The Brabant Ensemble is an early music choir based in Oxford, directed by Stephen Rice.Canons and Canonic Techniques, 14th-16th Centuries Page xxiii 9042916818 Katelijne Schiltz, Bonnie J. Blackburn
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 0x9e36c284061b1676703498c96bb2072ef77e76a58909acb06f134779a50be5ae. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8369bce-44eb-45ca-bdb5-4be9c52a975d.json and https://artists.proofprofile.net/proofs/artist/a8369bce-44eb-45ca-bdb5-4be9c52a975d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music from the Chirk Castle Part-Books: Devotional Works from the Tudor Period
Hellinck: Missa Surrexit pastor – Lupi: Te Deum & Motets
Magnificat super Si ignoras te: II. Quia respexit – Quia fecit
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 0x7145dfbf0a5df329c439dafd02efe4ff8681946eaa50e34e3da8587ddc386e48. 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/GBAJY2444706.
Magnificat super Si ignoras te: VI. Gloria Patri – Sicut erat in principio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3205a1e829e2617bacaa62811f62ae985e67a7324894db68b5b0562fb082df63. 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/GBAJY2444710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae89cc11cd22452b6f65703a3592a8e97f71cfd389a5608971d483c4d71fa0e0. 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/GBAJY2444711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224f80b22618036efe422cfea19daf9eb9e4273b6bf00a83200dea5c2b01b3e8. 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/GBAJY2444712.
Sacrificate sacrificium iustitiae: I. Sacrificate sacrificium iustitiae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47aca9e4a303b236143f319f1470ec0525c12f6e3dd88671ddd1163ab055ff8. 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/GBAJY2444713.
Missa super Veni in hortum meum: I. Kyrie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5d84bbb902665816ec84ef5d76c2bdcc8df82c5f7d1653d14c02a6d8a9fe16. 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/GBAJY2444715.
Missa super Veni in hortum meum: IV. Credo in unum Deum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed6a853316b29cad8c68b660eeb6cb9896d30c661c687143309aa7d690c7453. 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/GBAJY2444719.
Missa super Veni in hortum meum: V. Et incarnatus est
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52faba01f022acd02a8bdb867b8137408ba133a68f38a5d89c092b3aee63cd9a. 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/GBAJY2444720.
Missa super Veni in hortum meum: VII. Benedictus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812094aabc90b89a41c46a6dbf53c864fd2494a5c25429c2f4768564ad0dd528. 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/GBAJY2444722.
Missa super Veni in hortum meum: VIII. Osanna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78fd12e96f9a2b68ef5d464c6585a7c9e92e3daa9248308e0085385f65f1786b. 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/GBAJY2444723.
Missa super Veni in hortum meum: IX. Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284fcac91e0102354b64bb2d12eba26fb2e136f72f1fd297137373ce4c10eceb. 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/GBAJY2444724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb606cc35476c31725fde43f74e01bd8e2e4b5050e1aa2b7467ecf77024a57f45. 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/GBAJY2444728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb57ea240a53375aa49b2544ec701985c40704da076547568db7713605a6a4cd. 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/GBAJY2444730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c7c3c8f77a60eabf0c678843fba8478f86ad9e68543fe0b1917f8134ad01df. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAJY2444701.
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 0xe105f5dd823815daebad6e809a23b158096a34521a82bade463a15b18a5f74ec. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GBAJY2444702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7762e00afe43fca304cfad9bc6d9be60a0201b0060fa6f47bfc64da925ecf0c. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/GBAJY2444703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8769e0dc32471c9cf05d896d50093aad7eb0bf83d74cc96953fe7f2bc938cd4. 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/GBAJY2444704.
Magnificat super Si ignoras te: I. Magnificat anima mea – Et exsultavit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe732d3f9b6b194d80165ea25229e5ed4fac892566bada8963f47cd1a4177ef4. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBAJY2444705.
Magnificat super Si ignoras te: III. Et misericordia eius – Fecit potentiam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb1cd62d7045885a70280adc007922c6412d94e0eba17596f5e53fbd40a5d78. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/GBAJY2444707.
Magnificat super Si ignoras te: IV. Deposuit potentes – Esurientes implevit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0a81eebea2437bb7cc5c7d5316703a74b4effc8ee4d1cdd195589f55aeca0e. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/GBAJY2444708.
Magnificat super Si ignoras te: V. Suscepit Israel – Sicut locutus est
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e47b1fff398c5f36ee94dff64390d5ae41214607ebf1b2ffe61f766505f1458. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/GBAJY2444709.
Sacrificate sacrificium iustitiae: II. Immola Deo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82417f579ffc7de4104a8be4ec3ad2ea5fef44e4e04174b262c2cea570473ca. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBAJY2444714.
Missa super Veni in hortum meum: II. Gloria in excelsis Deo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650c5befeaa5326df189c9abb4136153b1e63a055b5928c44be93733a53ec0e6. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/GBAJY2444716.
Missa super Veni in hortum meum: III. Qui tollis peccata mundi, miserere
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a741bb6811a3055e4be8f692f4c37fbaa544ccddecad4d868935dee482c8cd3. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/GBAJY2444717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ba09c8fc73b970cc1da9083f453d02ac4be93c13461e5173864afc9b860e07. 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/GBAJY2444718.
Missa super Veni in hortum meum: VI. Sanctus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb2912839c49ec2f9bc00c16d1eb69e32ccb1ae2e447c72502110046e5202e3. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/GBAJY2444721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e987b1c1cbe27a809e5dff6b78f333f0c322c77223b691ce2b8eb1c13bf631a. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/GBAJY2444725.
Vana salus hominis: I. Vana salus hominis / Dominus mihi adiutor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e71ac8686e0e5ec92150ea73c8bfcc615d6881077d4d9e5cf966f4d9fc9a3b4. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/GBAJY2444726.
Vana salus hominis: II. Nil igitur / Dominus mihi adiutor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302e7a69ab4ea194c4a13a55bc3e9fcb6e1c43e6f480b15616271965555484b1. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBAJY2444727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da867e6be119557cd5b44aba45ef6c5978ccb3767ff174cf49bfcf7d504aa09. 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/GBAJY2444729.
Alma redemptoris mater / Ave regina caelorum, NJE 23.2: II. Tu quae genuisti / Gaude gloriosa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc4f444e1200ec23233ef587364fa3d49579a209ac730a1e1487852528998bb. 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/GBAJY2132104.
Mittit ad virginem: I. Mittit ad virginem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2542cc7ae1af1b8cd70e7aece7ece28d4b7cca613540532e9d1bc3045aef9743. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/GBAJY2132101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a12434c734f1ed3e24f902afface3aff3ea8a7394defd12a29d5bafa62cd50. 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/GBAJY2132102.
Alma redemptoris mater / Ave regina caelorum, NJE 23.2: I. Alma redemptoris mater / Ave regina caelorum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476be5d595724af3a7f65a3b5dbeb25ba85de747297efdf2fbb523ea5fa96104. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/GBAJY2132103.
Stabat mater a 6, NJE 25.9: I. Stabat mater dolorosa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac68a09e00f3d0bb412a1d1ddef8f70c197acc9749cb73e8a4258d6aa6d37703. 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/GBAJY2132107.
Stabat mater a 6, NJE 25.9: II. Eia mater, fons amoris
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81992bb917c4308341d986cf1fa3b04bbfdec5b105d3b8b0afbf7e4f5f0fa6b3. 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/GBAJY2132108.