Malcolm Archer (born 1952) is an English composer, conductor and organist. He was formerly Organist and Director of Music at Bristol Cathedral, at Wells Cathedral and at St Paul's Cathedral and Direc
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 0xbe845dcb1d9a8ac2f8f4f583cceb0660c0af4cdd1d31a1efaec52404b3593cbc. 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/19cbf4e8-ed37-4b93-a443-1e1f20952900.json and https://artists.proofprofile.net/proofs/artist/19cbf4e8-ed37-4b93-a443-1e1f20952900.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Canticles from St Paul's: Walmisley, Stanford, Wood, Tippett etc.
Magnificat & Nunc dimittis in D Minor: I. Magnificat
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 0xb57d62308fed431c67223c389c292250b0789336f6eaa7fe23bf8159ec316781. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBAJY1405802.
Magnificat & Nunc dimittis in D Minor: II. Nunc dimittis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97d7c88c18f6a96be64ced184885bb8e4f46370a29608faed109cf09caa27dc. 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/GBAJY1405803.
Magnificat & Nunc dimittis in F Minor: I. Magnificat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ec719171ff0cbfb82df3c1eaefee5327f38151f4e264b2ad58814107c4327d. 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/GBAJY1405806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe556dc53fa9bf2fdc033da861d0b4792575aa7ab5abcad1edae9656620cb0fef. 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/GBC7N1045801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2dc2cb592fd558611674c87a09276cdc4c5c5317562fb2f1e4b5d19c6ec499. 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/GBC7N1045802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8eb70097dd6709679ee69a449b059d0ccb003590f60be43fa3d8426df0f3b34. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/GBC7N1045803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3aec6b96d3b389259ff8ef9841726bc90a2f47a1d07ff21861b090a9dc9208. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBC7N1045804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fef84c193820fc3af5873d818a83c703c883f3a69b48a375bbed2b4357fa3a6. 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/GBC7N1045805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866181cf5ff19c3919c729f04e722faabfd5be6b3ccc7b88428e2dc0121fa641. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/GBC7N1045806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3915e4b78bca44a3e4bc5ac48d3f71742114ba74b3f65eb4b2b5df6a19516b84. 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/GBC7N1045807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaffbfecca402be50c8948174f866d033c20b8f92b912afe18f61203a6e318ef. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/GBC7N1045808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5f4c624ccf89b5d7633a613abc613dd591bcabf3324a3ae7734dee259efb5a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBC7N1045809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f528bc36ba4b05214215a903562868d07943c8140c78112b191b4fa2563386. 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/GBC7N1045810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28d059711a62bcefe88541c3a97316eff4f61f62bcea3a6f141f58240508813. 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/GBC7N1045811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6695b6b21f15fff0165f7b75b62c69da1e2a67f2cca9c0a521e7eca6a43dc08c. 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/GBC7N1045812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd343b8e9877bf316ba7be306ec138a7d7652dcd45947c36315b9bb7030eb09ad. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBC7N1045813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x569e143b7e743862ca2653e701f59a2ae25430a113b0d374a9a93fdef38c424d. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/GBC7N1045814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7964ceb53a35e4fb747f07b22aa198da8862b3c8122caca6f6225f1f15256d6. 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/GBC7N1045815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc71de91f652a74816a010d9a7c0c7dccca6f9519246675df9616b7fb95ac23. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBC7N1045816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8b1aca8340a018d1a716ab1752314f3a23af42330897d2e05fe23c26728090. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBC7N1045817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049a901c4e64abc6be5bd3d525bc0175160716d926d7ebf51d9f47b0d277be63. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/GBC7N1045818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800b08e67b41e911f9abdf7b319dcc4c3477e71fe987d9530345ebd396397d57. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/GBC7N1045819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8dbf23fe5eaeafe90ed6e545fc65c5bae9a6c4a4d8ad7ea902e731113d8cbf. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/GBC7N1045820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe74ea54f1a69c3a7f68853630fc20dfc39df39692de38b6e6294984f5600cd5f. 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/GBC7N1045821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6b5184a3f3676329588b016fc7f69635ba6effdbc68c745e150d1dd0a145a1. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBC7N1045822.
Rejoice, the Lord is King! - Remastered 2023
Consider the Lilies (20th Anniversary Remastered Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99aab8124709916663192d2f37091bfde4ce4d68664b4974b7c255ccc280849e. 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/US23M2201449.