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 0x03b749e02828a9cc44fae6ef1cd80ea7853f186ad9407522e995333e9abcc6c9. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac217f75-ae5e-44a5-ae81-45dcee0a3b7a.json and https://artists.proofprofile.net/proofs/artist/ac217f75-ae5e-44a5-ae81-45dcee0a3b7a.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 0x50519e94f06fcfc8e38a79b7b0414415ca90bf448ca5fb40aec7266a71e8d117. 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/US7VG1520238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ef56086dbe7da5ca5d39d76c643e3907643f0a76676477638c75501a3cd5d3. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/US7VG1521516.
Tempo para Sobreviver: Ao Vivo na Concha Acústica da Fito
Black Days no Estúdio Showlivre (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb615fe4ae690708b8d7f8875763478255406f6b7d82b067dca5e51302c0eec8. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZ5AB1830351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f3e218b967a3de110ca2fa4c8d4018a0c726a7830cd84395196d3ae4786ba8. 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/BROQL1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49333427e079ec39636dec884792c1b33bf2a4741cd38d67275560d3af81bbb0. 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/BROQL1900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88e9558eb10f55c53d57cccf9e7a21fab69e9dcb46c310f486d15745cda1959. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/BROQL1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482ff291e9617dc11d107b3a52137b4233fcc81fc73c5fb5ffe00dc1e76e32ee. 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/BROQL1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30e263990aff5d02b101515e8e38933a1fdd80b402411c929ddd65b2b105fa7. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/BCFHH2500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9026aa9d852600d48e30bccc01b10a357c8476c537f0e951d3d4025fa7a64dda. 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/BCFHH2500005.
Sobre Vingança, Poder e Decepções Amorosas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237423a8179a5f8dd527dafdd1bf0ef639bdf77db1a7cad206cb16c91257165f. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/BCFHH2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e44348a981425af6af5161e9f4930755dbf40b26df8029cd781f070b3e7b60d. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/BCFHH2500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356f2ccaeff4f485817514879a45326c554b82f5987f9c673f71539e5120c7ef. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/BCFHH2500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc829730a8276a164106e52417f4c18a40727b40e655a1a5064462e8a33f80d3. 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/BCFHH2500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13349a5c6335b63a7c1e96a6e73540f038dc7af492e0f02c17c3c13d55dccb3. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/BCFHH2500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff4fbd1da285e5d736019d8f6388101db4c65a118d40a8c4c3f04b6d32e577a. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:52:08Z), 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/BCFHH2500011.