Robert Lloyd may refer to: Robert Lloyd (of Rhiwgoch) (), member of the English Parliament for Merioneth 1601 Robert Lloyd (courtier) (fl. 1600–1625), courtier and member of parliament for Ludlow,
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 0x7a0b49f2ad7d4d4d329cad61d41c762b99856599110dabd1e6184c4c285c1d1e. 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/eea3a87e-6b1b-496c-99c3-6c77f2c7f216.json and https://artists.proofprofile.net/proofs/artist/eea3a87e-6b1b-496c-99c3-6c77f2c7f216.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mozart: Die Zauberflöte, K. 620 (Highlights)
Requiem in D Minor, K. 626: I. Introitus. Requiem aeternam
Academy of St Martin in the Fields Chorus
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 0x66f2bc5b1ea22ac8c04e17b45458f35505bd2a431f6f4c4d1fd5c23d1898c9b0. 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/NLA508902601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925c20dcedd05797120babe07f2ce31e46d71538a5bb3b2987d8dafbdf3022b9. 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/NLA508902602.
Requiem in D Minor, K. 626: IIIa. Sequentia. Dies irae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4159b7d31aa5a00755e3494aafe59c5ff8489e98826fca1876f80117b1258ee6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLA508902603.
Requiem in D Minor, K. 626: IIIb. Sequentia. Tuba mirum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd4b90c37c5baf86e38e39eed986704a8792c80ef3b01253d28cf8a0ca6e19a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLA508902604.
Requiem in D Minor, K. 626: IIIc. Sequentia. Rex tremendae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65db8c865b3c6cda940162946e7f2de980991af7507669e9adfc0d86537ca773. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLA508902605.
Requiem in D Minor, K. 626: IIId. Sequentia. Recordare
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb544c2c9e1501a35b7959f034e6528873d0898d5463d1652d4ed2fbbe9487f8d. 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/NLA508902606.
Requiem in D Minor, K. 626: IIIe. Sequentia. Confutatis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d54569a670aaf4a98f3f338a0e1cc1b5c6bbb243da2a71805b1a0c40f873cc6. 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/NLA508902607.
Requiem in D Minor, K. 626: IIIf. Sequentia. Lacrimosa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d912f3954ea53b543052a6f259f8ec10641f6a6f71ce8f850e75fff8a1b3b5d. 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/NLA508902608.
Requiem in D Minor, K. 626: IVa. Offertorium. Domine Jesu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359ea56180fdbe5642701028b9149baf1dfc741706dc1e8fca8d3a3bde721a43. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLA508902609.
Requiem in D Minor, K. 626: IVb. Offertorium. Hostias
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755c48cc9bebf6b961994e890d883c529f281ccb151fcc275712f352a160fe36. 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/NLA508902610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4689f199f45e2e86abd12b59dbc80d960b6746fb9a9da1824227821730bb212. 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/NLA508902611.
Requiem in D Minor, K. 626: VI. Benedictus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5219618bb96ecda2007a97fad12af56419bbc48e844f002150c6aa9beb9504b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLA508902612.
Requiem in D Minor, K. 626: VII. Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d097f3aed1af41e454634e2d894204821601289ad26faa2e48d56cabba160ac. 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/NLA508902613.
Requiem in D Minor, K. 626: VIII. Communio: Lux aeterna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36a6dacd155bb340e2f167e52b2677c9b93e7277872b685e91df540beaa9b46. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLA508902614.
Mozart: Acis and Galatea, K. 566 (Sung in German)
Mozart: Great Mass in C minor; Ave Verum Corpus
Mass in C minor, K.427 "Grosse Messe": 1. Kyrie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05586ccfdebecc595bbd85a2bbfc642bf0b0d6cb244c0a2efaf28bbec8d54124. 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/NLA509300101.
Mass in C minor, K.427 "Grosse Messe": 2. Gloria: Gloria in excelsis Deo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca7f4fb9eb74593685df4ef8d310bab124f5848e62549b91e71c56ca4433b18. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:40:51Z), 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/NLA509300102.
Mass in C minor, K.427 "Grosse Messe": 4. Gloria: Gratias
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d456118f99c14ee54830bf636641e10ee27e5b49c89e7973b9bbd153a8f6761. 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/NLA509300104.
Mass in C minor, K.427 "Grosse Messe": 9. Credo: Credo in unum Deum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf91466dea271a4057e56136c0ae754dfb2e38e945f3f84e099cefcdc286859d. 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/NLA509300109.
Mass in C minor, K.427 "Grosse Messe": 10. Credo: Et incarnatus est
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bdffd2ef91bc4b1b66a25ac56f31c594e15e8cd6687c0212de8d9f356706abd. 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/NLA509300110.
Mass in C minor, K.427 "Grosse Messe": 12. Benedictus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1303a7ff8f950e6dc8124927bd387f31ef58834580681bef1054351af5da4d. 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/NLA509300112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487ea79f17178fb1f393e07e1588785bdf2e5abb9e807f0521a46d0635617dd6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLA509300113.
Mozart: Le nozze di Figaro, K.492 - Original version, Vienna 1786 - Act 4: "Contessa, perdono ... Ah tutti contenti"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x897c57868fc0a8bcbb7fbec790d987b045ada12c31accabcfe4706834f472c14. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/NLA508400179.
La Fanciulla del West / Act 1: Un poker? Nick, gettoni!
Orchestra of the Royal Opera House, Covent Garden
Chorus of the Royal Opera House, Covent Garden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f65dd013676d3848e630201f18ef36edf8d1735c754b73d0c5154c6ac016ba. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-21T16:34:46Z), 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/DEF057730523.
La Fanciulla del West / Act 1: Mister Johnson, un valzer?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39cd5d12261ecc8d52e167bd8f3bfc0f8e5a1acf17013fe68047f9fea96c877. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/DEF057730531.
La Fanciulla del West / Act 3: Ah! Ah! Ah!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4b1e217b188e6c4b601d8ac7e4cc959b18cea173864b81349f4db752525ccc. 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/DEF057730546.
La Fanciulla del West / Act 1: Hello, Minnie!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619e6c779ab369354ad7e5bdfb1eec05fe6744a8366caa72c6e71ce94c17fa3b. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/DEF057730525.
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
La Fanciulla del West / Act 1: La posta! La posta!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb180869a750de5825acbba775fdba68a59238b1af9428135718c21a63c93473. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/DEF057730526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37848604a8a70b339321d5ed7c3eda71e2a6c691defb34d07c78a1f552750115. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/DEF057730539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1bff91fcc4d4cde40818b091c55c16b46d01f048e3018b1238330238e2a1eb. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/GBF079642908.