Monobloco is a Brazilian bloco, or street band, that plays during Carnaval in Rio de Janeiro and is also a professional touring show. Unlike most of Rio's blocos, which tend play one type of music (ty
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 0xae6b0ab130fcddd657f1bcf617ba834bb6509c8acd97fd14d1653c379d829ee8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9402275-248e-48d2-89a0-d8dd8d781458.json and https://artists.proofprofile.net/proofs/artist/f9402275-248e-48d2-89a0-d8dd8d781458.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 0x7968abfcf52f2e6ff83fec02d82173549af2f6cdfc1dec8f65a056effd4582ad. 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/BRMUD0200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc76f0a185b94900315effb3a3b98efea87527c2bfc267d386ef0a7003c3313. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRMUD0200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf036153dc5a879dd225afdab01e89ee69b3bcc90e759065eff850ff79978100. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-21T22:42:43Z), 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/BRMUD0200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2bc6fd189c3cdedc01b7451bb3d6933cd3bdedaac3577d642207e9e13ff8b23. 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/BRMUD0200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692693e58d8ce5bf03b9291e8267e01e6258c330df363fe8e90724aec91215d6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRMUD0200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bedf0ed699f55abbce4645fe39513d344d181ac3f54da345e2e3a685b939cba. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRMUD0200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc34afeac0c616b3222aa711278e583dacf2e27425b07cc258fb6d52039a1d92. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BRMUD0200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc749804ea27bb9156dc85eb8cf8ee2b5ecd852c484acd27221e99a31041f71. 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/BRMUD0200014.
Cabeleira Do Zezé / Allah-la-Ô / Mulata Yê, Yê, Yê
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9b8eaf8ffe9b718fb9b0c6120335d4253a24a315de6fcb1dc63efd2a4221a3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRMUD0200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b67d27f880141d4d74346d7728046a9c805f6abcaba28ae8ab8fec4f61c7f2. 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/BRMUD0200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a57f31756a8516a6dd7ed2a6a67e9c5e093964e05a978e70610845f184c170c. 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/BRMUD0200004.
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 0xf7b41d1ef416cb55d1cf61241776d78cbcbf152421c1d0ab69abc97e2a343b23. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/BRMUD0200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63d574fb08ae9a9e773ea6c9cc3906922e33c3cff4e4470373566e01d0d2ae8. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BRRGE1300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48972e9af95d69b520c88a0e63105a68e8c3aa6efb2b7b8677d991f119689892. 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/BRRGE1300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274bcc854ad3c9de1503ea3ecc53cbcc37ba5112e4dcc96f2aaff7183a4a6887. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/BRP7S1300001.
Todo Mundo (feat. David Correy) [Mix Master Mike & Mario Caldato Jr. Remix]
Amor de Carnaval (feat. Roberto Barreto)
Arraiá 2018: Queimando Lenha / Fogaréu / Nem Se Despediu de Mim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e2eb779520886ff2fd7f30f08aa25bbfce918fae7d22b78ec92a5363829831. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:28:13Z), 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/BCSID2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5793b2e5a2fe9d4a4272d1440b6ee1c29fe07a7a3bf124f02ba32d8ba89501a. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/BRRGE1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abc328379132a8ee9dc7f3a7d8f3815d02da90932a35623dee7a7036a000979. 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/BCSID2200001.
Lucro (Descomprimindo) [Ao Vivo na Fundição Progresso]
Lucro (Descomprimindo) - Ao Vivo na Fundição Progresso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5d8d897a718e3a5667fc7d61483583ba612ea856d8f2e0b28de8456f341135. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BKDIV2500037.
Baile do Dennis (Ao Vivo) [Deluxe Edition]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6e2dc6112d578c417f0455dec7aa987e340ddd60ef172d398ec96f382012f1. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BRT3O1500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6e2dc6112d578c417f0455dec7aa987e340ddd60ef172d398ec96f382012f1. 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/BRT3O1500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06d5b6de836df1a0582f491c8a4f70066a7522babf0deafe243071ecc35bd00. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRED61200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f7957293ea79425352852ec8c1660948e2410c1188781434285b13abbbe5c9. 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/BX4X42400001.
Chama a Preta (feat. Monobloco) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd76f198aa436346cffe5ff4fb00eb850ac4256badeba5e76b7a850db5e0c180. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/BRD1E1300036.