Eugene Stewart (1944 – 11 February 2016) known professionally as Gene Stuart, was an Irish country music singer, born in County Tyrone, in Northern Ireland. Career Stuart's first found success when
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 0x680bb6f96e49974bd95e34624da646b5ce164fe0edf4fdff59c3b6babb7bbb12. Chain 2 (Bitcoin): anchored in block 953618 (2026-06-14T09:16:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d3fb423-c50f-4455-ad77-915dce5efef0.json and https://artists.proofprofile.net/proofs/artist/1d3fb423-c50f-4455-ad77-915dce5efef0.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1fa0248275f5d2698764618d3dcbbf2eedfe1ddc5093bffbb8af2c0d0ced3e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:06:17Z), 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/GB52E1002406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3378f4f581c5554c2c50535fee3452443b3697261ee03c3edec53783853b86d7. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/GB52E1002407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf8a769cd156629c3a33fa164e4b230d6f3b161e821e742a3f4e51bea6464f0. 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/IEFJB1200286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd138c0f1c2dbde70d8f04848ca0e9d36c936fe9ee1c2cb29f4c2b70f4d78d0. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:40:25Z), 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/IEFJB1200287.
Every Now and Then (Darlin' Think of Me)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7533736027c19775f537eedc1b7b6baf288614f7bfdd0c8e0fac9b843e3780. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/IEFJB1200294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82815ed3bd552bdb2868ec9a40fa8068d3496813f40b1a739fcdc9271ec310b. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/IEFJB1200296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20834f60caf7510a3941d6753a8e4f7da52186bfaa7440a23bab1f6fad15e620. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/GB5ZE1002114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92688042ffd4b8d3818b88f625ff722e376879f39811e4993d94bb9a405407e6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GB5ZE1002115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5cfa26bf825750aeb8f0ede4d44150b63d9989fe0f9a5b045492ffb320ebee2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GB52E0250210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32962729d21b68b18b1b25e291f8740566c5a35171def204a0f739e1ed57664. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/GBHFP0407454.
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