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 0xd618763fa1345e6471b633f2db14305eef528140b7aa56828cd5de82812c9700. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6bab65fe-c886-4804-9b52-9588404be8b7.json and https://artists.proofprofile.net/proofs/artist/6bab65fe-c886-4804-9b52-9588404be8b7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Christmas Oratorio: I. Lo! How a Rose, e’er blooming
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 0xa47b55c0a7758d548fcd12fc9999e4a28a7bb175d4db1c8ccdf2eeaa5f469105. 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/GBEBL2332102.
Christmas Oratorio: IV. Hymn: Thou whose almighty word
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b24b30ed364892239cb8dcbfe0017aae65863bda04060483884a0530fb01dbb. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/GBEBL2332105.
Chilcott: Christmas Oratorio: XIII. Hymn: As with gladness men of old
Chilcott: Christmas Oratorio: VIII. Hymn: Shepherds in the field abiding
Chilcott: Christmas Oratorio: IV. Hymn: Thou whose almighty word
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b24b30ed364892239cb8dcbfe0017aae65863bda04060483884a0530fb01dbb. 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/GBEBL2332105.
Chilcott: Christmas Oratorio: I. Lo! How a Rose, e’er blooming
Requiem in D Minor, K. 626: Sequence: I. Dies irae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4978068ce233771d3c9434f04051a0d488af637730e291272d5b1ea99234838. 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/USB8U1602112.
Missa Papae Marcelli: Masses, Book 2: Missa Papae Marcelli: Kyrie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678e3a53a33f3982a7fa3ea27cf4b3b50ef9c615404808b36f849911e39e5756. 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/USB8U1602138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179be90e9193bbf7a048147ea3ede8bab1a5751795decf64ef5e1c0cebb9631d. 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/USB8U1602114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d6dd3fc6abe42fb5e8beafc236fe4987cd837ed22afeec954f0b04c014f082. 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/USB8U1602121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8eaefc58cad4fa565ff75e307297ff28774e4e83501a877d0b5caa26a76119. 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/GBEBL1212202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5266a14a919b84fc1914c2ee3deaeb184b9a6822958e134d153d8b8a58ab50f. 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/GBEBL1212204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf69318b07f9b60342de4336ad36310dea62f505e8015881f5b92f861435001b5. 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/GBEBL1212209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a2cc8f526cb69b17c8577311c81648c38978b8b51e2bbf6c4db8c82286983a. 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/GBEBL1212211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eaef7b4b116adbf23c897013a062c6d719053089bef51b637cfa8b89978cd41. 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/GBEBL1212217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d9d8c710e8749821b0504c577eb3b52621929a95ed8610b9bea891e65c0c9a. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:08:41Z), 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/GBEBL1212218.
Blessed city, heavenly Salem (Version for Choir and Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a71ce7c94961875611b9461de03e9f9cda330c4d6c52876ee6a4c8b1e285403. 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/GBEBL1414403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a340a9bef82adb8431e3e0f4c34eac4870f229d0de2766fc5e43221113f8df. 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/GBEBL2332403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025be9f23e2d47d37dbff8dee12d373f34c93699f5d7394abd3e37a58be3671f. 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/GBEBL2332417.
Orchestral Anthems: Elgar | Finzi | Dyson | Howells
Blessed city, heavenly Salem - Version for Choir and Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8582fedb0f1a6733cc82e9fe1a4011fa7fcf97d7ccda5856d41b884abbe65c74. 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/GBEBL2329101.
Evening Service in D: I. Magnificat - Arr. for choir and orchestra by Douglas Hopkins
The Girl Choristers of Merton College, Oxford
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30af987ee1fbf273c25939570a139c7498a9e6572fbdda783e829f9604b5e9b0. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/GBEBL2329103.
Jehova, quam multi sunt hostes mei - Arr. for choir and orchestra by Edward Elgar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be69dfe80c9a65346d0be4edfcbb56c716278c76a3d07144b134a893acaad3b. 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/GBEBL2329106.
Lo, the full, final sacrifice - Version for Choir and Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563cdd5825deaac0b5a08a4449846bfefb9ea953e77c4ec130a18f00f8eeda38. 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/GBEBL2329107.
Te Deum in G - Arr. for choir and orchestra by Arnold Foster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7d4673a7d5630fbba3da4fe1451f8085d9ddf2da6dbe39c8b7331f3aa71b21. 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/GBEBL2329108.
The Spirit of the Lord - Version for Choir and Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5bf6c216269a0a5d02bcf8703c1e3230fd3c75b17f426b883791e8c75858009. 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/GBEBL2329109.
Ian Venables: Requiem, Herbert Howells: Anthems for Choir & Orchestra
Sleeper's Prayer: Choral Music from North America
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfef67c0d4ee8e6af66885806f90e2fef1f1c572f5190c050d3ba2c64a6dd634. 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/GBEBL1923201.
Gabriel Jackson: The Passion of Our Lord Jesus Christ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c8249814f643a5a5ba135b846e473eceb2e85a72a47dc5c08750e20e0a3da5. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBEBL1820705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ad1c6b1ead9ce6dd93ff59f84df3835a9c358c185c3d9678bd7f3d4119887b. 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/GBEBL1719201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77783f38afc9cb22b57d903ea14af49cbc8114099acff1446765a7456d978967. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:35:11Z), 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/GBEBL1719202.
Viri Galilaei: Favourite Anthems from Merton
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5a39bc41f3210a90a5d38a36a49fecee28240cfa7b86c6bfd2efad0b7ec285. 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/GBEBL1313402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c908a61052deac00ea904ed5c6f77fbd2f31ceed48bd65533a3d802916ef559. 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/GBEBL1313406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03742a73f6660083e10b5284067060fa04b0d66295f9c1e6038d38d9f670dc0d. 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/GBEBL1313410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb8e1d3ab0b15c66e1b60b3ffd7b3d1c38b3cbd4ff12f979a4971d480d89d301. 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/GBEBL1313412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b1ba7c288ddcac8cd6e72f7dd5dbb09701c01020adae3ae4241fa5be6667fa. 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/GBEBL1107202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09d1fb12c501238292875d54c09e28f7885939440838a6bd85bf440cb500199. 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/GBEBL1107204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa061f3d4d0b503e00747f3336537946f773a02d532926cc5248f39a01c81cfcd. 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/GBEBL1107205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926666bdf43b09517d7f5fa390480d7411ec5b27a724c5c6829d3d90ad7001bd. 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/GBEBL1107208.
This is the Truth Sent from Above (arr. for choir and organ by Ralph Vaughan Williams and Christopher Robinson)
In the Bleak Mid-Winter (Arr. for Choir and Organ by Mack Wilberg)
Evening Service in D: II. Nunc Dimittis (Arr. for choir and orchestra by Douglas Hopkins)
Ecce sacerdos magnus (Version for Choir and Orchestra)
Four Anthems: I. O pray for the peace of Jerusalem
Four Anthems: III. Like as the hart desireth the waterbrooks