Hans Gustav Fagius, né Andersson (born 10 April 1951), is a Swedish classical organist and pedagogue. Biography Fagius was born in Norrköping and studied organ with Bengt Berg before entering the Roy
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 0xf781d4af9be8192d07cc7118ced80830615b9eec6aed0436f04f7f2fbb3e38c9. 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/6bc32c95-a491-4a18-a3c1-04e90e7d03f9.json and https://artists.proofprofile.net/proofs/artist/6bc32c95-a491-4a18-a3c1-04e90e7d03f9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bach, J.C. / Wesley / Hesse / Merkel: Duets for Organ
Toccata & Fugue in D Minor, BWV 565: Toccata und Fugue in D Minor, BWV565
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 0x1e8bde573c62a36938cd854b9a2edb92790bdc91559055189304a28e1119bd6d. 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/SEAED8765010.
Herz und Mund und Tat und Leben, BWV 147: Jesu bleibet meine Freude, BWV 147 (Arr. For organ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91ee43653f3fd612e3c2ed08c7c94d759a5e97eecca163e6c69f8cef512beb9. 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/SEAED8765020.
Suite gothique, Op. 25: I. Introduction - Choral
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf492089832ec5168fa1649dbf7e3f374659dac099ab84e86f4d0565516f33d9f. 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/SEAED8765030.
Suite gothique, Op. 25: II. Menuet gothique
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64df04eb9ff5cee421d2e5073e5227c4842e6cec2bb4aa060421509745082001. 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/SEAED8765040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ccf2489d91eac04ec52ab07ed6157b3f249545b360d8f6e615e4f35f4e571c7. 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/SEAED8765060.
Gammal fabodpsalm fran Dalarna (Old Pastoral Hymn from Dalecarlia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084291836ef6274329d66ce95b47b1eeee8d51d49aec40e5a7f9ea46af54e1ae. 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/SEAED8765070.
Pieces de fantaisie, Op. 54 (Suite No. 3): Carillon de Westminster, Op. 54, No. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a22eb21abcd2e6e78226e129f99c8aacad6c07b1ee80b25de830dffd009859. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/SEAED8765090.
10 Pièces pour orgue: Dix Pieces pour orgue: Toccata
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f68909ace7b9dc4fd7b9ed7f2c6520ecb2bc68e8358f1a1f0e71fa3a27c8668. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SEAED8765120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b63b564bb5b97a9dec5253e6f3540a8f8d4b2157d01be3bc0d7be2a33f21bb. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/SEAED8765150.
Dupre / Frank / Karg-Elert / Peeters: Works for Organ and Piano
Mendelssohn / Bach / Saint-Saens / Boellmann / Lindberg / Vierne: Organ Music
Hartmann, J.P.E. / Gade: Works for Organ
Hans Fagius - German Romantic Organ Works
Sons and pupils of Johann Sebastian Bach
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82796e17752f59185eecce37cc38c8b61e59b8b837a917ed41d06ea4ac66d954. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVAF1400416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e73a7a596a8a2a9deaedf5894a314ebe8fdde82b373b0ed0b0cbc25fd07b10b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SEAEB9457110.
Fantasy in F Minor, K. 608 "Organ Piece for a Clock"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a51b447c80caa653f60f8a176e26806d4a7ac042441431d56e95019c40f771. 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/SEAEG9206140.
Adagio and Fugue in C Minor for Organ, K. 546: I. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00150e2cb35be80c60cb903ed3ef50c576c581fc5a81da2a5229607ad44741cc. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/SEAEG9206110.
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