Mulamba was a Brazilian rock and MPB band formed in 2015 in Curitiba. The group is an all-female one (including the production team and roadies) and they write songs discussing violence against women,
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 0x4034ac27c7d6b767775f3fbea8841c144d8318b12109aca1dcf3dea94866f2db. 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/71ca569f-e686-4df4-83ff-e46aa85687bb.json and https://artists.proofprofile.net/proofs/artist/71ca569f-e686-4df4-83ff-e46aa85687bb.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 0x9758ebad209da4e1b554896579ea3e188b0653fc3700bfedd93980e4e75977d1. 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/BX0AC1800006.
Provável Canção de Amor para Estimada Natália
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad756ce5075710e0c54ad1b1b7ced392464a0d678cd1de0d6189153e8dc91934. 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/BX0AC1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5dc0b65d8e75aa673de7201d8c3c99f73c7c5dee33da0ca0a6114b2f2ad351. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:57:20Z), 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/BXV6C1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033693b14ecc79387f9823a4dcb8c4bd4a8c79e1123dc2ba242024643a402d06. 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/BXV6C1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193830559be331dc82f6aae786871bf3c6d882b4e6fda30dee5e0245349b75c3. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/BX0AC1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ebfcda5900cfaf76a07fa7426b2887c41b38bebf39a67413577728cd1c959b5. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/BXV6C1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b95794f17e89badc21c633fa82d7779504394e8e784fbbc8c611aa472fc0f45. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BX0AC2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a163eb05a8f36ec7c2a5d8f7a7a00f493245469016a1f94e33a4ddc7d186ad. 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/BXV6C2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c82dc32efc4ffb0cd574efb24639a4c05b69c585317951259598a2e4eedcbb. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/BXV6C2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b91ee1a026a6658120df269fe43015fca1a15e2cc959d6369882c667d892c1a. 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/BX0AC2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4fa2f4c97eca928a47d29f226d9191e276724cae135ae30a4d2142ab5cade4c. 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/BX0AC2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c57e4a6d892dda7fa75e6adbac6152b6b21c52a87cd75efedb00827bd288ee4. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BX0AC2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb660c304c44c14c72982d909b900aacfb384735b42bf10c562c76e703e43e167. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/BXV6C2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde35af1a808155ba985bfdacd8da42a5075c08e62559debb91d7259ce7c39c56. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BXV6C2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda536a8be3dae9612c32e84664626e7079494c19acd0c0fc1300baceb67d94d. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/BX0AC2200007.
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 0x99be31f24ef67e2fe498eff428d6c7f9158e13fb24087b8526308732d8eb35bb. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/BX0AC2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9759d1ae554a58c2c94a7c53d46bcae30fe531b35a47f144ffcb4111f5fe10. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/BXV6C2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b96f2c0bb7a26b732009b2a0019cfde75a7019707be7bd8eb162ee5acfd123. 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/BX0AC2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c2cd393fb408da78561262eb3b7ab3c559b37d45e0e61c623483e7d56508d1. 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/ES71G2116862.
A Grandiosa Imersão em Busca do Novo Mundo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444e9e5079aa56f42ca09f23e273aaa61d9118e4cfd723d8ae85c5b5a1e19756. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ES71G1941071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d3351d22dc9889948874f302dfcaa1a2072b4cd3e834fa45b2d13d20473b4e. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/BXXL82200001.