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 0x096a8c3d187e00ce3bed79625bade497625c44fa26c23b72dadf847b75a9be6f. 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/8bd029e1-3ee6-4b0e-9804-55bf20c8e7f8.json and https://artists.proofprofile.net/proofs/artist/8bd029e1-3ee6-4b0e-9804-55bf20c8e7f8.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 0xecfb49cb4b26f8d32088304ecc462870b60db809cf210277d3873874d3fc66ac. Chain 2 (Bitcoin): anchored in block 958496 (2026-07-18T04:43:53Z), 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/QZNJY2163810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8752ecf7b667af35ddef5af727f23fe4fcd46af3150b4386d1ef245ca16b0d. 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/USANG2236518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a6757fbf87961b087c3c1f242e262bd6349e714b09e9f20767423ad8088144. 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/QZNJV2255722.
Nós É Cachorrão Especial Paredão Xeque Mate
Mega Funk 2023 - Senta em Cima do Garoto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd1f7854f981736d2edc8ef924740a46842d37715c2db470ffcfe451684ff2f. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BCSPP2300300.
Especial dos Palhaços It Tron e os Tenebrosos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ed4c474f40cf5e8b44293fd27d6915a1feba43ebf683ef4484229cbdd76461. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZNJZ2312543.
Assombra Phunk (Super Slowed) Peaky Blinders
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614ed2775fe44bbd985a80fa3def9e641d7c413421035eba689dca0857ea0cef. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/GXD7G2562721.
Assobio Infernal - MC ZS - MC MAZZIE - MC Guto VGS ( DJ CR Original )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0950babf1f54790eaee79ec08e5660ce95f562a296266b0e26ca9d00f2819948. 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/QZGLS2485603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9020597c0886d18ad1c0580e76a53de58958d6ade4c482c435c506eee783092. 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/SGB502565001.