Hugo Emil Alfvén (; 1 May 18728 May 1960) was a Swedish composer, conductor, violinist, and painter. Alfvén was one of Sweden's principal composers. His "Swedish Rhapsody”, written when he was 31, is
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 0x6ace2c14a1d7a73c3d66c4193e724cf230be985cc149e5b34be577e828d2cf1f. 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/ec5b0343-fad4-42e7-9b25-f3ef08023c00.json and https://artists.proofprofile.net/proofs/artist/ec5b0343-fad4-42e7-9b25-f3ef08023c00.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Swedish Tongues: An Anthology of Choirs (1900-1950)
Nielsen: Symphony No. 5, Op. 50 - Alfvén: Swedish Rhapsody No. 1, Op. 19 - Järnefelt: Praeludium
Alfvén: Symphony No. 3 in E Major, Uppsala Rhapsody & The Mountain King Suite
Alfvén: Symphony No. 1, Drapa & Midsommarvaka
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 0xf5379be622e71bd47e22df1a573f6e1504c6c319b72707947379c03fc277fbe9. 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/SEAEG9333060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c7626dbe74ec103259d6b7532c6b0fea2fa7464a9f7f1b937692e5299380ab. 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/SEAEG9333070.
Od Antiqua (Collector's Classics, Vol. 11 - The Choirs of Sweden)
Papillon - Works for mixed Choir a cappella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fef14f4f3ee939c9ba6ef2f61e4558dbb932bfa1dfb13b3702186bf4885b1c9. 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/SEBAA2202201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c370cb3489f4557a9f8ee98f31ea47f744dbf3e97c038415ae5168108eff6e1. 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/SEBAA2202202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc808fa624835f4120dc45c2591a222074f451e68ff3081b60f98dbdd1b583913. 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/SEBAA2202203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e500ae363f9ea6e635b7a34c3e99e48d2d823fed6924049c820cbd21cf3f97. 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/SEBAA2202204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72ebfaeadb362de7edd7d56d6cb434617be7fec137085472f50c6953179e676. 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/SEBAA2202205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b121fb5fe4735d3d82ca1daef999dc658a296d0a4082109a35342b7ae5197d. 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/SEBAA2202206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9d40b4e6236562044ee685a51e16408af95fa936416c12d2ebe0fd7507d74a. 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/SEBAA2202207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb814b52857a8cc90b2b048f90c16f2fd3f9b790cfa5703bd1dd805a05ee6eece. 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/SEBAA2202208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb548102747b7820cff91fe5d545c4cb947246f57e315b26cbfcd21e7cbb93df4. 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/SEBAA2202209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac19f0ecbcfdf6d5a41ea5487e8773eff226aaa6f9d1bf82cbb8a792ca56765. 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/SEBAA2202210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad7339a3d3be389d42b8f50bb70569d179da0346d178714f0c5aea81940ce5d. 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/SEBAA2202211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a0bdbb5a9fac0e46bb9ac496872b272a01f07005532798aab5940ffb42cae6. 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/SEBAA2202212.
Vallvisa från Älvdalen; Limu, limu, limaa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6a240c2f223d6c9a8b1331e51a23118d05cb92e5c8bb453942f12eddef435c. 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/SEBAA2202213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6c5326d39b97059dee1c06f76f8602f223abfb3d93e371942f3fd84ea739c9. 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/SEBAA2202214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e27ec6bcf7b7daf39754ab9ca86e8fd3e42ab95ef01e9a926e1a53d76886761. 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/SEBAA2202215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96950986a646fc1439e30a648bbbe9da7a37ff12af77af051b1b88994450092d. 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/SEBAA2202216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f828e4d08d7fa90aafc19b64791ddf81bf47f75077d6437336635d1deef9db. 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/SEBAA2202217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0949268316e4b0d04287f35c84e2696646951addded00163a6d82ff0e7249529. 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/SEBAA2202218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb84d911e8cf33d6760b3b316e4089253d7b57c101710faf1b3fa04be7f5636. 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/SEBAA2202219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ffefd98ca75b387a04354e36f93400be790e099f5953ef195ad9e6befb25c8. 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/SEBAA2202220.
Alfvén Edition, Vol. 6: Bergakungen, Op. 37 (The Mountain King)
Bergakungen, Op. 37, Act I: Vallpojken och vallflickan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba2772681152262645d768e5df66dc2f86a74a651a7641c73a0de4424f57817. 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/SEBAC9917010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df467bd545d37c380346f6f025be633fc2454d52d1aa00ef79f2884cad4348d. 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/SEBAC9917020.
