Cachorro Grande (Portuguese for "Big Dog") was a Brazilian rock band from Porto Alegre, Rio Grande do Sul. Career The band released its debut self-titled album in 2001 to regional acclaim. In 2003,
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 0x4745ecf48d448162b8112aef729a10b9bc252a8a339302e85c2044fd68864e8d. 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/10c85483-7767-43ed-9992-9e7453a9e716.json and https://artists.proofprofile.net/proofs/artist/10c85483-7767-43ed-9992-9e7453a9e716.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 0x527751f264cbf16c81f17e1b005023923351f14d4ecd632efe38dc61a0d6bc68. 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/BRZ9C1800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b5999ef32ed527c3e488ad9343a51cbf3c63ac3016c6cbe1963037a4e4868e. 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/BRZ9C2000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251a37616f1a75c56114c9c27beb6c93e55ec20b0399f8536435c129ebe9edfa. 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/BRZ9C2000419.
Album Branco, Vol. 1 (A Beatles '68 Tribute)
Cachorro Grande no Estúdio Showlivre, Vol. 4 (Ao Vivo)
Cachorro Grande no Estúdio Showlivre, Vol. 3 (Ao Vivo)
Cachorro Grande no Estúdio Showlivre, Vol. 2 (Ao Vivo)
Cachorro Grande no Estúdio Showlivre, Vol. 1 (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5221ed897a33969395dd1402e2af7d5deaff81999f1b291b1cb4caf895c0047. 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/BRSME0500042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449fe3a1d8a0e9914e9044cd7bfdcec7083715f8258d83fdf33d3abc9aeb86b3. 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/BRSME0500044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eaea59b4677da844a66c61b86a083a4ef9b22f4a14df36b6c5b7a3699bdcecc. 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/BRDEP0500075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4abe8dcc3f1e86829ef37526b143351cdaaa19808fe9a6c6f1c063cb389dfacb. 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/BRDEP0500085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2245c82cbd8308958aab49ccfb9e134e9a87960b3a49dd876cf52704d4c30ac. 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/BRTRB0400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8cc1db9d0fa3a47b32f2d691823313b62231dea8983f61e33255be17877a33. 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/BRTRB0400041.
Moska Apresenta Zoombido: Cachorro Grande
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9a5de7e3e6a2f17b043a3384ca847299e233f197bafab9271637441bbff225. 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/BXPSR1800017.
Essa Noite, Não (Marcha a Ré em Paquetá)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731cc46e5eac30f73135385535cf12dc75e1bca2d1f4ae8a608a98c7bea00bb1. 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/BRSME0700086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd506268f054411347774276f9c77f7759f5b3fff62c64e094fd02d84c2896b. 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/BRSME2400945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d00901d3af731957655ddf83c41fb3bca1b740c7fb013a69ec1f3b9acc4a0a. 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/BRSME0700089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb823f966de38d7fdd7663c89648873bdf5862402a24efb6d871c52bd444d9143. 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/BRSME0700091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1709c9d2620d22d7bdac15080c4d46419369187ee3b57bba8eec18c22b6169. 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/BRSME0700093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83aa430a6a6468232002c9369981cc3adaa6a1378680f3a2ce2e10affd5e3fec. 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/BRSME0700100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9253971cccb5aa83399d100eb4ecbd15610950389fca224416a371b89f4a4f25. 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/BRUM70600180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a195706d9639289acc81351578ba2adb1e066790ce6595bf5bf020a2e2cf16. 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/BRUM70800621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09975b8ef8fd4d8d03488fa57948599a974708b97811d9e076ef25bb883233d. 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/BRUM70800620.
Você Pediu E Eu Já Vou Daqui - Ao Vivo No Rio De Janeiro / 2005
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a51d592bf756e2dec43145902308925c4508a05e053e8bf4653188ee7a4210. 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/BRMCA0500117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5dcb77ff60e38b157fee85bdfe8309d6d8ea21e7ebb85054a87d4e381648fe. 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/BRDEP0000145.
Breakout Brasil 2013 - Episódio 1 - Faça Sua Música