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 0x3e8e94cf51d75cfaea4edbfeee4937e37654b45dd4509e515c93cb2a3a36866d. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c61bc04a-43c7-4a37-8305-62a21a38a32e.json and https://artists.proofprofile.net/proofs/artist/c61bc04a-43c7-4a37-8305-62a21a38a32e.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 0x35655313e1950f2b79748920d0231e4bfaee0dc9f30f166d17ad96f95aa8249c. 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/BRBOP0300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b131622762ed00d10f2ffcc7efc80feea262d4aa99ab259b502cd3ce3e15958. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BRBOP0300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178efbe2338490c30578bde41a7b2cc62bdecb1d8585c40df51821473491fc71. 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/BRBOP0300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753b39bb368ef5a028d2beba915726f6a8a0bba727ae573ff38ef6a7437e506f. 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/BRBOP0300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7a0f7230f3569aea88662dd1daa2f5f02b4b6102f0a70ce8f1b76b2e87c54d. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/BRBOP0300003.
Eu Não Me Esqueci de Ti (feat. Banda Salluz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac62c1754ab6b8464f85e6112fa61660bbb33b68c0fa4e52e120b374a64683f. 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/BRBOP0300002.
Alegria do Céu Interlúdio (feat. Banda Salluz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932067b2d741ec1819e032ebd5f12f1ad970fcd7c620d091b898eb3dd6fb6bdb. 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/BRBOP0300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca22d2ef8e22a7cd77c04f38a2bfe26f09d8651b843a3111969c80358200cf5. 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/BRBOP0300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb830418ccacef266778da3d5f478c19d1a179ee59779e61842490eb229577777. 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/BRBOP0300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7547131d2a1bc18898558f4bc48fc3fbfc5accaf593d55c45c1471ef74d276. 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/BRBOP0300011.
Eu Não Me Esqueci de Ti (Playback) [feat. Banda Salluz]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc82ea4e9b6da1b13625eecb44a3320483321aeea4e353e2e5a24bdc42e5c20. 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/BRBOP0300200.
É Bom Louvar (Playback) [feat. Banda Salluz]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc84748b974841753916d9cf8306abd8adcdd077e6785cfec56ef580e4adae8. 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/BRBOP0300204.
Eu Sou de Deus (Playback) [feat. Banda Salluz]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6ccbb8afc71493005a1940c3daa512afc30b27201ab8ff0e139166fde1fd82. 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/BRBOP0300207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9807f2812e8c53718e3b050c6f14f59c4cbe445234c3014d977ea564e4ca77a. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/BRBOP0300008.
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 0x6d6bb42baae85f0a3d90d2b8bf5bd2380b8141f92904c4b3eeac64e6c6817d5b. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/BRBOP0300001.
Homenzinho Torto (Playback) [feat. Banda Salluz]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd8f4f30a3de4382409d92714b8bbfacdb108ec068a2933f53aeaa9aea3a284. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/BRBOP0300203.
Benditas Lágrimas (Playback) [feat. Banda Salluz]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb878784117acb5f1402c7a013ba5d7400156f90d4ad060964aeb69db261e867. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/BRBOP0300205.