David Essex (born David Albert Cook; 23 July 1947) is an English singer-songwriter and actor. From 1973 to 1994, he had nineteen Top-40 singles in the UK (including two number ones) and sixteen Top-40
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 0xe983f3026c75590a67e2f1106647c1ffe89729ef827f32f33f67606898398ff1. 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/8481094a-fd0a-4680-af0d-ff099824484a.json and https://artists.proofprofile.net/proofs/artist/8481094a-fd0a-4680-af0d-ff099824484a.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 0x716a69b515f0e18211ba7515d5e696c1432f2a1c23308717b10c5a1af778f3cf. 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/GBBBN7400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d329c782703720fd50f6c7cc04353003f3bd9051b3d4a931b7b44ba626c5b4. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/GBBBN0102125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e857bd3fe8a4edabb88e4c610900f8b0a3f677266a7420bd04409eee2456f9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBBBN0102131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7506d25198104e9998c8a2a8378546e229b8906f75fda661e47397dee17d7681. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/GBBBN0102126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c27ece3b01b0f7609cffafefd4c80470bd3361eb1e47aeebd7611f61d32493. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T19:58:31Z), 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/GBBBN0102134.
Silver Dream Machine (From The Film "Silver Dream Racer")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e68036a6932906f0d08de38c06dbd050f7d9cdebb836f0b1e627794152e85fc. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/GBF080300527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f950ec5413e486d39f481c0c6aa7736e63a17298635bf4c67d4aa167001458. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GBF067890005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9b198fa7b372d411816e68e9120385bc5b716bebfcf1e842189821d739f003. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/GBF080300517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c3e5343c70d4f404a418aa940a81b1f2f3770c90f8e8998e6d1601ce57097c. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/GBF080300525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e68036a6932906f0d08de38c06dbd050f7d9cdebb836f0b1e627794152e85fc. 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/GBF080300527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7506d25198104e9998c8a2a8378546e229b8906f75fda661e47397dee17d7681. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBBBN0102126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b4323a7f1600c5c0a54fdfab7fef69a7e0b152e7f67e005b49f1fcd4eaa6eb. 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/GBBBN7300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ecedad09f89be79673f9d8957115657e17df36f05d252f33457a6dffc50691d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBBBN0102127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6012a99d27649de85a1feb7457f786e7a64d3b5b288cb4ceb58848d32cee9066. 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/GBBBN0102129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504c20da54c40c7347b5b4befbf3b9bd89e254f287b14affb592a6124d144c28. 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/GBBBN0102130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19a06df6fd2dfd18a04342bdca2df82450f3d4e5f82271f27ea4bac10ce9d77. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/GBBBN7400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12932f8a6fbdbacb9d5c92937d67589aeb4f1ca588d1fb176e6f3181094967ed. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCABJ1279857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4abadb975854af4f17f47a4233f38d9c5ae0f6689de3964d4cb000fbb68b32a1. 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/GBURF1200693.
All the Fun of the Fair (London Cast Recording)
All the Fun of the Fair (Original Cast Recording)
I'll Be Missing You Tour (The Final Show)
Sound Of Poetry: Sir John Betjeman & Mike Read
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105ec3b90f7af34cfe67ad9dcf25f92959e40e3e53713673abe61900ac5667d2. 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/GBHMX0828814.
Words & Music - Sir John Betjeman & Mike Read
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7bc4e86c5a25d312c50da45779097b022fa5958c65f5de84025cc6355c22d2b. 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/GBDKT0600837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6104e9b23a6582edff1df901d19147e9874d89c65333716555758a605959a771. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBBBN7402029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f08d40d4abd60a2b2b0bede9765da0d58e7ca0530a3cb8cca1481b70b990483. 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/GBF088200870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d160c55954aed5117eaf360ef2f6378b1c12d2061b26d9d732bf5532aeb69db. 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/GBBLY1100669.
With Love From ... PolyGram 50th Anniversary
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f08d40d4abd60a2b2b0bede9765da0d58e7ca0530a3cb8cca1481b70b990483. 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/GBF088200870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad93720dea709d7cefd0cf9398cae92857ca8fa0bc79e9f61d0f0f7205d44fb. 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/ITA879200008.
Jeff Wayne's Musical Version of The War of The Worlds
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ff317609e47f575b4f6fde966bc24a2e209ffc3f032a7294d2594451dc6e9c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBBBN0500261.