﻿ Anne Harvey (1916–1967) was an American painter who spent most of her life in Paris. Highly regarded there for her unique, original, and varying styles, which were not dictated by any major influenc
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 0x88bfdfc2b6b32149234b6d8d21e768b19e24117c8cc750cc3216ca7c830546ef. Chain 2 (Bitcoin): anchored in block 953996 (2026-06-16T20:04:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3041f6ae-2811-465d-abce-15ea51e31072.json and https://artists.proofprofile.net/proofs/artist/3041f6ae-2811-465d-abce-15ea51e31072.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Mass No. 10 in C Major, Hob.XXII:9, "Missa in tempore belli", "Paukenmesse", "Kriegsmesse": Kyrie
Haydn: Mass in Time of War - Nelson Mass
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 0xc2789007110dbed2ce29f0bf458cda94d900df0d6a56f851bc63e2d9c769c0d0. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGRH1600043 — a six-check JSON result.
Mass No. 10 in C Major, Hob.XXII:9, "Missa in tempore belli", "Paukenmesse", "Kriegsmesse": Gloria: Gloria in excelsis Deo —
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea40bb1e11331ecfbbcc699f0b4443c06f4bf493030537f4097e0d0211436d1f. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGRH1600044 — a six-check JSON result.
Mass No. 10 in C Major, Hob.XXII:9, "Missa in tempore belli", "Paukenmesse", "Kriegsmesse": Gloria: Qui tollis peccata mundi —
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d54e8928c824342bb3cb14ed399ebdb5755a3cce2e8790cc7cbdf77574aec8. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGRH1600045 — a six-check JSON result.
Mass No. 10 in C Major, Hob.XXII:9, "Missa in tempore belli", "Paukenmesse", "Kriegsmesse": Gloria: Quoniam tu solus sanctus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511d95e45b02299d5bf0fec4ba905b9b6824d07aeeb55f7bb0e164163407d845. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGRH1600046 — a six-check JSON result.
Mass No. 10 in C Major, Hob.XXII:9, "Missa in tempore belli", "Paukenmesse", "Kriegsmesse": Credo: Credo in unum Deum —
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f91374282cb9945f87d7b209c3648a672c01585ab45b32282733a613933d234. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGRH1600047 — a six-check JSON result.
Mass No. 10 in C Major, Hob.XXII:9, "Missa in tempore belli", "Paukenmesse", "Kriegsmesse": Credo: Et incarnatus est —
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18cad645fee88a2a72f0c525d0984de89af028fa3e029e03638f6a61ab4831ae. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGRH1600048 — a six-check JSON result.
Mass No. 10 in C Major, Hob.XXII:9, "Missa in tempore belli", "Paukenmesse", "Kriegsmesse": Credo: Et resurrexit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b7e494d3b730f2333ce8387f3ce0dd3c3ea4c1b7d3b32568bfcd149e33ba15. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGRH1600049 — a six-check JSON result.
Mass No. 10 in C Major, Hob.XXII:9, "Missa in tempore belli", "Paukenmesse", "Kriegsmesse": Sanctus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1636cc8676c72a3c465aff000c0801f001e26d066a28c4040060099b095e77b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGRH1600050 — a six-check JSON result.
Mass No. 10 in C Major, Hob.XXII:9, "Missa in tempore belli", "Paukenmesse", "Kriegsmesse": Benedictus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb9f51aa8925b2632f2315449ab6574cd3b9aade56e6f518ee47f9cfc0737ea. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGRH1600051 — a six-check JSON result.
Mass No. 10 in C Major, Hob.XXII:9, "Missa in tempore belli", "Paukenmesse", "Kriegsmesse": Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9c2702c61231b2e60abf89fb9529ea02514f19e5a84adf6eb8c5e626502f82. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGRH1600052 — a six-check JSON result.
Mass No. 11 in D Minor, Hob.XXII:11 "Nelsonmesse": Kyrie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cfda65c9f0982dca1727fd8a81ef8f775e675dc142177e8bb34c6eb315cff0e. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGRH1600053 — a six-check JSON result.
Mass No. 11 in D Minor, Hob.XXII:11 "Nelsonmesse": Gloria: Gloria in excelsis Deo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719b5e41067594658a6f196e2ef8f117d13a9d3c992a48fa6796545e62221bbc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGRH1600054 — a six-check JSON result.
Mass No. 11 in D Minor, Hob.XXII:11 "Nelsonmesse": Gloria: Qui tollis peccata mundi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaceb62893aeb0a1b131962dbb3f29c53a6c37bfa2ea8c99d1333da292c11f7c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGRH1600055 — a six-check JSON result.
Mass No. 11 in D Minor, Hob.XXII:11 "Nelsonmesse": Gloria: Quoniam tu solus sanctus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ab049a0a1a800299f475e5ce3012be1f36b074c42a33730353cdf4b8126cdd. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGRH1600056 — a six-check JSON result.
Mass No. 11 in D Minor, Hob.XXII:11 "Nelsonmesse": Credo: Credo in unum Deum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9c84d9e2c1be22d39d704c7fccfabf3d730207042d5fa3f431aef1c732b13c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGRH1600057 — a six-check JSON result.
Mass No. 11 in D Minor, Hob.XXII:11 "Nelsonmesse": Credo: Et incarnatus est
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2bbd8d578c46635e8c596e2fba9db054ac064b1913921ef070bc4202bee4e6c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGRH1600058 — a six-check JSON result.
Mass No. 11 in D Minor, Hob.XXII:11 "Nelsonmesse": Credo: Et resurrexit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357d21e914e175532cc2d9bfc17bb2b720366677388981c2605b2c6bf980e240. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGRH1600059 — a six-check JSON result.
Mass No. 11 in D Minor, Hob.XXII:11 "Nelsonmesse": Sanctus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26cbfed08884309f74232c639ef45f7bc854c5779263ab956d781b0fbab70b8f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGRH1600060 — a six-check JSON result.
Mass No. 11 in D Minor, Hob.XXII:11 "Nelsonmesse": Benedictus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2e01f31519969f8500b2ecbc25386dd2242595d07c97496c6e33b817faa865. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGRH1600061 — a six-check JSON result.
Mass No. 11 in D Minor, Hob.XXII:11 "Nelsonmesse": Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6622a79bacdde155ba051c41c0ec49ea960287c73dd36d176f80878dad9a39. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGRH1600062 — a six-check JSON result.