Guy Buttery (born 26 November 1983) is a South African musician primarily known as a guitar player. Cited as "one of South Africa's most influential artists over the past decade" by The Sunday Indepe
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 0x34b41ac06079dd1697baa3882a8255a78a2d2721a081475dbc4e48abcfb92699. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dab11a35-0d78-46c1-bc6d-6e70ccc85e9a.json and https://artists.proofprofile.net/proofs/artist/dab11a35-0d78-46c1-bc6d-6e70ccc85e9a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Guy Buttery & the Bandura Express Marimba Ensemble
Sonokota (Delia Derbyshire Appreciation Society Remix)
Sonokota - Delia Derbyshire Appreciation Society Remix
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 0x7d68c42f7da01e5b92327b1ccc08d565ef4bf3c1791599de9310cbe486c6e92b. 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/USA2P2113409.
Two Chords and the Truth (Orchestrations)
I Know This Place — Pt. 2 (Orchestrations)
I Know This Place — Pt. 2 - Orchestrations
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c761c44040ec896f889d885eaf774e08f8071b259f3f92e0180ad69c10ecce. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QZZ7N2430176.
Werner Meets Egberto In Manaus (Orchestrations)
Two Chords and the Truth - Orchestrations
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29c7f07978ea72f44515c97460869d3235b41e31a0358021862ff9a336e74ab. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T14:58:32Z), 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/QZZ7N2430166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2001047ce4b008f585559e07083305f87302eded47df0cb695b166295544de71. 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/QZZ7N2430167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecfc3d2777c48931cf9c499dbd37616c1df13cdd8661aca6b0f807e438eba669. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZZ7N2430169.
On Saturday Afternoons In 1998 (alap) - Orchestrations
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc5731b76435bdbf9cf17a387bdff05be878707fb4b75a68f52a9c3717984f1. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZZ7N2430170.
On Saturday Afternoons In 1998 - Orchestrations
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62c0f852b860692a6bd1c1f47bcb5c15535bef281bc44509601bab4eb5e5d4c. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QZZ7N2430171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b0dda1075986c449d8650cf25302d436778ff3163a6c09666f8cbb2a1e2947. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZZ7N2430172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c761c44040ec896f889d885eaf774e08f8071b259f3f92e0180ad69c10ecce. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZZ7N2430176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1d5d289f0b8b9eb406bea47b05fd3b2c1022d085fd7d51bf59bfa1e4f7b2ce. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QZZ7N2430177.
Songs from the Cane Fields (20ᵗʰ Anniversary Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860e5b74d2b2fe8a29bd8c3a71558ca7921d258c077cf79d7d87026392bb6800. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FR9W12303467.