Anthony Camden (26 April 1938 – 7 March 2006) was the principal oboe and chairman of the board at the London Symphony Orchestra. He was also a founding member of the ensemble London Virtuosi and went
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 0xfcd178b2096c1548a08adf49fb19ee887f62260dabd1eb9d7e1ea9af9b74dd73. 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/a03dfadd-a2e7-404b-978c-874634a9ae34.json and https://artists.proofprofile.net/proofs/artist/a03dfadd-a2e7-404b-978c-874634a9ae34.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sinfonia for 2 Oboes in G Major (Arr. A. Camden): I. Allegro
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 0x8a0eb2053ef4fb264d56a7bdbdf4a957d49b96d9d03bf65819fd06eb3d289951. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/HKI199202801.
Sinfonia for 2 Oboes in G Major (Arr. A. Camden): II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96e4bf8c045190d88a01bb0ddcb84fd7ae36539b8443d7d72217817acd91f7a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HKI199202802.
Sinfonia for 2 Oboes in G Major (Arr. A. Camden): III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0d311424302892aefbc9915351c76bbe8c89f9e40abdd3747d4ca949213f07. 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/HKI199202803.
Concerto for 2 Oboes in C Major, Op. 7 No. 2: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7be02901061ac2a5ec5ead5b8e0c1f610fd81e2e6178d66aa2b66a2ad4dcc97. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/HKI199202804.
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
Concerto for 2 Oboes in C Major, Op. 7 No. 2: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e34852641000bd1ad3d4fb1b37032a9a43584c8335ff368213145c8b2e91b0. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/HKI199202806.
Oboe Concerto in B-Flat Major, Op. 7 No. 3: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99735712fba4f20454edb430710402a3824336d32ba47cb32dfb24944b05b57a. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/HKI199202808.
Oboe Concerto in B-Flat Major, Op. 7 No. 3: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63ebd154d607b30525f0080c021da3b827e8cc21dc457c5151dd116b76cede0. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/HKI199202809.
Concerto for 2 Oboes in D Major, Op. 7 No. 8: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d682fa348fe80c498c01db8bb494d7be3a914fa774d98e5e42a224c8e821d7. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/HKI199202810.
Oboe Concerto in F Major, Op. 7 No. 9: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5247cfe9f6d7ba51f724d4fbebf415b573e6189ce523ea26ae4a2e2f160f7aaf. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/HKI199202813.
Concerto for Orchestra in D Major, Op. 7 No. 1: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3343c872847d7d4e5473addca37701b67709e3fe3c7fab415a1acac813085585. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/HKI199202816.
HANDEL: Oboe Concertos Nos. 1- 3 / Suite in G Minor
Oboe Concerto in F Major, Op. 7, No. 9: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1a407a8d024a7bf4003c136ca5259ed885b13618cf8680e0d1870abedc3645. 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/HKI199202814.
Konzert für Oboe Nr. 3 g-Moll, HWV 287: Oboe Concerto No. 3 in G Minor, HWV 287: III. Sarabande
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc658ee2fb9882422de6ef552e81d9d522accb47b4d0ae32119c64b749448bff. 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/HKI199991007.