Graham Keith Gouldman (born 10 May 1946) is an English musician. He is best known as the co-lead singer and bassist of the art rock band 10cc. He has been the band's only constant member since its for
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 0xb1ee724b5d57d3f4f51fbed39032df52ded2c2a70c5b22f3593e34ab9db4aa85. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f10c5b3a-c05f-4e03-b987-3ee23a09e6c1.json and https://artists.proofprofile.net/proofs/artist/f10c5b3a-c05f-4e03-b987-3ee23a09e6c1.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 0x68157e49cddb1a44dd27a7ffb27b6c95833d3d095d1c4586134aca34307dfaa4. Chain 2 (Bitcoin): anchored in block 959003 (2026-07-21T11:57:43Z), 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/USRC16808181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada946ac59a0fca80ca9986b7a026451be42c59c023488d473893421589e4394. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T13:52:01Z), 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/GBUM72204098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa7122a2764e339ba65781122bb123e1a6412169d2a925d172c10e760af59a9. 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/GBHMW2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845110a0f233463bf075f34b14cafa86b95e26b0b6fe882c41aee81cf8e67655. 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/GBHMW2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6448323e103f8a8cca12e488267921f0867a9526ed977dfcd2942813da52ce4. 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/GBHMW2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c88dbd897959ff5e1cf18d72dee70fcd2833852ea72bd14afcdb9558f8fdeb. 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/GBHMW2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0edfcfb77f6ca2050b5f4073c4b3b3fce1dd39f81c90f1b118370f86bea3d302. 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/GBHMW2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca80108833639452c38cc1f8539657f515196b64f9dd00d48acf30ab5810c7f. 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/GBHMW2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f234cd1ab780a15a94191da67b09e8df400b467073184751fb4e586d2a32e46. 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/GBHMW2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57a1afa5f4bbfd3920c6732c157a93d6d40c290e37299a5d45b53ebc56f635e. 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/GBHMW2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79a495f16212ea50df210c12688cfd6c02064cd387b9828f855fc396cde10f8. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/GBHMW2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df4252a2e0c2779ad3c8d4a2940732a6d4fcbe5d3cda446abf213af49e589a1. 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/GBHMW2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7be93c27aa4a0584965827039c38f8cea49b42d244e4455cc971e1dc921b5c. 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/GBHMW2400011.
Heart Full Of Soul - Live at Starmus Festival VI in Yerevan, Armenia, 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d1387e529b9fc36e85372152ceefc7675710578f2611a21868b7e842bba592. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/GBHMW2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55249ff8b1710140423bac11bba9c5474fd5836a73bed2246b4de6af5c73225. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/GBLLH1121701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc307307b444819d7f3d15ca12233c12bfa1a99391341b226f9b13d01ada125f. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/GBBNV9700009.