Kevin Prendergast (5 July 1932 – 20 June 2025) was an Australian-born Irish racehorse trainer. Life and career Prendergast was born in Melbourne, Australia, on 5 July 1932, to Irish racehorse train
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 0x146ee3003808b8c952ffa0d8a7684c9906623ea9a08ad652d72b3c961f0411ab. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2033288f-9991-4eb8-9e01-8633a5edfa1c.json and https://artists.proofprofile.net/proofs/artist/2033288f-9991-4eb8-9e01-8633a5edfa1c.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff5ce491b5202a1fab38592532992b3f08054adce24fb1d08df866c5ab3b286. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IEFJB1100426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff111a2e0c43c8077a583caf6cdb2adf1cd8509ae6e0dcce3e211da8ccaa707c. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/IEFJB1100434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd02ebb14774f597f010f392eafb40a9f3ee10f943046c88d67cf2fd7942bcbe. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:28:05Z), 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/IEFJB1100436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f5035eec86f741eb16477627b0cae6b2be5eff149df1ccb09ae8334599a59e. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/IEFIH1100111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d7bf012764c0ac261e655af28326b694c4e777dae04a451dc4e74137d10adc. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/IEFIH1100113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f10e2ba9ae54dfae733736aaaa8ca78eea81d169ae2e5e48cf0a4932938288. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/IEFIH1100193.