thumb|Stavanger Concert Hall The Stavanger Symphony Orchestra (, SSO) is a symphony orchestra based in Stavanger, Norway. The SSO principal venue is the Stavanger Concert Hall (Stavanger konserthus),
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 0x86a6066ed9f986eef8ae4989001b5cc74088b36b296e41cc95fce02946d508fb. 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/0f74e000-4a26-489a-8bd8-b91817a38252.json and https://artists.proofprofile.net/proofs/artist/0f74e000-4a26-489a-8bd8-b91817a38252.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Norwegian Concertos: Hovland / Madsen / Böttcher
Symphony No. 3 in E-Flat Major, Op. 97: II. Scherzo: Sehr mäßig
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Symphony No. 3 in E-Flat Major, Op. 97: V. Lebhaft
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Symphony No. 4 in D Minor, Op. 120: I. Ziemlich langsam - Lebhaft
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Symphony No. 4 in D Minor, Op. 120: II. Romanze: Ziemlich langsam
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Symphony No. 4 in D Minor, Op. 120: III. Scherzo: Lebhaft
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Symphony No. 4 in D Minor, Op. 120: IV. Langsam - Lebhaft
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Symphony No. 3 in E-Flat Major, Op. 97: I. Lebhaft
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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
Symphony No. 3 in E-Flat Major, Op. 97: III. Nicht schnell
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Symphony No. 3 in E-Flat Major, Op. 97: IV. Feierlich
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Rolf Wallin: Five Seasons, Stride & Other Orchestral Works
Bruckner: Symphony No. 7 (Nowak edition)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1caa92c2ab76013be9418146c0615ea07b0a2ba65c9423801533b8aaf05f11f3. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NOHG21900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f98531b1e9ff08a5aff2e43cfe3439fc348657c4d4fb83c036bf0bae33bd206. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOHG21900005.
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Beethoven: Violin Concerto in D Major, Op. 61 / Berg: Violin Concerto
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa676cc2346fe8f43fda489086e6107c8d0c9238e975192196135635e2c0b91ad. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/NOCJB1222030.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3281732baaf57fa943e81748c3a03af48ac73c0e0038f2eda8eef2cd273cb4f2. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/NOCJB1222050.
Nørgård: Violin Concertos Nos 1 & 2 - Spaces of Time
Lotusland - Symphonic Works by Arvid Kleven
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)
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Valen, F.: Orchestral Music, Vol. 2 - Symphonies Nos. 2 and 3 / Epithalamion
Valen, F.: Orchestral Music, Vol. 1 - Symphony No. 1 / Violin Concerto
Pulkkis: Enchanted Garden / Flute Concerto / Symphonic Dali
Groven: Symphony No. 1, "Toward the Mountains" / Norwegian Symphonic Dances Nos. 1 and 2
Saeverud: Overtura Appassionata / Divertimento No. 1 / Siljuslatten
Tveitt: Piano Concerto No. 5 / Variations On A Folk-Song From Hardanger
Saeverud: Symphony No.5 / Oboe Concerto / Entrata Regale / Sonata Giubilata
Tveitt: 100 Folk-Tunes From Hardanger, Suite No. 4: Wedding Suite / Suite No. 5: Troll Tunes
Norwegian Rhapsody - Orchestral Favourites
Kjempeviseslatten (the Ballade of Revolt), Op. 22a, No. 5
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Ut mot havet (Out to Sea): Ut mot havet [Towards the Sea]
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Peer Gynt Suite No. 1, Op. 46: I. Morgenstemning (Morning Mood)
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Bojarernes Indtogsmarsch (Entry March of the Boyars): Bojarenes Indtogsmarsj [Entry of the Boyars]
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2 Elegiac Melodies, Op. 34: No. 2, Last Spring
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100 Folk-tunes from Hardanger, Op. 151, Suite No. 1: I. Velkomne med aera (Welcome with Honour)
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Tveitt: Hardanger Fiddle Concertos Nos. 1 and 2 / Nykken
Tveitt: Prillar, Op. 8 / Sun God Symphony, Op. 81
Saeverud: Cell Concerto / Symphony No. 8