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 0xa2d398ab3cb5ea83ac7720ae8afb4e0fd42d5f44c399e81c7d332a1c7218715a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/997d3c82-83d4-41d1-acce-cc33767d3724.json and https://artists.proofprofile.net/proofs/artist/997d3c82-83d4-41d1-acce-cc33767d3724.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Shostakovich, D.: Hamlet Suite / The Gadfly Suite
Shostakovich, D.: Zoya Suite / The Fall of Berlin Suite
SHOSTAKOVICH: Fall of Berlin (The) / The Unforgettable Year 1919 Suite
The Unforgettable Year 1919 Suite, Op. 89a: The Assault On The Red Hill, "Assault On Beautiful Gorky"
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 0x2516fe1b5df536b9f7d7b5cc27c8588127371b7464f469b97f069d1b2f3931d8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/HKI190207721.
Ballet Suite No. 1 (arr. L. Atovmyan): Romance (The Limpid Stream)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7170c534f0278105e0da5d5e396001d29c331d5854a7c9e61de1db75ddd8e322. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/HKI190436003.
Ballet Suite No. 1 (arr. L. Atovmyan): Polka (The Limpid Stream)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4c5257efa1f276e64b9509e8c8d2fc3b6d92c70d58d9364391125005f6f9e0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/HKI190436004.
Ballet Suite No. 1 (arr. L. Atovmyan): Galop (The Limpid Stream)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c26bc4c09ef75bf3610a48557a66ca8c0cf017279a9a5ea0a9099d343c6f1e3. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/HKI190436006.
Ballet Suite No. 3 (arr. L. Atovmyan): Waltz (The Human Comedy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d4835b48d555468e2ecb37791ad11ce99c67bb887fce4318f8f9ab57e35795. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/HKI190436013.
Ballet Suite No. 3 (arr. L. Atovmyan): Gavotte (The Human Comedy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d28226ec26dd6d8b30b6ff2bc460c565bc030adf8ca0ffa03b241be96a0b36. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T01:02:04Z), 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/HKI190436014.
Ballet Suite No. 3 (arr. L. Atovmyan): Dance (The Limpid Stream)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69628f503f56cf973bf0adb6554191450d0aa0a652b7fcc52ea427a3e44c9e3e. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/HKI190436015.
Ballet Suite No. 3 (arr. L. Atovmyan): Elegy (The Human Comedy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8e3edf38c12c91b7c1b9f80b856bbcf75445908834d4a3615f3460658b9899. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/HKI190436016.
Ballet Suite No. 4 (arr. L. Atovmyan): Waltz (The Song of Great Rivers)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6c88022ab207f2e12af26ada2f68120b41dfdc032c06d342018cb1b7dec22e. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/HKI190436020.
Ballet Suite No. 4 (arr. L. Atovmyan): Scherzo (The Bolt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a00e68ad3861d81dd164ed1feba02a004a987d12cc2bf46188fbef6f75e5132. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/HKI190436021.
Shostakovich, D.: Young Guard Suite (The) / Zoya Suite
Shostakovich: The Young Lady and the Hooligan / Ballet Suite No. 2