Gareth Michael "Gaz" Coombes (born 8 March 1976) is an English musician, best known as the lead vocalist and guitarist of the alternative rock band Supergrass. He first entered the music scene aged 14
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 0x340a3d2747c763639ce0739321c2564e8f23bb0b9e5d4fa0765cdf4d128c05bf. 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/8409c761-9dee-474d-b30d-d758c1aba739.json and https://artists.proofprofile.net/proofs/artist/8409c761-9dee-474d-b30d-d758c1aba739.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gaz Coombes Presents... Here Come The Bombs
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 0xa13e59d8c4566b56a53164faa27b9cfd37754a9ecc1cf4a06798c4d83ef10275. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/GB7Y71100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eeb33ce70a7aa1991af536ae57595f0fc7fbf9289e3e0b5224d58b0d1b83b3e. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:04:46Z), 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/GB7Y71100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8806501283b05844d9a3a07458cf317ced4062c6c617ec81eb2a46b54373ca52. 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/GB7Y71100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedaa4de3699e0e76833af98cb5981b5bce153d016078cb7ac6029d62d00a850. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/GB7Y71100009.
Gaz Coombes Presents...Here Come the Bombs
Gaz Coombes Presents...One Of These Days/Break The Silence
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d942f372b8cf1bfc37e44f503eccf458c3d0f5b64b26b49dcb92b34353aa1df. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GB7Y71300041.
Gaz Coombes Presents…One of These Days / Break the Silence
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a894fd3b0ad52bd2ee791fa4501a2470f9de88f1da800cc1bff32ad3624c1c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GB7Y71400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae4745081c7e948e419e9a2536e8e0b04cf6db5a9a1606fd31b1ba2c108ec29. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GB7Y71400053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad626735f3a861dda595f0e0dda9accca8a4952bb27c8d4733bee0c54a40b33f. 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/GB7Y71400055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6a9d2c4ee375ed5ba0b3b3e7c793fa3076c1aac66392e1fcdc727773db172d6. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GB7Y71400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3617fa0df6dc786152521245c473cd9695e101ae140754c5836bfd5666198f. 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/GB7Y71400059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2fc94920c77d11c8e77d1aa172df35b2ade28c4a632c0fbffa438e6aab7170. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/GB7Y71400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3515a6d250e9ea97fb714a1a7bf70b93891a4bc6334a69be63d4d54237479194. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GB7Y71400061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319d54eb7d9b91607dfad9a6854ce24d58d01b19fa95cf32a771224229d5bd48. Chain 2 (Bitcoin): anchored in block 957714 (2026-07-12T14:35:57Z), 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/GB7Y71400063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabcd5908a60162808e279c21b97dc586cb304d00f59c8221a69c0167eae0adb8. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GB7Y71400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0149fdcae9aaf68eec71731fe295dc14af170e08cd75ce90a8e79f1f475070f. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/GB7Y71800123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf306926c6ed107df2b47c52f9f253874c32ec40920e2bb893e57fc7360cdc6ef. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/GB7Y71800127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1fc75a31bc88ec68b072041e3ffa8b944a17ca7522326a4da816e5b07ce580. 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/GB7Y71800129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadac296ff4500f758d77cfe79d939c2286bfe913ac0442f5c0f4b352f279ab93. 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/GB7Y71800130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43dbdc04fde9c5c55bc712e109afbda1a4638d3173a8097614847f74ce0e8246. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/GB7Y71900166.
The Girl Who Fell To Earth (Live At The Sheldonian Theatre, Oxford / 2019)
The Oaks (Live At The Sheldonian Theatre, Oxford / 2019)
Walk The Walk (Live At The Sheldonian Theatre, Oxford / 2019)
Sheldonian / Live / EP (Live At The Sheldonian Theatre, Oxford / 2019)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12da9d279e0b50318443cf8f44f0e002e56f232b9c907c76b8cc15fc1ab0f3d. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:27:51Z), 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/GB2DY2200433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ed0c4cd93f3e72505c6ec28b71233e1e4cb9ebb57ce8ed532127696a670570. 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/GB2DY2200435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd3015c6002214772357a05c3c4d9885a6410714d4cd0ca39d48b7159847e2e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GB2DY2200437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3bb2e9e8213200513c93d8bf98b515f8b46c2662beddb517f66f546815531f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GB2DY2200441.
Long Live The Strange (feat. The Choir With No Name)
Reimagined for Ballet Class, Vol. 1: Songs from the 90s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d44c03bad32a33bb3d01cec970a67ea311136976b378ee739a5b0a3b17e1a8d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBKPL1975781.