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 0x7b3714834c7aa18ce3fe05507931c0352aa884f8c01541a3fffe19d73791d756. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca5fc168-f600-410c-9fac-848baf1144e7.json and https://artists.proofprofile.net/proofs/artist/ca5fc168-f600-410c-9fac-848baf1144e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Você Jogou Sujo Comigo (Feat. Pedro Soberano)
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 0x61305664b507f73a0debb835f0b196373f52f42fe2ae3d0b7716627eeb788f9f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/BKFJA2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec77995edfd131f76be7a7b81caefee012250a8eaafd976266c4e40435d8090c. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/BKFJA2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b47417fb0831ea3e89d649401ddf523d1f9e8be26f38bcd1a56e8b26b26011. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BKFJA2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902524d4de9ad6b07c79f1a5999edf18af476e77da916487036f9bc48941485d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BKFJA2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d65ba6a1c1fe6fa2f6d9a9f295432809e5e255b23e42489e9c7e753c9c84bd. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:30:11Z), 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/BKFJA2300010.