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 0x0a7d347fc6dac3a071276ee2affe3df052094fad3350caca73322a982cb18dd6. 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/bc9d0f77-fbbd-4536-bcf6-298f06d7de63.json and https://artists.proofprofile.net/proofs/artist/bc9d0f77-fbbd-4536-bcf6-298f06d7de63.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 0x10bf704e1cfc20b54ea50f0f1277d094ed15c42d05f0300bbddbda7fa5702874. 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/BR2SH1000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e243992e298128777943f253868189d4cf484992ab98d09f18edd41706d6f7d. 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/BR2SH1000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8c0da1173d6e393cffde34dc638f1aaac54d19de26a6ef1f21fe4a0ce0a071. 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/BR2SH1000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512a082dafafa45f007738fbd96f1a82ff1b3ea2714266321f47bd457ae4945e. 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/BR2SH1000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c74bbd76b8e1acbf8e772eac3116c0617639d78c91ca1c32eb0d3ea11da07ee. 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/BR2SH1600004.
Zé Manoel no Estúdio Showlivre (Ao Vivo)
Delírio de um Romance a Céu Aberto - ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf177073f122921afc35897517ff004948e1dc00d8c20302e945ad2f56e8e49. 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/BR2SH2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2fe5fe6fd6ba5cf5d5d9c1222939e3d6c1d2a06f9de3b6625daf0dd85487d9c. 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/BR2SH2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b04e050e5e9be25b5c8f1ef46155fa8b3fda45ecf18d5d67780fbba8157de7. 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/BR2SH2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d54628e0be95adc4b3f6faa65d1e23e47b8ff008a3bfdb6e3bd92e5f688e5a6. 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/BR2SH2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d6e972d31f4e84fd71ac821961bb1fd02c539e2bacfd6a77b945c840f16352. 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/BR2SH2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a6431b49e95cded203e27f584ca716e6d698a8033d0a993b8ac779f2487fe7. 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/BR2SH2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f80a71d895bb2abcb2c811bee0c779620364edf1bc980a4611f610afd8aaad. 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/BR2SH2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b5c0a41e2cb5504c1c5693a0791b271b73a2f49107dbf333f0b8235785e9a5. 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/BR2SH2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7151738d5968ebed7ff0fa63e9123eab10cf062d92e236ead66a26c8e552d4a. 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/BR2SH2000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d71819addca05554ab3c4069162a423a5ef011038882a5aa136969439586a0f. 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/BR2SH2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13c3ec71cad046ae3f778828dd76718233f5734dc41b66182b41df9c8a909ae. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/BR2SH2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c8379bd979f4c855eb1003bdb0c96311358b18f3745418a2ae643f48e49895. 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/BXI9D2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebef73c3afbfbb30c7c459b32da9feef31d9612b1449b951660df512396ce97. 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/BR2SH2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec72307b5f4e10772398a06f799f985b3182bb6039f162368d9acfe2e8115cd. 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/BR2SH2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf904beecbc78c191f43c89a29a5023ea902dbd6b7194173b39ec9b8c47439003. 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/BR2SH2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5304eb599c991c4e1e50c7ba9a1cb98e7d24cbebc916d2d51bd267cb83d693eb. 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/BR2SH2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c1992248bfc6e81900421f80bd95d3f464ae81a0a53a9af7d26ff58b267231. 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/BR2SH2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6e6c65b59f8e5a626d886ac08dac1a063d73c06fe7be4f5db9fa3901b07cad. 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/BR2SH2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb784c73c026b2a5ec491316b0813f5d0aad4b9223bff11b9184e0a961ba497e. 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/BR2SH2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bfc7baf848a01fced5401e13dc8980871905ac8d7907fbfd53f08b0b142cf0f. 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/BR2SH2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab664b424e0239c2a7bb42505bb07457457b982c84887e97566ec28ebe7ef5ce. 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/BR2SH2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3131c2eb7fbc88644b9e80c3dbd20a6a93aa190ebb577fd50619e0849717fc75. 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/BR2SH2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36ef304057aba00572d7ea8e0322cf5312d8e7aa33c62ffd955e9293be93f2e. 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/BR2SH2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14b823cad453fdfb47b343ba0a7038eeaad950575251e7ca9586e811a1b0374. 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/BRDEP2400134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c285e48d5876ce3c770f0b4c69e9cef6ac7af63ff89afa8c5971ab8b31a1040. 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/BXSVC2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5791ed6301e3d740bd969be94af252c4b34d4e757144878f2675c7e269a3e2e. 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/BXSVC2200021.