Carrapicho was a Brazilian music group, created in the 80's in Manaus, Brazil. Members are natives of the state of Amazonas. Its lead singer has been Zezinho Corrêa. The group has sold a total of more
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 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 0x33416b92e3ecc5af4c6cb4e1f5d7a08a9418d5f9a478a45b630ac3c9b4e74dc0. 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/823cc33e-b6ab-487e-9cf5-6c07cc508c87.json and https://artists.proofprofile.net/proofs/artist/823cc33e-b6ab-487e-9cf5-6c07cc508c87.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 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 0x308769b7df1b963e3938fa1f8f44c5e1646099e3e17e387d6abb83b05c1ceebf. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/BRAPI0401336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97aa1a37036d839505505d31f321445e2f755856ed55ee36d720445bb49e39d. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/BRAPI0401338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda78e5683f58f76e40d014b3d94a236aa6bfa82a033158baf99c7150950d6cbc. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/BRAPI0401339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9badc0da6204568440844c590e3daf016a68e39b4963aa7a333f818bf3aeae55. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/BRAPI0401341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0167be80bda0a2e2904b1dbebbd239f86e904dd926e2a7ff9e45b278a8161f8. 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/BRAPI0401342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4224684751109318cefac047146d25c09e4a24c3e2872f44b6a955359e53a02a. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/BRAPI0401345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf088d2196ace826533eab982dc4bbc09939269a941be2f604fac4acad8a550f. 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/BRAPI1900297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e69acd60281fb531882f9de94f34e2a567ee95f1b9d882cdc76de36ef304a5. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/BRAPI1900299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9bee0beddf60cc373e03bc2b9822396f0d5f4741bc1dbf07fdd74242c0f7fd. 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/QZW9L2297120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567d142ffd64e40d58e67daff5ceeea367fa03cbd3227bcf0f479eb7f9fe75c6. 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/QZNJV2089547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b444d0518fbd1a74ce0d7a79796aece47a09247679c7fc8cfb5b55d58608522. 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/BRWMB9700858.