Rosemary Joshua (born 16 October 1964) is a Welsh soprano, particularly known for her performances in Handel's operas.Dominic McHugh, Rosemary Joshua on ENO's Partenope, specialising in Handel and her
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 0x797eedac38dca61ff8dbf34ab3d4f3e794aa4c80884621d0aba13e2118d13dfc. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27c21947-5332-43d0-9bae-acc637cf7395.json and https://artists.proofprofile.net/proofs/artist/27c21947-5332-43d0-9bae-acc637cf7395.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Israel in Egypt, HWV 54: Part I: Symphony
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 0xe0ad3fc07e0a1989473f59a41758185406b5dac6f7dca504e5d49ae7f72a7778. 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/DELW71050101.
Israel in Egypt, HWV 54: Part I: Quartet: When the ear heard him (Soprano 1, Alto 2, Tenor, Bass 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bfa91ceec325e758db03b4aa143b0d2a6918eb3ebb047f66a205c5dc098f7c8. 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/DELW71050105.
Israel in Egypt, HWV 54: Part II: He spake the word (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd27ad2eaa63a2f0b7d2afffdc7a390eb527ef08f13237383e8e7ff3f8d9d5d8. 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/DELW71050118.
Israel in Egypt, HWV 54: Part II: He sent a thick darkness over all the land (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc31bfb4a5c319a675260bdcb4e1ae1f9d3b37bca4eda7b66ba78ea445ea049a6. 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/DELW71050120.
Israel in Egypt, HWV 54: Part III, "Moses Song": Moses and the children of Israel sung this song (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6276a2e2b50660b1892d53b8b1339bec7f96903333e896414ebabc0702dd304. 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/DELW71050125.
Israel in Egypt, HWV 54: Part I: How is the mighty fall'n! (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1256c293c309bfaa9d36f7fcebcce25babddc10c52a4bf3eed5238bd00cf7732. 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/DELW71050106.
Israel in Egypt, HWV 54: Part II: He gave them hailstones for rain (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24bc3c4b3e7202854902aa5b2bf7b3b9c54cf11958dfee4d4f381d1dab84b22. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/DELW71050119.
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
Israel in Egypt, HWV 54: Part I: The sons of Israel do mourn (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515ef524f8d420248aaa7033686c5520d894bcda0ce5a8cde46b8d53cc6f7e25. 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/DELW71050102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb8bc8512d73e1956f48b437af90e21abd997054a7f65442ce053bc46f804e9. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/DELW71050103.
Israel in Egypt, HWV 54: Part I: He put on righteous (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dbfedb56fd971118a54183a7c2231c2a2c22786eea3cec957417dba7e894981. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DELW71050104.
Israel in Egypt, HWV 54: Part II: And the children of Israel sighed (Alto, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe0063a71471605ab8d47e15389e2c8980c331843f28105727e89828f8ba55c. 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/DELW71050114.
Israel in Egypt, HWV 54: Part II: They loathed to drink of the river (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248aa5acc3e2ebbf56281559f94148def74f91e59d7e98ff33a96a2e16d60479. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DELW71050116.
Israel in Egypt, HWV 54: Part II: Aria: Their land brought forth frogs (Alto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5a1a0f7874280f0b6cbaa0cb9f335c1d0dc86228ba2e164059fd0578638079. 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/DELW71050117.
Israel in Egypt, HWV 54: Part II: He smote all the first-born of Egypt (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ed18ef92523ee49d9f37a66f7390f12606470667f8e38da3c04869385e901c. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DELW71050121.
Israel in Egypt, HWV 54: Part II: He rebuked the Red Sea (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a884461b9ff1b1ba8d532eb14bd887508336c0eb2d04be2e37884cdc4f86de. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/DELW71050123.
Israel in Egypt, HWV 54: Part III, "Moses Song": Sing ye to the Lord (Soprano, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060cb556a65d99568abd83b888eb9a4fad9c3146f7a180c30c626b3e77dcb51f. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/DELW71050137.
Israel in Egypt, HWV 54: Part I: He deliver'd the poor that cried (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f95219847b7d7343b6683ebd2db9a3c17005a40e5538ee50b846a3512bc40d. 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/DELW71050107.