Joshua K. Willis is an oceanographer at NASA's Jet Propulsion Laboratory. His area of expertise is current sea level rise, as well as measuring ocean temperatures. When sea level fell from 2010 to 20
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 0xc56e0efbcc31da3986ee5319a6a289df4f262819dcbafed812ba05971efa89bb. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4626b661-2f16-414c-a92c-0d350afd1787.json and https://artists.proofprofile.net/proofs/artist/4626b661-2f16-414c-a92c-0d350afd1787.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Banana Jamz (Music from Donkey Kong Country)
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 0x7a96619ed4a7777bbc7172924517136e7ed575323514e5219a3d63b693350503. 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/QZMEQ2125717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f02b30b7096f2cb44b481a7e3a68bac3ada9e66d62694c5074a9e310266282. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZMEQ2125719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc4c831bad6b2f52d031e37e6cd747b1d2cb396eb0a1627cead4eb076e5967f. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZMEM2158729.
Banana Jamz 2 (Music from Donkey Kong Country 2: Diddy's Kong Quest)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf633df96809882ba844f98e66b2a32144279feaf28576a0f23bf5c8fecdf90fc. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNWZ2106808.
Devil's Curse (Music from Super Castlevania IV)
Battle! Pokémon Trainer (from Pokémon Gold and Silver)
Team Rocket Hideout (from Pokémon Red and Blue)
The Battle at the Summit (from Pokémon Sun and Moon)