The Swedish Chamber Orchestra () is a Swedish orchestra based in Örebro. Established under its current name in 1995, its primary concert venue is the Örebro Concert Hall. The historical precursor ens
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 0x2af89be2dd51a4ddf5c0e084e2ab4d1642d2f6f3d1b2705d247948961a3c6b7b. 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/0fe1e166-5d10-4780-97a5-6bf08e0c5eb1.json and https://artists.proofprofile.net/proofs/artist/0fe1e166-5d10-4780-97a5-6bf08e0c5eb1.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Brandenburg Concerto No. 2 in F Major, Bwv 1047: I. —
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 0x9628db3f2a53e6ba13393cf8a6bad7bf6ced9129cd234b120ba9b7dc52dfe9eb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEV2199060 — a six-check JSON result.
Horn Concerto in E-Flat Major: I. Con discretione
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24dc917637739cf57b23726fc8bfcbaa6ef4fe8871bde52e8b2369cca0bec957. 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/SEAEY1715010 — a six-check JSON result.
Horn Concerto in E-Flat Major: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff50e32d19fb4bbbbc07769778bea5d95adb0c6450623b7d7d891b4ccab22856. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEY1715020 — a six-check JSON result.
Horn Concerto in E-Flat Major: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603b9eecf2a5c5a03b3a5e23123f6a7bebce040c9741ed1bce8d53d4ebbcabb6. 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/SEAEY1715030 — a six-check JSON result.
Horn Concerto in D Major, TWV 51:D8: I. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78782ac261bfccbe0f0612cf9153f85e62ff8683b5e4091760fc1818f3797aae. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/SEAEY1715040 — a six-check JSON result.
Horn Concerto in D Major, TWV 51:D8: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3ebeb44751bf6d7c679fb55914783612d42ee261d03ad31a1c7055b7516538. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEY1715050 — a six-check JSON result.
Horn Concerto in D Major, TWV 51:D8: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78323f2e2d6112eafd94c5aa4f45dec9e4fe911c182b66cd14f2600b505a763. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEY1715060 — a six-check JSON result.
Horn Concerto in E-Flat Major: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef509f7769bb20861053b8905a4b86b5eeae5057b85f8bae0bbd3bad3f15da4e. 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/SEAEY1715070 — a six-check JSON result.
Horn Concerto in E-Flat Major: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9facfaf348a79f5bf1a2e04884a38651ae66b7e55c29159bab07f56d97d30ade. 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/SEAEY1715080 — a six-check JSON result.
Horn Concerto in E-Flat Major: III. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd521aa33a8f67f926a3d293fd5821df0b62c4cd8ade30fe83c468a41f9e1841b. 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/SEAEY1715090 — a six-check JSON result.
Sinfonia da camera in D Major, LMW VII:D5: I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d98ecf4e99d7225bfee6b149bd0f3f1a54c3ae36f546fe8146dad909cf4acd6. 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/SEAEY1715100 — a six-check JSON result.
Sinfonia da camera in D Major, LMW VII:D5: II. Menuet - Trio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06fbc15fe1636cf05a63a3e0dc60b3329ea429f9d16c2de085b6b27122baedf9. 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/SEAEY1715110 — a six-check JSON result.
Sinfonia da camera in D Major, LMW VII:D5: III. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d80051dd567edec3afde93df8a09c3252da117348f4fe312537af27bd82c94. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/SEAEY1715120 — a six-check JSON result.
Sinfonia da camera in D Major, LMW VII:D5: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd47db9f42e4657c235d7ba997475e596243d058429d5c694a2816465136ad8c. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/SEAEY1715130 — a six-check JSON result.
Horn Concerto No. 1 in D Major, Hob. VIId:3: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c166ebc9e1316d56c8993a5d68c1cbef6488595bd0da244aa15ca353103926. 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/SEAEY1715140 — a six-check JSON result.
Horn Concerto No. 1 in D Major, Hob. VIId:3: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec78e02f839997cc0fd201007cbd16e4d9e0ba69a90a2a2543caef7bc0f26d9c. 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/SEAEY1715150 — a six-check JSON result.
Horn Concerto No. 1 in D Major, Hob. VIId:3: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3648db77876b54cefb8590c2fe30dd94ac5e702b813e4176a378d0171d5de04f. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/SEAEY1715160 — a six-check JSON result.
Wagner: Siegfried-Idyll, Wesendonck-Lieder & Symphony in C
Serenade No. 13 in G Major, K. 525, "Eine kleine Nachtmusik": I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4f163b16cfdc03521ae4a077251be5b2b766f6d0fd85e2bd4955b15ec97b78. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/HKI190473601 — a six-check JSON result.
Concerto for Flute & Harp in C Major, K. 299: II. Andantino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5992b999385fefeb30bae7b80262c66b4045beacab2db15051fb3ddf9920e61. 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/HKI190325105 — a six-check JSON result.
Serenade No. 6 in D Major, K. 239, "Serenata Notturna": I. Marcia: Maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f58ca7e41b5c660474072ad9fee4de88e25225aa12633562fbf2cbfc9072aa. 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/USB8U1601075 — a six-check JSON result.