The Male Choir of Valaam Singing Culture Institute
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 0x0b7faef501ea69be973ab0a4bbc764f9ae4d5d222d6df35fd91618b17577f3b6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/46839bab-de92-4b1a-8b2a-838b3084d874.json and https://artists.proofprofile.net/proofs/artist/46839bab-de92-4b1a-8b2a-838b3084d874.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x80c02112890d1e7a0d8ad12efb70eeb29239d367f4960464817a7a263d946762. 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/CZH401105111.
The Legendary City of Sevastopol: Russian Soldier's Songs of the Crimean War (1853-1856)
Canticles from the Time of Peter the Great
Songs & Marches of the Russian Imperial Army
May You Live for Many Years, Orthodox Russian Tsar! (Arr. I. Ushakov for Male Choir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa191ddc8ea7c4af98f0a99c01a92b83ce8a6358394df3ab270b5ce109df4cab1. 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/CZH401110635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a0389d81280d289fe7d797e900c3632f75bfd7d4e40f011ee551b677a12a4e. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/CZH401110616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6bdad285bf23ab80f07ae9272c12ab6412a1ca3ed3588e07c7e0f9013dfeb1e. 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/CZH401110650.
Eternal Memory (Arr. S. Trubachev for Male Choir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64609d1900d5d4b8253448ce388ec6ccc094bd3a0f8fbf2857a0ebadaab0ca3d. 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/CZH401110658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f0a000924b10a03f971eb1bd89b60f15d054c41e766cb7604e992ed949be21. 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/CZH401110646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf630c535e103510be76ca5418ff331b1310074035ad06f455ad70cea974fcf. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/CZH401110648.
The Holy Cross Is a Protector of All Universe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db2268075e35ac05f39ca6eca66dff6293b82340696d0c30e86a5b7e732139a. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/CZH401110661.
Kol' slaven nash (How glorious Is our Lord in Zion) [arr. I. Ushakov for male choir]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c677ce2a6519dc4f01e6b803e1794b249bee2115e3cf583f98fb5507cf40e13. 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/CZH401112903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff6cd4c168b7ef7c650d16b4a7217d759954ce74d2c2fe7fee34602e5675095. 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/CZH401105662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec2c7240f646e99cddcce6bd670b0d307c38c03fd70f039f0c47c2591324f39. 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/CZH401105528.
Let My Prayer Be Set Forth in Thy Sight (Arr. I. Ushakov)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd209004d0bc0ec9aea92ceca17a3adf15e87a8caa92d8673835fed42154549c. 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/CZH401105529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62da889b6d0ea8b8f0827fabebea5d82f2958c1b77b589ae12559bc7780db04. 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/CZH401105135.
Warrior's Hymns & Songs of Russian Empire
Preobrazhensky Regiment March (Arr. for Male Choir by Konstantine Nikitin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2030e00f7d3ba15187db007f6c6e8da71189b92c98c2d4251b36de1d5a1049. 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/CZH401109836.
How Glorious Is Our Lord in Zion (Arr. for Male Choir by Igor Ushakov)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad869b01b68a9df0ce3bcc72031b630d58be6e49a3fb2b936c94731f91ab028. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZH401109833.
We Will Bravely Go to Battle - White Army Song
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8351a2a8edb54482a6ed4fe720d5dd671aee71a404e52ed48f021cb7674d46. 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/CZH401109850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ac8f8b85ccf0703868ac64ff34d5b017200e0cbb8895d5b9d585f4d18168fa. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USA371667404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401f768bd78f17418969a435f822eb5a5df7f6711873e9608b5461ee685f7d63. 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/USA371667405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4cb1bf0a713a322bd1e770584b48f19f78405445868f9865375172913992c57. 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/USA371667406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678d2f9bafa353a399e88042d8142c201dfda027ca58d268e04ad7fe2fcbe9ac. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USA371667408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d8c27561f8afbe10c6fd0d4ddec0354034970e8990367bc5f8a580b74dc716. 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/USA371667409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8011aff5b9b6848640802cda2ffd9318b1aaa846625c7e7af8651d69f8c206a. 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/USA371667410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23250ee60b9ec47f689c12fcb3bf2dbcb59674d4acf9eaaca20d24ca50e7886. 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/USA371667412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f3df1585c4ffa56ecd451b0f50949d27972fa4f23aef082eb3e4ecc4334984. 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/USA371667414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb23faf2907487d8eb61e4f2a4ad15f5ef0c260bea56f16e712f1bd6e915cca. 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/USA371667417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6d8c077c222269366e5c2f73e11c929aa94e8d8053c5957b40caeb8642b898. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USA371667418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80500cb1b47b438e448cb659f56bc9d4ae6e67b752875e447b3faab6247ecd5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USA371667419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf221daf03212ee3763781fd6d7d0987cbf75c218fce479eee34149d884b53c. 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/USA371667421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae0c30b4bcf5f93258b9d2e4915c38347e8abc04eb5a8d2af59324128cf807c. 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/USA371667423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03664800530b6d0e3939df1823fcc45add29e53bbd7be6f13a2461c69a2fffe. 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/USA371667407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd046e7b088db3468ed00f8dd2b1f7cbf7024b7f53e16f58e0fe298ac8bdb273f. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/USA371667411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801eedfca7a4441a37d6419d7ef02268e8f900849a1357a82b647864df97362d. 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/USA371667413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ddb4a4c3701bf6158f9086bd2a40cbc336f58afbe72f1bd4489aaa33221346. 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/USA371667416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54db59e75ddfae3973292874a661afe06c588648909d0ca7124f53e389d96d98. 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/USA371667422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff526c4cd8ddea3a51288d9b987974563cd798deaa6dbfb4e6950bd284e3d07e. 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/USA371584965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485b2695009e18d52c50b9200e8bd7c49cf064507ce025831391905a49452bb9. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USA371584950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b25f6d7b6cd7dc142e33e1034dcab76087d936a9fb09568635d0503d118cad. 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/USA371584959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5560da0cd412dfbca9454863847d2fa42d2fa0772a9758825736b3ebf61ce5. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/USA371584960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1f972b66437ee5db3353e3455fa45c55304d8e73edda778127ac470a020dde. 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/USA371577091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bb3b5dbf12799fd254d0fb4d40dffe007d24b5ffb01b7451dc5abc0dff5eed. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/USA371577093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080dd585c10bb8e833c695b28017139935494bc70f8397cba906b8609c3b1d02. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371577077.