Bergakungen, Op. 37, Act I: Forsta dansen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42caecba96bf9ae7e359450fa66dbb4ee46ab95f58e231f7181c8f8f9e16eb57. 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/SEBAC9917030.
Bergakungen, Op. 37, Act I: Andra dansen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7050bff47eaab69ab568ad3766585b186b99f096152df6aa336f0bb1d7fd92a7. 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/SEBAC9917040.
Bergakungen, Op. 37, Act I: Tredje dansen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff022959835405cb6fa4aafd8407f872b7225303780720a07d069eb29a6de6cb. 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/SEBAC9917050.
Bergakungen, Op. 37, Act I: Humpe letar mat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6915552c737067c2bb91d7a41adc1c25c1ebde542d5ff63d9c5fa333722f518. 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/SEBAC9917060.
Bergakungen, Op. 37, Act I: Sjöjungfrur och troll, forsta danse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf1629a687b9999acc19de3482f9a11b0a96af5ad767c971df46fba06615956. 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/SEBAC9917070.
Bergakungen, Op. 37, Act I: Sjöjungfrur och troll, andra danse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea511ab4a8f4a8f6b7c928bd774ea1c226f9440b03607627282fb16d9f5997c8. 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/SEBAC9917080.
Bergakungen, Op. 37, Act I: Vallflickan ensam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81726175aaeb800f8174c83392efbfd835349557e326f0a25e318d3618c16a50. 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/SEBAC9917090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126b7fad6571230257a8db01fc9d8dca4983acff2f13a488cd449382146165fc. 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/SEBAC9917100.
Bergakungen, Op. 37, Act I: Vallflickan moter Humpe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1442f8b78de45d3b93acd2f1914b9bdf04bcf48a5aa38d761fa1a20a6bf45232. 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/SEBAC9917110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c069124689469bdd38821bf0f51f4f5d5036115d162ac202c162540354dc36. 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/SEBAC9917120.
Bergakungen, Op. 37, Act II: Vallflickoch och Humpe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe529c6be9275ac77dfb93fc687ec6bb0a7e62c02ce758331f63ff1b2c85a2867. 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/SEBAC9917130.
Bergakungen, Op. 37, Act II: Porten oppnar sig
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd87259959964b830f868b639b7380c63282302c49f4f287ed461a40cb0e6ce. 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/SEBAC9917140.
Bergakungen, Op. 37, Act II: Vallpojken och Humpe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7667ec6b50b36fe9f6068280f5522a35064e5bb3af2128cbfefc6775c7a4f7c1. 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/SEBAC9917150.
Bergakungen, Op. 37, Act II: Besvarjelse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5412466e3057762ad6e63c718c543ad90ae65b24d675f5f58dcba0e82d4d5683. 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/SEBAC9917160.
Bergakungen, Op. 37, Act III: I Bergakungens sal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c083aa10b81d82bc40846d957097b3f669097ccf6ffa927b21038d809f48cf3. 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/SEBAC9917170.
Bergakungen, Op. 37, Act III: Vallflickan dansar for trollen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2f69c082569d56a148986be79028893e62424031190536880a8c020c1ae8c8. 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/SEBAC9917180.
Bergakungen, Op. 37, Act III: Vallflickan dansar for Bergakungen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba2cadfb7debba744084ab1d7ac7eed62eecd0e427f2e5b57748a5e46a50774. 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/SEBAC9917190.
Bergakungen, Op. 37, Act III: Vallflickans dans
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c0a7280832073dd9ac8753e6e0e2cc3a9ac9bca45cbed535a6c168c0005644. 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/SEBAC9917200.
Bergakungen, Op. 37, Act III: Trollflickans dans
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc262bb699178594fad101adff4090f9365281b0da45927cbb7905de53a41fbdc. 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/SEBAC9917210.
Bergakungen, Op. 37, Act III: Trollens forsta dans
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9bbef531ffe0c67bf2d728ca04be13c1e8a4f408d6d7f45ef17478488f1be2. 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/SEBAC9917220.
Bergakungen, Op. 37, Act III: Trollens andra dans
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08aa7c3d807f6d4d96c9f5359611aa7ebd00a4c8e9a30ddf0f4eb553f91206cb. 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/SEBAC9917230.
