Nicholas Lens Noorenbergh (born 1957) is a Belgian composer of contemporary music, particularly known for his operas. His work is published by Schott Music and Mute Song and distributed by Universal
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 0x427a59887d240f66b17795dab4a8cf7f5dbce24d09de8d4eed49670ad76529d3. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9842137b-a774-4fcd-9cf2-3dccde3578ce.json and https://artists.proofprofile.net/proofs/artist/9842137b-a774-4fcd-9cf2-3dccde3578ce.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 0x9b5b5216f2be9a15a45cb29a9ed1632086cbb872f6c82e7fb55e96d0110b99ae. 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/DEN962001560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ef5e9f8e38e981e35a306bb5153c8316334a8f4ec6c1fd1ccbaaa7bdbd96f1. 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/DEN962001590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f9274ffcb96bca99a59df16b7ac20f2d61ec7a74094e56e9c1943e838decb5. 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/DEN962001570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe7ad389fbf203c1cdb5434c5f8c93301c9736e4ed88789b1116e1bc18f68e5. 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/DEN962001500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123150ef00bfb289c6f4ad814997763630f3654a4da301f2df961ad706c242a1. 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/DEN962001510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c6c99bf40f72b22446b974048ed468ca7cef18307d67ed769a50448e660ae2. 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/DEN962001520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4849d87992ec3c45e70722b649e9a044130a88202b856047e73f61bb8f707fa4. 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/DEN962001530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1477fd3e78acf7cbc58b9aecf77be52d322753cd396097a3e2d0b92fa9087d25. 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/DEN962001540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad48205fa96f3abb22ddb1a8e51e0d9aa586ece9bb35e49d6963a127bad5f62c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEN962001550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b5b5216f2be9a15a45cb29a9ed1632086cbb872f6c82e7fb55e96d0110b99ae. 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/DEN962001560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f9274ffcb96bca99a59df16b7ac20f2d61ec7a74094e56e9c1943e838decb5. 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/DEN962001570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c6b1fb118f0c8667712526b4ad9e8a48e34b81e8d688aa784ae787ae5aa3b9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEN962001580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ef5e9f8e38e981e35a306bb5153c8316334a8f4ec6c1fd1ccbaaa7bdbd96f1. 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/DEN962001590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9aa6f88e33f7057f04e3c4de2155739bab7dbdbb41dac85b8b56baf0150e54d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEN962001600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9940789e6a21bec65274e1e4947cb30d0271265deedf453cfd22d378e2e30c1. 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/DEN962001610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa938de206b937b7715d9d673d53c243eca9f2e0d23cddf82bde908ea51e866a9. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/DEF302300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6a54c1bce9025352138151fb12e3d8662f7813e5d2222fa922eb32294e6cd3. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:10:28Z), 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/DEF302300003.