Kate Royal (born April 1979) is an English lyric soprano. Kate Laura Royal was born in London and attended Talbot Heath School in Bournemouth, Dorset. She later studied at the Guildhall School of Mus
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 0x850cf245865a2e9e6f9b8aa56abb696820d0dedefec042c0c664a5a8ac5dc410. 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/2bb4b815-7804-4808-9654-b44304fee74d.json and https://artists.proofprofile.net/proofs/artist/2bb4b815-7804-4808-9654-b44304fee74d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Stella Natalis: IV. Only Heavenly Music (In Memoriam Christine Brown)
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 0xc7a7b858d649b22e8d4a59c8fe1825e5b978dbfbd33028fc62c5a72911de6e77. 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/GBAYC0902275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218412380fd39513864decefdddeb95d3b46d015a161c2bff0b222fc89249fbd. 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/GBAYC0902280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c70a90751e1497701f234575fe3d1728f13e6788364eafc8f54b44704b17304. 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/GBAYC0902273.
Mahler: Symphony No. 2 in C Minor "Resurrection": V. (e) Langsam. Misterioso. "Aufersteh'n, ja aufersteh'n wirst du" - V. (f) Etwas bewegter. "O glaube, mein Herz !" - V. (g) Mit Aufschwung a
The Sound of Simon Rattle and the Berliner Philharmoniker
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ceaf27bcc484ae152491dcfb6aa3b0c6078d74c6ec80cb244ca64c12ce1a5af. 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/GBAYC1504237.
Mahler: Symphony No. 2 in C Minor "Resurrection": V. (g) Mit Aufschwung aber nicht eilen. "O Schmerz!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105221f1bbdbc342b62b05981d83279243628d6a9f78383ff38b14652d7819b6. 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/GBAYC1002441.
Stabat Mater, FP 148: VI. Vidit suum - Live
Poulenc: Piano Concerto, Organ Concerto & Stabat Mater (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77082520001d167fd6239ce01bdf4873db1e26189c30acc45d42b6b1fab06a7d. 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/GBHZU1810809.
Stabat Mater, FP 148: X. Fac ut portem - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbf9d9fe14bdda5ebd5f4ce8bf4237ccfade491d30797bbaac3b24e13abc1dc. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/GBHZU1810813.
Stabat Mater, FP 148: XII. Quando corpus - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ac52b1d2b19d70b09f7737916fad3308617082eabaf304b2df0efde3404cdd. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GBHZU1810815.
Purcell: Come Ye Sons of Art, Z. 323 "Ode for Queen Mary's Birthday": No. 7, Aria. "Bid the Virtues"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3941c0b4076739e270fe3fbe67c9cee6112362f8a469d7e811854028c1ae9cfd. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/GBAYC0502074.
Purcell: Come Ye Sons of Art, Z. 323 "Ode for Queen Mary's Birthday": No. 9a, Duet. "See Nature Rejoicing"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4848adf6c6ca9950c433706afab889b42d782c07c2801ab2278c37f6ad31802. 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/GBAYC0502076.
Scarborough Fair - Songs From The British Isles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4fb24ff3a226eedeb5f98d81d64a80d6b4ccc43f1b7a4bb29f61fa8c6b6431. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/DEN960701660.
Handel: Acis and Galatea, HWV 49, Act 1: Duett. "Happy we!" (Acis, Galatea)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1792dbf21a51d4e8067513f313c182790e31f8516d45e5e824b80e1e3c7723. 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/GBAYC0701750.
Handel: L'Allegro, il Penseroso ed il Moderato, HWV 55, Pt. 3: Duet. "As steals the morn upon the night"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24173a034a80ee6047138d6ba5fd4bf991180db0bb7c25945fbacd071732fb6. 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/GBAYC0701757.