Geoffrey James Nugent (born 14 February 1977), known professionally as Jim Jefferies, is an Australian stand-up comedian, actor, and writer. He created and starred in the FX sitcom Legit (2013–2014) a
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 0x656577a0f1b691998e6d091719fbc0eb0952ab0740444f508dd63ad0a190672e. 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/8c06df28-9233-43ef-b465-1896c2f66c8c.json and https://artists.proofprofile.net/proofs/artist/8c06df28-9233-43ef-b465-1896c2f66c8c.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 0x3a47ebb860bfa3d59292ef4eee3514fdca125635a708ff03e9f26cc9e6dc8cfc. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZ5HC1700750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3fe7fa49813302305a4b721bf5082f4cefb120656d8dca6b07edc75f608b0ca. 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/QZ5HC1700753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9e56bedd5c929bf7d0fe8cf2e623180a075173b8325abb4141236938426d04. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/QZ5HC1700755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c2d65f7518ddce48cd128c789b07f2333eb520feb2f84e2ec3b96ffd51b7e1. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/QZ5HC1700756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d84bd0795511729285255bb844dc9e45cff5f970f7036e71073f84db665eeb1. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/QZ5HC1700758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94f14b0acb2216b08605e3cea63ba7b656c920aa0ebba9c41c4925b2b4a40c9. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/QZ5HC1700760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cdf9631757843dc6c6b8ac19cf57efb6abc934192343731939a97006dc681ce. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/QZ5HC1700761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fdca5625a30e57218268f02381fea6fc577ac5a227f778c25c505b14c81c317. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/QZ5HC1700762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31dd07b1ef01aefdae23481b613b8013d775414431a6156e4528bc2135901b3f. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/QZ5HC1700763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9fefd9ca95578f290ce7d14ac10c6bf938db7d1d1d14aa93b8d6e718d270dc9. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/QZ5HC1700765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7236bf5dc9ce7e34fca74556cd219d10382435967ee6027b8b336c1d6f43a5b. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZ5HC1700768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880db1c408b877f4df338d5f34cdad14fec1f81f40bc4cd39f9c18ff75edb674. 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/QZ5HC1700770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45087ef72708de0a4658b82c6e69d84fd94655d23e7d3b32d870b74de890c244. 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/CABXX1700051.