thumb|Dick Annegarn Dick Annegarn (born in The Hague, 9 May 1952) is a Dutch rock singer-songwriter who sings mostly in French, and occasionally in Dutch and English. Discography Albums Sacré Géran
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 0x0e72f941d19f03a2e50985f27e9c1b19c5adf3c896777dd480e887ef5ad44f2f. 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/c013b2b7-64a8-4d71-b5d1-f9119da34259.json and https://artists.proofprofile.net/proofs/artist/c013b2b7-64a8-4d71-b5d1-f9119da34259.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 0x2a2dab56fabd12624ce4a42014fd356a4be2b9a5db7e4305ca4ed04454338423. 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/FRZ027401640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773ebd6164188ec094cc453dee2fa5e8c1be9baf9af08bfcfa8e99052061a214. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/FRZ027500780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7173dd36c5a862c2b65e2fa0b9a8bd704512e7c747c3c51137fa47360b9dc58b. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/FRZ027401660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577cf016b4c3cf914d335da8b1964596f1a919283cff34fe473c0b11c4b25c48. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/FRZ027400620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78bf627d43e6550a34c46b721294a5c1935f3f6aace1dabe4e94648c3b8fe52c. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/FRZ027400600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa707183c3292291600c40a71080ab4da30ef476a84d00f0e96947453dca58532. 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/FRZ049700850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd829e4033bb154f9e37d79955b7b3c7f214a0a3e8a3b72bed343cb973121b7f1. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/FRZ027400550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ba325666d5306b71830c76861a81781727f8bd0aa1296e6ec0c64405a72c8c. 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/FRZ027500810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c8a3cc1533e867ecb874ac38b859e2aff1357993e160beee091f6fc85021c5. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/FR79W1400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5865eb6f71bf7c7fb91a4fb0b3fb7d715e5cdf7475f7d26c028c4d48ce3bfc. 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/FR79W1400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0c038abb7f3290b9a81a24224c6368811a97c63343eb9b537968bafb56cc11. 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/FR79W1400070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46222e9ecf3d4eb5097b550fa4eadb0e742338a9240104b0d3b3a1aee77d41df. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/FR79W1400080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915676a7bca21248ed84219c93ba905767db25a268ff83de0e2bb3cd3f501aad. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FR79W2100530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7c26b248de963354b3266c46cfb1a8763cd2a287b1bf9a0916a81326ba82eb. 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/FR79W2100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7c26b248de963354b3266c46cfb1a8763cd2a287b1bf9a0916a81326ba82eb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR79W2100110.
Les grandes plumes de la chanson française
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ddd3e4e711db0da6b4e894a55ad687ffded90b05d89d6662e37463e4cc7f5c1. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/FRZ027400580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f14dfc5f7173d4accbbe781b5394ddecca4f96a1659194590fa3724907cd76a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FR79W0500620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30547021b6777b6521e2895f9f7192a220c16dc4481d8409a48e09240c6443f2. 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/FR79W0500610.