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 0xbb07483ab9e5b4bd9ff158776e7418d8d51c0cc0ad587e1b43c1db0f4b04f0e3. 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/62a9cfa3-d6a1-474b-92d5-61c4fd03c563.json and https://artists.proofprofile.net/proofs/artist/62a9cfa3-d6a1-474b-92d5-61c4fd03c563.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 0x6755921e043a0bf071499a498392cb9844b1d9cfef02cbeb9c8902c2d088b177. 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/FR59R1791113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0f1f574932ccc82b69973e50edc8882ea8e7754af868d52c73e087fdb2704b. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/FR59R1791116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b9b4f5c62fc5b09e681602307ab8d8185b43527ff8c8e75d7bc09307db5dd9. 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/FR59R1791117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099502c812317b971bd711281985599a677374ae58b3dac7a40e04556e1d4254. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/FR59R1791119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde884a40dda1b8661298dd2f8696a8c4b162f944ec95154fca8a015bd9a5ff1b. 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/FR59R1791126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ecffda2a8f581b3e0628d1ec25526aefabede99c8d51ea2e20a9873585efec6. 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/FR59R1791129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed642d352f81ef848110f10f1df18d1a7a927e5de99c4b2ee81a1229df1a453. 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/FR59R1748642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24bd6c90a2fe68ef1235e07c260d7be7b2f59d448e01f16e98ccec3648a52f7. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZ5AB1641779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9e56c5f100d1caf410c2b3801db2f0f9dd3966bb35ec138d5e498301726a72. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/QZ5AB1641781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa00a9b3eba62c55d4e37b9af589fbed7fd8048fc27df53ab45172a3628d5e5. 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/US7VG1796962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1edb95559848d1e88cae4e0da78136c3b102dac76244246eac02c654a7822b2c. 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/QZHZ41982161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57c559d40a58d4a5adfea26b643b390e3c16296e891c1a19fa52895415569df. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/US7VG2006907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa0de6afd50170c75939a48d506f5fa8fb7604b10918186a0da5e1d7e48ab49. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/US7VG2006979.
Hits da Máquina - Destruiu Nosso Amor / Eu Nunca Te Trai / o Telefone Tocou
Minha Estrela Perdida / Bom Perdedor / 12 Horas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899f9eb1702a919b50332effeb5c2ff14180ab20b74b53de4be92bc3e9d6e2dc. 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/BRHSE2400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc360d06ee1913e9db2f11c85b7746baa32b6373347411caf142f35698dad5b. Chain 2 (Bitcoin): anchored in block 957791 (2026-07-13T02:46:19Z), 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/BRHSE2400025.
Uma Dose de Conde: Romance Desapegado / Chorei no Chão / Mesa de Bar
Uma Dose de Conde: Bem Feito / Encontro Com o Passado / Pessoa Errada
Saudade de Mim / Quem Mandou Me Deixar / Deixo Me Usar