Gerald Rydel Simpson (born 16 February 1967), better known as A Guy Called Gerald, is a British record producer and musician. He was an early member of the electronic group 808 State, contributing to
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 0x9027c5bb7c554772fea663968958474f6e34c2c0c3e093b88a03029955126038. 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/9203bc4d-936c-4286-9198-fe978df34ac6.json and https://artists.proofprofile.net/proofs/artist/9203bc4d-936c-4286-9198-fe978df34ac6.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 0x7ee2c2dc649c9aae56baaef6484a3e593020215733c6441b59392c9f9695d701. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/GBMA22301002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58bb11db63bbb69a543fe4c07069f8bcc07192513aef7b27fd985ba787e09124. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBMA22301003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b27b490fab4a68afbe1e333d42e3203909c33d7a9f7941bd0891a56072c89a. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/GBGWW0600029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad730d789c1bd406f4593202c0b35117098b14e6d43d60a0869b136e2b926622. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/GBGWW0600031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4b07288586b41ebac7075c621c84f8224abc1835a2e33f106efe58e4b5de7b. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/TCAEU2023055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x459c8ef5f117117e87b1dfa0820b5d7e0fc9d80a5ea28fdedc4f90ed41f6a3af. 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/GBMA22301005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c5747a2b61336d30a91d0aced6d5f74de7e37d30606b7f575a2d872baec518. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/GBGWW9900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb19ba68269dc9b2721c0968f1582185f50e4230358907b642a962704d8445bb. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBGWW1200191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db9cb98db3ac387e48b5d66b48671e37e71fd88f65621f49b1842f1d04bb9e1. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/GBGWW1200192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37af453668df8fa9b20ef81f96b03c903cb5758e0d35079b3d38b756f852a97. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/GBGWW1200193.
Balance 020 (Mixed By Deetron) [Un-Mixed Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e875ca7e2d5292438fb9f62b53832fc57c2d28b83c600e7664c3b7a9150e00. 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/GBDPW1400006.
Bosconi Stallions Vol.2 - 10 Years Of Bosconi Records
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b8eeaf73da30b4d6bf9ec093bf1b9f9eefc90b320d3c56f37dfdf751111cb0. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ITU901810307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46aacd9084d19e2aa04764e58edafc9ee3122b6eeeb25321d319c57b998ef6c. 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/GBAHJ0000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46aacd9084d19e2aa04764e58edafc9ee3122b6eeeb25321d319c57b998ef6c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBAHJ0000011.