Greg Knowles (born 10 September 1963) is a New Zealand sailor. He competed at the 1988 Summer Olympics and the 1992 Summer Olympics. References External links Category:1963 births Category:Living
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 0x637ce8c01679358e4ed4f24c8bfcb5c4ffea8a2743cdebb28d0b8068ff2d9730. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f1a689c4-965c-4857-9078-f3f9bb5471a4.json and https://artists.proofprofile.net/proofs/artist/f1a689c4-965c-4857-9078-f3f9bb5471a4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Concertino from "Eastern Promises": Eastern Promises
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 0x5c72c51083a963c66ee2fdfd3c3bc738d2ce6c94983eaf9acfed24d4f0b04cc3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBF071202011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c72c51083a963c66ee2fdfd3c3bc738d2ce6c94983eaf9acfed24d4f0b04cc3. 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/GBF071202011.
Concertino from "Eastern Promises": Tatiana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1dfbbfac79c1e9a58a2b85bae4b14956447505f7f0ba140bdc6e10a4b4b5cee. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBF071202012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c72c51083a963c66ee2fdfd3c3bc738d2ce6c94983eaf9acfed24d4f0b04cc3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBF071202011.