Roland Joseph Culver, (31 August 1900 – 1 March 1984)The Times obituary 3 March 1984 was an English stage, film, and television actor. Early life After Highgate School, Culver joined the Royal Air F
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 0x8000bce921f36ef10b0d84906209079f3b4e424eabbf5c035fd666ef5c294da3. Chain 2 (Bitcoin): anchored in block 953980 (2026-06-16T17:16:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2c762ec4-9fea-44c9-9eff-da32b8e306a4.json and https://artists.proofprofile.net/proofs/artist/2c762ec4-9fea-44c9-9eff-da32b8e306a4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Importance of Being Earnest, Scene 5
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 0x0bf6997c3d70f98e7639ccaa63c7dcc1cdc363f2fdb5f6b1855d4e0fb8bced32. 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/GBGQH1918063.
The Importance of Being Earnest, Scene 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a43d4648324fde778c68f13cd6bcf4006edbbd2bfc3d7814ca7e8893bed114. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBGQH1918064.
The Importance of Being Earnest, Scene 7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7391da545a5e7a747a01be85da174a5d094436c9ebce155ada5add5ae4128280. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/GBGQH1918065.
The Importance of Being Earnest, Scene 8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460fd2cd876e6d289b499c03ed78d61a1cc38c754f16105a8d6c740040c768ff. 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/GBGQH1918066.
Oscar Wilde: The Importance of Being Earnest
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9fee7b6961511ebb1750f3a8b520a8eb0014dea1ba6368c6e6826b3b0e051be. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBH5G1400938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5566c1b13f4563bde05568223eb59e318a99d9e0bce7cb872ab143b99ae1ebbc. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/GBH5G1400939.