Ernst Reijseger (born 13 November 1954) is a Dutch cellist and composer. He specializes in avant-garde jazz, free jazz, improvised music, and contemporary classical music and often gives solo concerts
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 0x6beb8b3300715d8b2d13fcd34592e4f08c8908f98272fdada9dc4d78a68d2d44. 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/107803a4-286b-486f-a178-62e271174307.json and https://artists.proofprofile.net/proofs/artist/107803a4-286b-486f-a178-62e271174307.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Colla Parte (Versioni per Violoncello Solo)
Colla Parte (Versioni per Violoncello solo)
Requiem for a Dying Planet (Music for Two Films by Werner Herzog: The White Diamond & the Wild Blue Yonder)
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 0xb1dc4a68409ae12e0901381e060089e4274ed9663d8c9a4005fa2ee839afd66a. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA290610000 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ec138d17ca518cb80907fd10c72a7ef135e1d6f3252f4db009490575707f70. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA290610200 — a six-check JSON result.
Do You Still (Three Tracks of Werner Herzog's Film Rescue Dawn)
Tell Me Everything (2010 Edison Classical Award for Contemporary Music)
My Son, My Son, What Have Ye Done (David Lynch Presents a Werner Herzog Film)
Cave of Forgotten Dreams (Music for a Film by Werner Herzog)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c5cac8d6b93b1d8cc5650b6c8fd103b08a945af2b76517f7fc3ab1a2885049. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA291100081 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fda25b51c45afa873b7c47fa5467ad4e00018f3a4097880ccc27dab2e086f10. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA291100082 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a54cecfa3e0715775a929dcbc90b019850cab1b21304cea9ac8a09f234b7d8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA291100083 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x658730a8a83e6d8c50ccf574d8f5b65a2399ac5716c38c8ee2d44530c3fe0070. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA291100084 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2baea19bcc0b5dd6a06d9d13b78d327a63147f020ad4c50ee0b7f201f535e1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA291100085 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e3c23cc4efae2eb13316a32c371a95ddfd28a8523be00ae74fe5820834d4c1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA291100086 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40166ab5fe95c248ead72d58b761135987da0a49d9e31229546bd8fdc2ba999. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA291100087 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0b9bba5e1db19ff7a016b46c49113689402bed4fcbf7c0ab574fe147789e03. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA291100088 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b243f554689a4e1668e4ede6ddfbf2d338617b6552edac8922f342c25024d03. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA291100089 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a435612573fc5e8f2c1e64429f448a682aefe3b99d4a2a44dc5bed90a1cd15e. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T16:28:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA291100092 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69b5a3c78624dab3a0b1e60ef0ff6f688c54e05fb37a269e4d68d1583fd06c2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA291100095 — a six-check JSON result.
Cave of Forgotten Dreams (Original Motion Picture Soundtrack)
Crystal Palace (Playing Close to Jerry Zeniuk's Paintings)
Salt and Fire (Music for a Werner Herzog Film)
The Volcano Symphony (Music for Baroque Orchestra)
Walking Out (Music for a Film by Alex and Andrew Smith)
Chronicle (Ernst Reijseger & Werner Herzog Film Scores)
Shadow - Cave of Forgotten Dreams [Remastered]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabbba5c4b107325c3e4c6fe26d951d08f15b0ec1645053dfb5d438f7661b1f93. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5JK2100010 — a six-check JSON result.
Gretchen am Spinnrade (Voice from Another World) - Rescue Dawn [Remastered]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70176ca6cc6258f02567e8151dadd571e7fdc5ee079ab76c0205d46aa2237f67. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5JK2100011 — a six-check JSON result.
A Una Rosa, Voche E' Notte Antica - The White Diamond / Salt & Fire [Remastered]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60e79ad47c5394faffebb555fb1c68894e1a0b4d29da091e351cae5fda3af51. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5JK2100012 — a six-check JSON result.
Still Life / Leaving Your Earthly Possessions - My Son My Son What Have Ye Done [Remastered]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea7fe46fa87d3631fc615b71f739b2d32f2558442cd4d03f783455316b38e08. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5JK2100013 — a six-check JSON result.
Brontosaurus - Nomad, in the Footsteps of Bruce Chatwin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfbd9376e21d74966d8fda01be73b48b1e6da198fd3f183378d6f0263ce1558a. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5JK2100001 — a six-check JSON result.
Ombra - Nomad, in the Footsteps of Bruce Chatwin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1036f5a20fb918c5f9a7bde5c1e019ca216bf567b6a635358cc773c7c19d9d9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5JK2100002 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf11677fa6f05a590bdf9390d337b96863d301f54d8c39ce6e6036bb17d74a3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5JK2100014 — a six-check JSON result.
Rainey Season - My Son My Son What Have Ye Done [Remastered]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a72c50d28fd4a930ee2a2708509cc391e4bdb9f246ce2f2e4f28bfd007b3fd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5JK2100015 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae508e9dbb2186bbf694e32c1be9844cf6a0e3b3035e039b7aa95a26864ae56. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5JK2100004 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1d52437154c72b2587ec241c934d1caae8c159b0ebfeaf148e6033467d8f7b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5JK2100005 — a six-check JSON result.
Heaven on Earth - My Son My Son What Have Ye Done [Remastered]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4aa0b298b0827f2610c34db0e1abeb417634deca7103020112ce22c45ec52f. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5JK2100016 — a six-check JSON result.