thumb|Christian Eggen Christian Eggen (born 8 January 1957) is a Norwegian composer, pianist and conductor. References Category:1957 births Category:Living people Category:Norwegian classical compo
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 0x76b47709ca815aa1dff6c2dbbd5e6557563b2dfe1901abeab443d3abb75d5297. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3f8d71b6-8acf-46bc-ac30-04b7b3be5abf.json and https://artists.proofprofile.net/proofs/artist/3f8d71b6-8acf-46bc-ac30-04b7b3be5abf.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 0x5705aa79ddbc86d097370d583d3e5143d001be9b37f4184e556c253e065e57c0. 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/GBBBC2301125.
Norwegian National Opera Children's Choir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6710384b0072271122a5dbaaefb14d754cc0363136826c9880243ea98da8a462. 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/GBBBC2301129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45d2cac55da68e199ad84f54b39f7411687a4b076219559836409e8661ed0d0. 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/GBBBC2301130.
5 Christmas Songs, Op. 1: No. 4, Julvisa (Orch. Eggen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a4a504632906911bc1da7064f0ac573d184b6c2ae60200d09b2b05a008c833. 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/GBBBC2301131.
Herz und Mund und Tat und Leben, BWV 147: Jesus bleibet meine Freude (Arr. Hazell)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fba89311e350282d8a2b5b7f4d96edc9444506639ccdfb4e73396237b90bfa5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBC2301132.
Ave Maria, CG 89a (After J.S. Bach: Prelude in C Major, BWV 846) [Arr. Sabatini]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a8f798afb49a8e6720d9f9399f8a54beacd28197b1ce663ea3ef4eda853fd4. 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/GBBBC2301134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc256d2cf943784ecd1e4524c1f45caf32fb911ee5ec50618a48463c8765eebb2. 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/GBBBC2301138.
Gounod: Ave Maria, CG 89a (After J.S. Bach: Prelude in C Major, BWV 846) [Arr. Sabatini]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a8f798afb49a8e6720d9f9399f8a54beacd28197b1ce663ea3ef4eda853fd4. 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/GBBBC2301134.
Valen, F.: Orchestral Music, Vol. 3 - Symphony No. 4 / Piano Concerto / Kirkegarden Ved Havet
Le cimetiere marin, Op. 20: Le cimetiere marin, Op. 20 (Kirkegarden ved havet, the Churchyard by the Sea)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021da6ccf0a8e22909cdba046e9b27fa3df76a5119f6854d515e503288188cab. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEQ0842010.
Valen, F.: Orchestral Music, Vol. 2 - Symphonies Nos. 2 and 3 / Epithalamion
Valen, F.: Orchestral Music, Vol. 1 - Symphony No. 1 / Violin Concerto
Cikada Live - Huddersfield/Donaueschingen
Bjørn Kruse: Chronotope (Concerto for Clarinet and Orchestra)
Cikada Live at Huddersfield Contemporary Music Festival
Eivind Buene: Possible Cities / Essential Landscapes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6056ce2f4ad8b9c4c1bd6a2e03ef7efd1f06a92cc20010c3288f5f8dbe6a602. 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/DEB330179801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699abff0d2ee9bd9f6952fef79866fbb2fb7860885a02104ba67c64823da5003. 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/DEB330179802.
Schaathun: Actions, Interpolations & Analyses
Cikada Plays: Wallin, Hedstrøm, Ore, Persen
Seven Disobediences for piano and ensemble: No. 4, Spin
Legends For Harmonica And Strings - I: Prelude And Telemark Ballad
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e3e7df3d7bff53678dd2e32cbae34198fc2004782f3a5066954cb023cbc165. 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/NOFGG0498060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60affac938009cd2c165227a5ab4f46345acb02d7d1a4650b4d4104713c4a1f7. 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/NOFGG0498070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44bafa47b353a2dbd78120985fc740dc933d23b26f993ab82c6c58cf7c1250e0. 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/NOFGG0498080.