Foreshadowing Your Resurrection, O Christ God…
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da300a897f592e43e9d6d4e7e498c83a3186a441207c2b0cec63e047c7997a1. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/USA371577082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43da593fc21a922cfe9741c9c476cc7a7ef1388ca34553b30a0d6e60b0353675. 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/USA371577095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0006bceca2befa9773b3c9e5c34364d0a71dc1646d423d85eb42f3a07e948949. 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/CZH401105541.
Foreshadoving Your Resurrection, O Christ (Arr. S. Trubachev)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810e830f9ddc70fea47edaa290e783bc3ae93a631563366f9467c90171a34e8f. 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/CZH401105550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c34734581d64ade9c29fc8e2fbb75a0aba32463f81aa57dd9c0c9767206d340. 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/CZH401105537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea73df11b0441f3f7d80ca7f5b4c583bd489f3d21e3f671cea6ab1da0ffbfae. 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/CZH401105519.
The Disciple Agreed upon the Prince of the Master
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2351eb51c480dcc4b408f52e6f9a1249a81346374bd641c42b070fab5a4fcebc. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/CZH401105520.
By Pilat the Judaic Meeting Obtain to Crucify You, God
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0edf8280045e9a31fc79b6ca8ca643c83bef48376e495bbb81c0b7ea2b53f796. 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/CZH401105521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e7b12d69afb44982c81ab2c84d7db23dcde0ad777d55e089c4fe087d500bf8e. 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/CZH401105655.
Rejoice, God-Chosen Twin (Arr. I. Ushakov for Male Choir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59cca44c26a00e38c27f9ad9d201708dea7db76f4ca5bd0c2b69bd08468ded53. 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/CZH401105657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b65aaa96a86ab1d45129ab0cd694b62ed1f27b51f84c5fa2530cae9c424fda9. 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/CZH401105665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1f1b635da71a9ac044d633d229a19211d1734dd4ed45fad0ba3bc4f55b0ece. 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/CZH401105648.
Taking Up into Heaven (Arr. I. Ushakov for Male Choir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fa02529cabbc9f98b7ec80338e84366ae0e8d3c0538b1cff1ee31695afc6eb. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/CZH401105658.
Having the Divine Grace of the Teacher (Arr. I. Ushakov for Male Choir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2185d934d299491c0f5010bff59f7e67561106937f072bb4b66d65f03f872943. 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/CZH401105659.
It Is Truly Meet and Right (I) [Arr. K. Nikitin for Male Choir]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10cb7408149dd7f9343a752907efb707b301af5738dae28968ff53c1a4a793a3. 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/CZH401105152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7355301e17231bc10caaf3c44af48174b7a63d35a1ddb3fc79f9fa12cc23cab3. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZH401105166.
Russian Orthodox Service, Op. 40: No. 2, The Pre-Eternal Council (I)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea671d8e7f4ddc08d142096eb8ca4894d9101f888ffacc71a44bfeaa74fa86f. 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/CZH401105150.
Joy of the Heavenly Hierarchies (Arr. I. Ushakov for Male Choir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039d135dd7af4838ecf562c9f62e3a4236f481c9ece5905f4498751041bd9e69. 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/CZH401105160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b3b668b572e2e3f8c769934bd750013153b9d022fad83681cc3e9fe7dd5683. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/CZH401105163.
The Exaltation of the Konev Icon of the Theotokos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e74db43e03f35282a9099e71eba8e927d18a00cb1d33586d693a8bde9a65bb. 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/CZH401105172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8feda151dd3fbbcb0969a8cd3256596407720cde28d9b68aeda33c2b8565ff1. 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/USA371643959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d43fe77296044b1af9588c3ff34147e198609df17f51a1af97430fbffc97602. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USA371643962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ed016837439f89652da5ac0542ecb3823855334ab75c1267a822e6ce5f28e0. 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/USA371643969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7825940dd91c3ad1d95e44b0491dd86ce4f677c81687f542146a9705480a26ee. 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/USA371643970.