The Danish Chamber Orchestra () is a chamber orchestra in Denmark. It was the Danish National Chamber Orchestra from 1939 to 2014, when it was under the Danish Broadcasting Corporation (DR). Since 201
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 0xf6f14b37f0014d33ac3a89f6b94282c864f96d415556e73a524631af6f68beeb. 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/1121be9d-46f4-4e6c-8e8d-63ca7b045f6e.json and https://artists.proofprofile.net/proofs/artist/1121be9d-46f4-4e6c-8e8d-63ca7b045f6e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Symphony No. 102 in B-Flat Major, Hob. I:102: I. Largo - Vivace
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 0x44e7024e0a726f283cbd0bf2b4d3f08a10efb2b3642225e8e19444fb96ed09fb. 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/HKI192410501.
Symphony No. 102 in B-Flat Major, Hob. I:102: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44fd78a5fb46999b6c25d53959be5961a759215b7d0e94fd61c1b868c0f1e300. 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/HKI192410502.
Symphony No. 104 in D Major, Hob. I:104 "Salomon": I. Adagio - Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679512826ece58b4f225f7db887680db62a2ddf76570ff59808f1426d838b573. 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/HKI192410509.
Symphony No. 104 in D Major, Hob. I:104 "Salomon": IV. Finale. Spiritoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08489729785d998cb5f45256541386b65f487a1020b7f93d212ef38bdf0735a3. 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/HKI192410512.
Symphony No. 102 in B-Flat Major, Hob. I:102: III. Menuetto. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13e91ac8d253bbf415630381a78a022842c00a46abed35ce51f29b3dd08d695. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/HKI192410503.
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. 102 in B-Flat Major, Hob. I:102: IV. Finale. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4085a6670c4fbef2e01848d4c7af0f0eaa1b0f31af78c6297e2e546d952aebb9. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/HKI192410504.
Symphony No. 103 in E-Flat Major, Hob. I:103 "Drumroll": I. Adagio - Allegro con spirito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c4ba71825cbd4b27246bf2eb942960426da1e29d41dcd6be1652441135882a. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/HKI192410505.
Symphony No. 103 in E-Flat Major, Hob. I:103 "Drumroll": II. Andante più tosto allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51334307bbde0da7d8f13ce876d9635c82491f602aa9546c9cea0bf6fce3991e. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI192410506.
Symphony No. 103 in E-Flat Major, Hob. I:103 "Drumroll": III. Minuet - Trio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbefa5a3ab6ad97c5e43d205add84f77912924a50295b5263eaa2f2ccdf8a1d0. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/HKI192410507.
Symphony No. 103 in E-Flat Major, Hob. I:103 "Drumroll": IV. Finale. Allegro con spirito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c80c22a972eccde63231086cf79cfc201b0d682899ffc68a2289165073ea05f. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/HKI192410508.
Symphony No. 104 in D Major, Hob. I:104 "Salomon": II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf195ba5dfa67ef897277810079344ce689e92247c3570fdc6a02dc2598b53b6d. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/HKI192410510.
Symphony No. 104 in D Major, Hob. I:104 "Salomon": III. Menuetto. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3990029e13f1e24fc5f01158190994c3aa5fe121dc36bc2b62f59b083cef3824. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/HKI192410511.
Symphony No. 99 in E-Flat Major, Hob. I:99: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8671bb1a6725871c14a719ae819f1e0dfc7e0a8242341c896c9663b8b904d913. 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/HKI192410402.
Symphony No. 99 in E-Flat Major, Hob. I:99: IV. Finale. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5195293782d0d5c769f4bdd2b1abdd08ce1b194a508c759575c94b97823c0289. 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/HKI192410404.
Symphony No. 100 in G Major, Hob. I:100 "Military": I. Adagio - Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e71e7b113476f138bad7ab7ad4d09bbd7404059d64312302f83f36b100e843. 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/HKI192410405.
Symphony No. 100 in G Major, Hob. I:100 "Military": II. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0de94adc3d614152467e9893d92a26b1efed5d96a42dd0cd5774dd90d34b08b. 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/HKI192410406.
Symphony No. 100 in G Major, Hob. I:100 "Military": III. Menuet. Moderato - Trio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e1b67a0dbc9da30be27ba3a71f147d791ebbad2fff7afd24473ba43cabbfce. 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/HKI192410407.
Symphony No. 101 in D Major, Hob. I:101 "The Clock": II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950c181e889554eb0b731d33e67b13feff908dac2dca12a769110791204d9322. 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/HKI192410410.
Symphony No. 99 in E-Flat Major, Hob. I:99: I. Adagio - Vivace assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1198e90a38dc8e56ab2c9ee8a837776f6a7aa96aa625e00e08f55e9116e7b88. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/HKI192410401.
Symphony No. 100 in G Major, Hob. I:100 "Military": IV. Finale. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4739b570e150494eb6dff5ad1ff637b97ed0d10d9f31fd823890462ae08c7878. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/HKI192410408.