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 0xdb9033e318cacd8df8444cf215f8ab5f8932879d25f945902b90ccc1282dd9d0. 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/908f6332-4ffb-4636-8c2f-94a35cd733e8.json and https://artists.proofprofile.net/proofs/artist/908f6332-4ffb-4636-8c2f-94a35cd733e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
MC Maneirinho E Tz Da Coronel Um Minuto (Extended)
MC Poze Do Rodo MC Maneirinho CPX Tá Tega
VIDEOZINHO PRA TIKTOK Vs QUERO VER VOCÊ CAIR DENTRO
MTG CHURRASCO NA LAJE & CARRO BIXO IMPORTADO
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 0xc7b4ed2658fe1273de996f67f5dbb809790264bdfac6324666cad04311e5f928. Chain 2 (Bitcoin): anchored in block 958963 (2026-07-21T04:02:02Z), 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/GBMA22327390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6308d69a69364100c918dfc3e64ba48c9df69f044e5594eb670168a9684f77. 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/GBMA22327392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d90a21af7eceb91906b99f90b96d580e55a9b729549777f1a0070bb74430498. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBLFP2426852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3f149c5d393bc195b395fcb05ca190afb4195f2f6fc565942312848826e36a. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/GXD7G2300089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642a3bc74518f2a3e8e098fd3ceacb941f59c44ab591db17a0300afe8aac0811. 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/AEA3A2458357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13eb299732c175e1ab2ab2f153c0e5e7390b6125a001d82c2e2a619f8255978. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/GXD7G2282243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac28173de74d87c2a5e845770a8feceba0e93e8e3a30caf2364ab7f5f4ebe98b. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/GX53U2486163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44a8db2d1e40e6eed6c9c98cb1f518134967487ae44b1d92bda091598e5aa57. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/GXD7G2508269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5d0df22958e79685e5509d9c1f5d52052ce83562c74aa1d06ca201f531f298. 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/AEA3A2525821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb468167708889ca116c4e871b618ead6a6ea3c124db6ae911f1d5213709bfa89. 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/GXBAV2136854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa2e1f626fb323e7fa94651317dcca4980f7040a9a1f85f648b3ee8aee2d920c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GXHND2544165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a922959ad34cd1f1b22f594e230be4af3fa0c118390f0110370f2efde38b62. 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/QT5M42508549.