Mamonas Assassinas was a Brazilian comedy rock band. Known originally as Utopia, their musical style employed a humorous mixture between rock and a wide range of styles, often borrowing elements from
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 0x5b6664fb1f51c4f1453e50cde22f91d5c0a5b74e3f3197f0213632c380c48c92. 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/d7ef6a77-47f2-4189-8657-d5a626982a49.json and https://artists.proofprofile.net/proofs/artist/d7ef6a77-47f2-4189-8657-d5a626982a49.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Atenção, Creuzebek: A Baixaria Continua!
Sabão Crá-Crá (The Mad Ku-Ku) (À Putanesca) - Ao Vivo
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 0x28dcad1f29aac2e04de9a335e3305b77c665e7d6b3d4331ca13143f2bb388942. 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/BREMI9800154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d32745244d4c4de3151e73ae9dfa0469af7c7692ea3976ad16e590162c726d8. 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/BREMI9500356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1896087ec94efcaf5bf73bb66e81c0ee0352ced5702dd4b8101e6daca48f34f. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/BREMI9500366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e30d53b2ff77ba504dd7d9b8c4a9bf9395c021f20079c2bd8588790b10d9d5d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BREMI9500360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33238620bdbfa9dd6bf3352bf1ac4e8e3dbac734f5860e42c1444e00ee348332. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BREMI9500359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3012eb402fe3de91d7aa6a8773d504ee53137360e48e3f0393591d03f104af. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/BREMI9500368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d35377ddb39960b511e9400c9fcb5f8100b7d9854059b991ed259d07c49e706. 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/BREMI9500361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ed37d3a018b88c54649179b8f7b3133cb914280203f431b3ebfab890a7f859. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BREMI9500362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe227cf3e30da7fff75c631c607a571ff8dedc13d31ce913922efb1eb0ff3168e. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/BREMI9500365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fabd39fb2baf8bb01add62f4f22a0e4063d05e738daf75fa7e7bbcf3b649c51. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BREMI9500363.
Mamonas Assassinas: Money que é good nóis num have
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39811c6a23d249de431e06fca096941d55262d06929c046124dc47464adff831. 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/BREMI9500355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d32745244d4c4de3151e73ae9dfa0469af7c7692ea3976ad16e590162c726d8. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/BREMI9500356.
Jumento Celestino - Live From Anhembi, São Paulo, Brazil/1995; 2006 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769bb074446f092551300237eb66073dfa1ae8f1fab594391b72bedc33e82188. 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/BREMI0600442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3012eb402fe3de91d7aa6a8773d504ee53137360e48e3f0393591d03f104af. 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/BREMI9500368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39811c6a23d249de431e06fca096941d55262d06929c046124dc47464adff831. 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/BREMI9500355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39811c6a23d249de431e06fca096941d55262d06929c046124dc47464adff831. 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/BREMI9500355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8f0ac4af67034afc0d9e34e89f18ed28336cf546ef62a2171c80b501ebdd22. 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/BKSAI2400251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d32745244d4c4de3151e73ae9dfa0469af7c7692ea3976ad16e590162c726d8. 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/BREMI9500356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98da85fbbb580741c99553b8ab527f2a595b12da0f147105dd0cc4a475cfbf8d. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/BREMI9500364.