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 0xe72f9a46a1144e73e9e8338ffff85d21895fb8b37fe2384c95087a79a1522c68. 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/4ef0a16f-e8c5-42c1-884f-c2c8104abb68.json and https://artists.proofprofile.net/proofs/artist/4ef0a16f-e8c5-42c1-884f-c2c8104abb68.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sequência Pau no Útero X Quer Crlh Toma Toma
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 0x1f05ff080f40a295b7c14b9bc9e6093348bda3205b9964fa78d6ddb415caae05. 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/SGB502582366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624804e88e9768aee1a7ad575517033813e98c46bb61144c68ce4a652f527af4. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/US7VG2584732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58b5b1577d9771bddce6875a862d7d7b0659ac727f942e1106e291524f34ce3. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/SGB502518913.
Beat da Guitarra Dark Vs Fininho Obscuro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8071dcbaaca19b47c2fbc6c1bff38a44e4ef8f40cfce9414a4cc607a103f05. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BX5EU2400056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d13cb101bdf3b654104c52b78ca60b4c96deb544798c30e77e1c3a8dcf3ec02. 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/BCE7P2402358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbfe5d46c54159168968bf71000d6d6082da3bea582048682f2591fd39bfb6a1. 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/AEA3A2232810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11897444a27963efb7fff1a47ad644ca6dc6a75d9468371fb8603633a635e8dc. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZTPX2455397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bffcf0e34d1eea3752ee8617497ec4d9e0b362b2daae9f39e8996aa34e2836a. 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/BCE7P2400808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709798275649624de0d7d7befe78e22308e14b5da80f4f5f0b88247d100d4807. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BKDP52400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732c3e2f6db860f1452cff2d1cb5a6682eb7de3c49332a61d0622932643cb81d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKQU2426041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4275440313cce1333365f581c91ca37e3a18aa8d932857b150f7d00f08e6389e. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QZ5AB2433469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b287a13df56a95b63e60f71fdf58bcf1973f0dff667baeac1928dcfd4caa5ac. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZ5AB2464053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7448e5c7b45095136f944828c6e38ba53c52733fb2383bd695bba1eeb0b9b216. 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/BX5EU2200003.
Quem Perdoa Buraco É a Prefeitura de Cuiaba
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf71d359ba0c46a2d3c0dffeb151b848839ad8cd42da9d57235071351aee744b. 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/BX5EU2100127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb885ddde031ef92d1d07eea3e66d8f12648eede4ec2acfa606b610515c8b116b. 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/QZNJX2156841.
Tem Outra Sentando no Seu Lugar (feat. Cariello Dj)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e315ade740388eb58154ee66bea6c64eff49f77617af88bd06ee7c6c6222e9. 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/ESA112433438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1ba3e2568ad60b0f9c62ac4eb071595a72cd0a2d2477ca6568e2c42088aa0b. 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/ESA112433439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65bfe1ec8c4fcae5c0ff427007ce470de87151e2ef1d9b43ad4ead0d38506c9c. 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/ESA112433447.
Apaga Luz ou Luz Acessa, Polpa da Tchereca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9cda5dd46d1509fd693db43cf977e1d4d82f4201993c25942f0322bab690f90. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZNJY2332761.