Bruno Turner (born 7 February 1931) is a British musicologist, choral conductor, broadcaster, publisher and businessman. His scholarship and recordings have focused on early music, especially of Spani
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 0xf4d07cc5b1c680f3808147cd41cdb30f5974135f994d8e03766c5c931aeae29a. Chain 2 (Bitcoin): anchored in block 953598 (2026-06-14T06:40:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0c419168-2168-45f4-93e6-8d196e3a8328.json and https://artists.proofprofile.net/proofs/artist/0c419168-2168-45f4-93e6-8d196e3a8328.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lassus: The Lamentations of Jeremiah (for five voices)
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 0x534bc8a1c0c150082d480acb0bae25613a973def08dbfa8d67c7150615a0604d. 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/USX761112302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b93b9f00b768c24f4d20f4982580da590b8bc05bf837366a13164df5653078. 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/USX761112301.
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 0x32f2a1e37e09df15377ae7f15e558171b404ecb3905c11f26d5ae64459035b22. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USX761112304.
The History Of Classical Music - Part 1 - From Gregorian Chant To C.P.E. Bach
Léonin / Pérotin: Magnus Liber / Feast of St. Stephen: Etenim sederunt principes (à 1) (Introit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5913ba8fb14caaa7decf3eff20ecf776a07bcf9614bfd5e1976070ab2e6d702d. 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/DEF059631808.
The Flowering of Renaissance Choral Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80cd909b504d783f5fe4de0bdd7ac56f01fa3200f5536b72fd8c2cc3a9c65bc. 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/DEF057803754.
Missa "L'homme armé super voces musicales": 4. Sanctus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455e7f0c910c68815edd9961f966eb2ec432b25b83b1bc956cb56e0c176f303c. 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/DEF057602934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667929b0a3f5e7b0101c623af036fa2a3dfaecb491adafbf673a969ba2aa15b6. 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/DEF057404160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67f43b3b735a0969bb2d6cbab148c1fb6a65cb6b122283705477464190caa6d. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/DEF057803751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b386a9997d7356a8f91b716ccd44cef6f06c9bf1221df12c76b496110b34c8. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/DEF057803755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaeb37c24eacd15d95dd2e4265a0404f532d377e946713fda7b93c3ebc3ea344. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DEF057404150.
English Renaissance and Baroque Music Edition
3 tunes new to John Playford's Dancing Master
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7fc0870a2f78ed14b360ddd6380b668811c75101b3012d144e38e403704f7a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEE479502298.
Ars britannica. Old Hall Manuscript, Madrigals & Lute Songs
Basse danse La brosse - Tripla - Tourdion
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c9c28e2bcc1e8db00e83d3ab6c2650fe18e9c6b3bb5b0d3de259baec4aaa8d. 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/DEF057100790.
Palestrina: Lamentations of Jeremiah, Book Four
Palestrina: Missa Papae Marcelli, Stabat Mater, Missa L'homme Armé, Etc
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2d36f1a15903fc6ff77e914371c67348aae9cf04b428bd17fcd5ae5965f1b3. 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/USX760906103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69e6f29460e9e70a58c1ac9088c884f91f8cb526f57f181185358c56aa15882. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USX760906102.
DHM Splendeurs: Lassus: Requiem A5 / Magnificat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031784c9189f214d05640be821391d6bf3c6b8048a5040dddc2d06ab6e616348. 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/DEE477400334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e3ab3e705adb0bef764d6d6d60b272d2ce364145350c7691f8bd05d17298d0. 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/DEE477400342.
Alma Redemptoris mater - Motet for 6 voices
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80d29873f5cd1508b636904f408b7227bbf688d295a6ca1ba01080a72aa77b1. 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/DEE477400344.
Palestrina: Canticum Canticorum Salomonis – The Song of Songs
Di Lasso: Missa "Bella Amfitrit'altera" - 3 Penitential Psalms - Motets
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670b5c106217de5c37dacfd99abf565a4061b6f81e8de6fb6fe255a6acc05c36. 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/GBLGL1270046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51228e9ed6fd88c951a5a8c703e09b16512de8c78713b0953b87ebe86ae0eba1. 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/GBLGL1270047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec40eb0fbb5bf6678be66ac642a8c8aec0586025dfb7b74f3533d77ff1d113b2. 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/GBLGL1270048.
DHM Splendeurs: Lassus: Musica Die Donum/Lauda Sion Salvatorem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef06b2e47651cf7e88cd6023f127c6a95d0743dc55eec7d4da17f3dd0cf8048c. 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/DEF058500681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a67dc5d4424dcfa6d8c17589967f788d553bc66a59f8845fd2627e25ae98f04. 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/DEF058500686.
Missa "Aeterna Christi Munera": 1. Kyrie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afd1f5a23d33812f597b414ccf1553381a11df8efa0a17050f55f6df2b67a16. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEF057402031.
Missa "Aeterna Christi Munera": 5. Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b06f854970f8f0e4b46f517312ac531804b4db4eee93d972ed73723039ed68. 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/DEF057402035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d11cacd5f24827760541035ebae076b2a39e41219ade65b120f8c56168f12a. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/DEF058500690.
Missa "Aeterna Christi Munera": 3. Credo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe300e84c9f27760313e873b0bfdf697bb4e0301215f0318d2d985ec498956a79. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/DEF057402033.
Missa "Aeterna Christi Munera": 4. Sanctus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2a4022076111394099de253723f6777a6b04585411d92efe46f1202939deaf. 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/DEF057402034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4758a8da0e2babfac3e06d2027461e3bf9446f0c119b24ccfd3beba61f8df7. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEF057402060.
Victoria: Liber primus: No. 27, Super flumina Babylonis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3a9a655fbc5d535b71133cc0aa42f467d77c3010a5437bd479dccbf79a47e4. 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/DEA807812107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82225281bb364b498ca1064c41f3c2b7f55b38ffc4f7e032e1a6fe627a3fd480. 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/DEA807812103.
Palestrina: Stabat Mater; Missa Aeterna Christi Munera; Masses and Motets
Tomas Luis De Victoria: Missa Pro Defunctis
Voices of Beauty - Medieval and Renaissance Vocal Music
Johannes Ockeghem: Missa "Ecce Ancilla Domini"
Altenglische Prozessionsgesänge des Mittelalters (Mono Version)