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 0x52dbf64aada310663dbbe87a266daf44e788d4fbd7bf65ac0e21bdecffdc99e3. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4ce32c7b-fe79-4039-b9c3-a04b00f44bc9.json and https://artists.proofprofile.net/proofs/artist/4ce32c7b-fe79-4039-b9c3-a04b00f44bc9.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 0x6da8ddd4a8250a2471c421799d2a92e716ef09ae8115dc7eae849a20e8d4ea5a. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZEQU2135725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5fee9ad94b672642107aa8ca0d1f63759cd35885b0f669db0663063248dbbd. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:07:04Z), 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/QZEQU2136310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1d44420e51c753c37e62ff05ffc8b7900048839db6bcf3c2e3d602a6998ca4. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZEQU2134524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b7044243cc443fd2c37bfa6950ccb360bce39b42c09606d9437feb8ac99dfd. 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/QZEQU2209668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a906f71a88078f36b2a74dc8fa138a2841da7b8aa518f7b741bf8b606a23490. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T02:02:47Z), 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/QZEQU2249514.
Pot-Pourri - Me Leva ao céu - Vem Me Amar - Me devolve o Paraíso - I Love You Baby
Pot-Pourri: Me Leva ao Céu / Vem Me Amar / Me Devolve o Paraíso / I Love You Baby (Ao Vivo)
Pot-Pourri: Fiquei a Te Esperar / O Sonho Acabou / Mentiras (Ao Vivo)
Verdadeiro Amor / Primeiro Beijo (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd900f08b750e66fb145991ef112583c22f9d96fad6e69caa3eb031d0a9cde2e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BX4IU2407863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e94b738ece739b76a1286900e8b9cba69d59f7a0078b4f37d37b2a54eff999. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:46:30Z), 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/BX4IU2408383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48958ddd30d976b7d2bfc4dcc9bac4d68926dae06fb10750d20f472c7250c182. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ILTON2506529.