c07cc8c6d35e02a6fc3e9c0cafe36a65137e46ab68a4. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:45:50Z), 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/BRUM72200836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d49a8d6a9917a57b046bcf96cefb35c3af17b2f999dac5fbecd8a93fc053f1. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:13:58Z), 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/BRUM72200840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da1e7f4fb7c5a489655c07cc8c6d35e02a6fc3e9c0cafe36a65137e46ab68a4. 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/BRUM72200836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a25c1787c1450d93f1d7595bfc76113ec8d77863639fa8b74bc5507b604e18e. 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/BRUM72200828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d49a8d6a9917a57b046bcf96cefb35c3af17b2f999dac5fbecd8a93fc053f1. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/BRUM72200840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe8fd4832f48534e1e175df5c739529ba7cd7c578900c41c487bdc7bb6ca9bb. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:00:39Z), 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/BRUM72200837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77142603a5d057072b975c263029d6f560144cd920018849d26a5745182314d2. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/BRUM72200832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4704c8a8797666cae10ebee47969e5767d1a9d396437411d93e85c926463e7f9. 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/BRUM72200839.
Pensando Em Nós / Faz Isso Não (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x687fec78f3a453f126f7ddeac11db9048f56ff517fbbc92c7dd85129f0ff0c46. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/BRUM72300438.
Ainda Bem Que É Pagode (Ao Vivo / Vol.1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x687fec78f3a453f126f7ddeac11db9048f56ff517fbbc92c7dd85129f0ff0c46. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/BRUM72300438.
Insensível / Em Qualquer Lugar - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b331772a26e10be6e4653438b3b414253ceb5d13afeadd0afc3b893e189540. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:37:44Z), 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/BRUM72300422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1eaa8b5aaab0d13bcd4c74e3461db550ac726211f9d16d4d3dc0a6547000f1. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/BRUM72300432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0020607da1bc527f0086237aeada9556866bcf5e04a59f2fe39dbf2c626c63. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:12:36Z), 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/BRUM72300429.
Ainda Bem Que É Pagode (Ao Vivo / Vol.2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49063178305f885f3152d392daae60a75ef88fc043c847abd5db2d46c90930a7. 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/BRUM72300416.
Ainda Bem Que É Pagode (Ao Vivo / Bônus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772c751fe03257172b090356a87b8f8f2f28616fc03e28fed8b9e4e3aec5671a. 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/BRUM72401508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00023ab1356f6da5564287da457194a7afd916d498d6e82d1ddc3b68e784bc63. 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/BRUM72401904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b49b45af39bf31e7b345cf651e72e126522019ee6ac4ad858a0289dc0a01690. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRUM72401906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4da5b817c2b5a4ec72198e50d70d3365d87373a5ab19f27347a87d124c82d4a. 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/BRUV72401135.
Presentinho / Reticências / Apaixonei De Vez
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5fb0f8745078aa81ee8b0db0a1cc1d7c28f7d9904af26827e5b848693ec76b6. 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/BRUM72401908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860fcb10055168373317dac45440762d0ae050cc2158ade25066acf3af20fc79. Chain 2 (Bitcoin): anchored in block 958647 (2026-07-19T02:36:14Z), 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/BRUM72402175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d74483a8afa1049332f00d19a849bba0541db6a3fce40dbf3c17d7034c2c9a. 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/BRUM72401905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5679d79c939a46a52d261b713687d02c417ffcd34d657b0d2a1d91a142a919cc. 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/QZW9K2387915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a11bdaa1b67588c2fbdb457e32eaec1c99000c633fe25c078c8c8a6878b1727. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BCPPA2200001.