Lygo is a surname. Notable people with the surname include: Carl Lygo (born 1967), British barrister and academic Ian Lygo (born 1958), British civil servant Kevin Lygo (born 1957), British televisio
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 0x8293c900c8479678c65ec8011c69a7edb4064723290974a8da122a7029c51b27. 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/c6a39b8c-5e1a-45e8-94bf-8ca1ac75b307.json and https://artists.proofprofile.net/proofs/artist/c6a39b8c-5e1a-45e8-94bf-8ca1ac75b307.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 0x85049405c771866f8e12c13d0e86c4f952eb910803e22b2bf5e70308811e4680. 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/DEZ651365393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4298702cf18382b5f836f039cf44e8b9f5d0ba529df02ccb42adb66d22d5b16a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/DEZ651365394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb693479acfe116ab4e5a060e9fe7e7813cbd41c9612b83262d10f8c13a198f. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/DEZ651365395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00bf0f1dcfcbd87adb96fba3d1020d02d12d335008fa60e09ba447621b7262ab. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DEZ651365397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2c07d76ff68701cda475fa26892441889a63a54e9a364444086c7b7aa9891b. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/DEZ651369505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ca8901367f2e950a62a2fda8343dba963e054e63269a93a4ca59f4a9f7ec1d. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/DEZ651369506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9174d94770797b1af45f8d78a58ba57e81ebb66068cf5a96e2ff96116cf697. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEWO61700037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7de530da532d61377cfcfbe87ddc1f5afb350336e1b0308cc9fb363d20c85a0. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/DEWO61700038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9370d38f5dc1a4582fc658dd42657f62bfebe27edbb3123c3c7b660f332f36. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEWO61700042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ecd0c4711f534ad59e0ded09ff82a72774887c893cf3025ae005f51f6dd34f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEWO61700044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339ae8e9d3b4a5b4bf99af93d4885d9a4d9d87b8be397c89dd5a8b483aed3552. 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/DEWO61700138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5883a86af0476538ae8ba88f38e8fadf1e86a4dff1224c7222df1bc53563b1e6. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/DEWO61700372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb6c0f2370986dfb84bbd8d4b6bad2b1e98bc6f921c1a36a1d99b3f0486960e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEWO61700373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b2cf3060430aee788259237db68b058ec7ff7f353d860cb61794ac78351b96. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/DEWO61700380.