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Bergakungen, Op. 37, Act III: Humpe forsoker rova bort vallflickan
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Bergakungen, Op. 37, Act III: Snostormen
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Alfven: Symphony No. 4, Op. 39 / Festival Overture, Op. 52
At Home with Hugo Alfvén: Songs & Piano Pieces
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Gustav Adolf II, Op. 49: III. I Kejsar Ferdinands slottskapell (In Emperor Ferdinand's chapel)
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Gustav Adolf II, Op. 49: VIII. Breitenfeld
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Alfvén: Festspel, Op. 25, Midsommarvaka, Op. 19 & Dalarapsodi, Op. 48
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Midsommarvaka (Midsummer Vigil), Op. 19, "Swedish Rhapsody No. 1"
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Svensk rapsodi No. 3, Op. 48, "Dalarapsodi"
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Alfvén: En skärgårdssägen, Op. 20 - Symphony No. 5 in A Minor, Op. 54
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Alfvén: Symphony No. 4 in C Minor, Op. 39
Symphony No. 4 in C Minor, Op. 39 "Från havsbandet": I. Moderato - Allegretto, ma non troppo - II. Allegro
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Symphony No. 4 in C Minor, Op. 39 "Från havsbandet": III. Lento - IV. Allegro agitato
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Alfvén, H.: Upsala Rhapsody - Symphony No. 1
Alfvén, H.: Symphony No. 2 - Midsommarvaka
Alfvén, H.: Dala Rhapsody - Symphony No. 3
Alfven: Synnove Solbakken / En Bygdesaga / Elegie
Alfven: Symphony No. 2 / The Prodigal Son
Alfvén Edition, Vol. 3: Symphony No. 3 & Dalarapsodi
Symphony No. 3 in E Major, Op. 23: I. Allegro con brio
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Symphony No. 3 in E Major, Op. 23: II. Andante
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Symphony No. 3 in E Major, Op. 23: III. Presto
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Symphony No. 3 in E Major, Op. 23: IV. Allegro con brio
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Dalarapsodi (Dalecarlian Rhapsody), Op. 47, "Swedish Rhapsody No. 3"
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Alfvén Edition, Vol. 1: Symphony No. 1 & Gustav II Adolf
Symphony No. 1 in F Minor, Op. 7: I. Grave - Allegro con brio
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Symphony No. 1 in F Minor, Op. 7: II. Andante
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Symphony No. 1 in F Minor, Op. 7: III. Allegro molto scherzando
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Symphony No. 1 in F Minor, Op. 7: IV. Allegro ma non troppo
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Gustav Adolf II, Op. 49: III. I Kejsar Ferdinands slottskapell
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Midsommarvaka (Midsummer Vigil), Op. 19, "Swedish Rhapsody No.1"
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Midsommarvaka, Op. 19: Hugo Alfven tackar orkestern (Hugo Alfven Thanks the Orchestra)
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Bergakungen, Op. 37: I. Besvarjelse (Invocation)
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Bergakungen, Op. 37: II. Trollflickans dans (Sorceress's Dance)
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Bergakungen, Op. 37: III. Sommarregn (Summer Rain)
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Bergakungen, Op. 37: IV. Vallflickans dans (Herdmaiden's Dance)
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Den förlorade sonen Suite: I. Ganglat fran Leksand
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Den förlorade sonen Suite: II. Polska fran Orsa
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Den förlorade sonen Suite: III. Festmarsch
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Den förlorade sonen Suite: IV. Polketta: Tempo di polketta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb600c6eb300e800c43760b23a5cce8ff44c7b2d067d7dd034c943ca967db98. 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/SEBAA1400811.
Den förlorade sonen Suite: V. Steklat: Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e71eccfda8ae663344e04358f14b40ab9cdf5aea30660263805cb6c64171fb9. 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/SEBAA1400812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b08beba2cb8d52656aa691588e8c1415169a9f99d64937f75ca448aac3ff9b9. 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/SEBAA1400813.
Den förlorade sonen Suite: VII. Final: Polska
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2fb5c0dba518d0179e2c6a3e41c1593a25abf2d2e7203b78fb95bb73df5b16. 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/SEBAA1400814.
Intervju med Hugo Alfven (Interview with Alfven, 8 October 1954)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e159defaee9ce3215e8ea50fa59eb73060b78a2331055a8a888288a582d857. 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/SEBAA1400815.
Alfven: Symphony No. 3 / Legend of the Skerries
Vårfavoriter - Sånger om våren och kärleken
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef731d35a25dd244afda6144a4ba7dd37c6377e3aea235d619f6d37516780ff. 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/HKI190840404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc721fc27f8a6384d0afb322a0eceaa78a750c24247977c4a9025e38391b0d6. 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/SEBAA2102013.