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 0xb59d054c0deaa863ab04096e56a5c1434988e28d390d471aea0706b575ad16ac. 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/a32f8e6b-6eca-4026-828f-10454cf08669.json and https://artists.proofprofile.net/proofs/artist/a32f8e6b-6eca-4026-828f-10454cf08669.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 0x1c85ad71c9903a6cf4b2aa12076be7364b9bd409cad017b4402870001981f9da. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZ5AB2253150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x669dabfb64135d3b5aa1a667d7b338b777abf31aa74a2584037fb1dd0ccc7ddc. 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/QZHZ52281505.
Tropa do Urso Tropa do Abelha É os Filhote do Dc
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a35ff8084aac6e0db3defe0337a02c681980dc70d677f2319b1f897d2a2f01. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/BCZHJ2200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649870652f8a8845586fa2c83fd13e1ef5eeaf58e932bb95274242465ab5a002. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/BCZHJ2200017.
Puta Que Pariu Tu Quer Dar Pra Tropa do Neymar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26fa8f96e590dd58073f3355f21056572080cc8013a97fdb4b7901bca18d3ab. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZTVM2271411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6647f45dd54701e293a80731fd7d10bd461ae19269a26f703fc5c83ab7c039. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/BCZHJ2200022.
Eu Descubri o Teu Segredinho vs Casa Branca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd6152f9c64e9716ffd7c9331a2c793f7f7872794e4f1ecd5042aea1fb17049. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZW9N2207061.
Novo Passinho do Romano X Reverse (2022 Remasterizado)
Mtg, Glockada Preta vs Tropa Dos Sem Amor vs Novinha Profissional
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9110e63130faa8e83ad9c88f8b4a932558d97756126136b84c0a21906c8fc8. 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/BRSME2201052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24439f0d59b8cabaae82c0098b455bfbcf4900578c5151196d53647488935520. Chain 2 (Bitcoin): anchored in block 960305 (2026-07-30T20:14:59Z), 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/QZNJW2315373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28300b2e9c196a0d82c5d867d25ec92d15f4c89ced2244a52b36dc969ae53a96. 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/QZGLM2328016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b7e5f70239dd508cec75a8c38d37b1a78304705fb77181d71f6a9173c70b30. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZEQU2246308.
10 Minutinhos da Tropa do Menino Rei Tropa do Pozeroso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079579601909b1f26193a14348e2890b31bebdbf8e681cc49df78a99178fc2fa. 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/QZNJY2387836.