thumb|right|200px|A fake automated teller slot used to commit bank fraud upon bank patrons In law, fraud is intentional deception to deprive a victim of a legal right or to gain from a victim unlawful
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 0xc3ae4bfb6252eabc715632c7475ecbb9bd73af924bb5b069853fa764d3bbd709. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e7a615f-2f65-4d39-a8bd-db5dcb3b44d6.json and https://artists.proofprofile.net/proofs/artist/8e7a615f-2f65-4d39-a8bd-db5dcb3b44d6.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 0xbce60ca2ba9aa370a6ef8e0b03fe4125c87060ddffeef06c3ec9f0d648fb6376. 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/QZFZ32205894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f329fdf17f9b2d30669e23967036e80084092eaff542e9139e33f337cb29a8e. 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/QZFZ32205895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44e12d30c1fe4efccb33390539c44f4838a652560e152de63b17a1850fe6cbf. 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/QZFZ32205896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd1c6c414b4a7a3e235af79551ee5e170e92035f8a6fb35dc342742a301ad3ae. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QZFZ32205897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced7420dbb9255129614f6fc43c0e66d5563bc797f06659dbfdec2d93c80b538. 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/QZFZ32205898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1f81ab10cc22cbb26b76e09075f90ab182a09d8b69aed6ec0972214b0badc9. 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/QZFZ32205899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a4bda5bcf81aa213568719de55c1aad5f9e1cea55d0d69ea1a615a8cdbaa184. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:01:11Z), 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/QZFZ32205901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dadeb32448c62cee35c46372dd55d7b66c9423d12eb35f2c71ee63108b609e9. 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/QZFZ32205902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c92b9f8c43b53b4b88b4097ae4afc3c6f868fcb2edfc97ab3c7a92fcb1c8b31. 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/IDA141705174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8320f7f81a87445f775a9bf03fd3eb73b48adfaada2beb03bc459489882ec5. 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/IDA141705175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1470c9f44d07136b8b3540e83f98190fcc24b782d393c0179a4fbe23237006fe. 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/IDA141705176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451f35c41812cb120cf1861415b98ba85330e7218b06752669de94dd4e4d2bc8. 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/IDA141705177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d28f69a34a0b483362b8cef7d8520a3ed0791cf2c5fc2abab4c92ee2e4d9e9. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:45:26Z), 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/IDA141705179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21350ae1d02bd34f8c5e05818fe0f4da932399eccb023d4a93c4080927562c5c. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/IDA141705180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1246d67c3fae35ea314c7e0ddd398c309a6abcb4bc5612f38b38c74bb476a437. 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/IDA141705182.