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 0x8eb972d8f41cc32173e2ea58d16baff96a1f72d91c4e13aaf35ed335d7eb23ba. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6baec2c6-d4be-4f9f-a68e-11312b33e2b3.json and https://artists.proofprofile.net/proofs/artist/6baec2c6-d4be-4f9f-a68e-11312b33e2b3.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 0x9eaa7d1c4e84bada6a5515a6034079dd4bd764cdda5e1885bdccdbba1508f9e7. 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/BRSME9900261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd23bcdfc2dfc7d2449234d2233ec1b5f196e6c01959e0e9c4f71305757322bc. 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/BRSME9900262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ade78cff5349724146bd5a6d0af4b5d54d5370f2c3f7ec8390a58cac1647aec. 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/BRSME9900266.
Minha Paixão (A Melhor Banda de Brega do Brasil)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf072de6bef8e9b82cb59e150cd653e2095b1426efcb0a23787b4dbcec77e08db. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:29:31Z), 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/BRMAX2101210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7740f3394d0e37e9453c7f466635ca462b7e31a50c53f707f9b9f8270e99b210. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:59:17Z), 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/BRMAX2101212.
A Melhor Banda de Brega do Brasil (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae50a5ca56c7459dd2e9b42b7a083be509962663a5b0779a701b79601bc21dda. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/BRMAX2200237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f067e58d275e0f76edf1dd8f43f0ec0526ee208115913be8bdfaf2ba99c45d9. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/BRMAX2200248.
Juntinho De Você (A Melhor Banda Brega do Brasil)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600a21487cda7728138230ba2db0693f8d77320d49d4627b6e6a075170f4f55c. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/BRMAX2101221.
20 Super Sucessos: Banda Labaredas, Vol. 2
Banda Labaredas Canta o Rei Reginaldo Rossi, Vol. 14 (Ao Vivo)
Banda Labaredas, Vol. 10 (Sucessos de Todos os Tempos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f94fae940650c394f824757b17b143f3dda79ce1d06d9fedb256d311de5c4b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BRGRV0500727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dd1671ec062539cf3db0c94de3c11b847192c88de9e1fffc07c4eb68c0a2a0a. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/BRGRV0500733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a5cb29d5badec6c0c39cf6495b043adc14e14e7e047e62a48056ec475272f7. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/BRGRV0500735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0ff2e041238fcd2c77154131fc3cc1b984fe37ae27f646331622c904e5ea19. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:07:42Z), 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/BRGRV0500739.
A Melhor Banda de Brega do Brasil, Vol. 1
Banda Labaredas & Amigos, Vol. 1 (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609a213d98e89944f4fed5add3d58420c0f5aee43d2d30607cd602d09fa3b2f7. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZEQU2060265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c21282383bc78efb3f3a3e4ab81f4c4e02e456707afbfd10a6024a886c7878. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZEQU2060279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95324bcb44e251432caff12ccef72d0275b5ffbd825918ee24dabd552c892225. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZEQU2061284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046f2056f0d63326d7fc145eb8a945734ec09f645657a804f656c1df3090360c. 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/QZEQU2061286.
30 Anos (Ao Vivo em Clube Internacional)
30 Anos (Ao Vivo Em Clube Internacional)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdae1c4a19fa9ade00d19b756bc657666c541fb172021106ddd2a5acbefe05cf. 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/US3DF2147344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c4339082a70c70fc2dcab98f5192bf64e113025ab732ed88db9c9563915eb6. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:14:18Z), 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/BRMAX2200698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7ac2b9ee2469b2829b24dcaead854a4d301805626b25e212258ebb9d3d3640. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/BRMAX2200700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea1369cd2e7d39ade166dd53d3448e5c6964b639d4e99aa731171db6a57778f. 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/BRMAX2200705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250b779779a0ba66424bd1a45218926f5813290ed36a425a3bb280b58d894920. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/BRMAX2200710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fb3174d4172ee0829ddc08454be18160497568e81c0a4d26e56853549b7e25. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:55:31Z), 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/BRMAX2200713.