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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6c56947751952d5d6ac3318bd660437486ea66258f99e1f7bf9ae6e567089c. 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/8d17f141-f930-443d-abab-874194127dac.json and https://artists.proofprofile.net/proofs/artist/8d17f141-f930-443d-abab-874194127dac.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7936874304c60239ebaeddc2bfe3682c8c66b2b8e840357da7d85acbafeec0f1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BXIV82344758.
Mr. Kivah & Sr. Armani: FUMANDO INIMIGOS
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1ed9ad1995e16d6ee817afb1239f03bb23db8805b4d0a751ae667ce06b74ac. 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/BXIV82376923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9488713c5e19c8be5e5cd015a1cf2dc24f55c127b0addfb838c458d566bb850a. 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/BX0902100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0db4153d03df0804d4073846525a916fd138c5fd916e1d413b6c7ee64cf501d. 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/BXIV82371890.
Chico Buarque Interlúdio (Chediak Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee865c1e4fabc0a2af586ab3faff60bc81caed6d6552e665be3a50dba899c06. 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/BXT8S2100085.
Putodiparis no Estúdio Showlivre (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a6d2951df05bdfd079291b9df483b58e21ca6f806ea36a334d97a4419fe840. 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/BXIV82241764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7e013597117a3dfe658ff69bf5c9bed5dc0fc7188fe37a6a749493aa672812. 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/BX0902100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b79b5938bf3f28c165caa1e46aa9e591a3c99dc3df0e108eb74c52263035d87. 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/BX0902100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5066283a16ed5ac54f5402b07dc154261954069293d4eb733070d94484964b94. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BX0902100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d030d77d275570cfa40be3d5bb55057a476e87d7d6886d03b11bbdfe360c487. 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/BX0902100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f68e686eab41a5bcf35f0cc3bfe5b4a3c35b2fd0da66cbdce0d24190cd5aa3. 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/BX0902100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d42fcd5616952bc7c807986dc206f121009da2d598f1056922888ffdb8772f3. 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/BX0902100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624f0710fdf0f79cc474a5e52ad48b4be3057288c0cea53ba240c45c5ea0aa86. 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/BXZYA2400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7091e8a57e0a9268577a3cfcdd138100f362b0f2c82be48d003adf2f23fce08. 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/BXIV82460007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c632606b14a6c4a85cb5380ca726bb678bbe36d736556e7a67d3d6a83ecdfc. 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/BXIV82450414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8a8552fc82a51ef573538db31ce4b5dd453d70d7be2b42263a5992f5c266c7. 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/BXIV82422462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db25d1ab30bc73313f5e9d99fee50793f777b5089d9d9f6a4266d6d90ad497a. 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/BXIV82380580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02ccccdac3411a5e1bab73324a9c37a017fce73a8ccc0d0f2bd5c7833836efb. 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/BXIV82254368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddfdead5d1ecd6f479e9892f48e2719a2a6ea952390fee5aacc95032e1ee8e6e. 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/BXIV82226432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f5897a500ce0b78bc36e7c5fa1fffd67fafca5d5079dd3281f4c93bdde4fd8. 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/BXIV82239563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfccad89746af2199d0b215526cf894e378e55037f10e40a86eb6a42e28bedcd2. 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/QZNJV2388357.
CRIMINAL EP “Relatos de um Jovem Brilhante”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fcf35f4a793c33bb1afc49e90aa6d46691359ffd5c35556db078a6850bc95c3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BXIV82321848.