Hilarion (secular name Grigory Valerievich Alfeyev, ; 24 July 1966) is a retired bishop of the Russian Orthodox Church; currently he is the retired metropolitan of Budapest and Hungary. He is also a t
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 0xa99ece755ed246f18ee0593a9e6a0f40596b4da0e59ca53263db092791aca4ac. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6cdeb493-85a2-4ef9-845a-d80815b59b28.json and https://artists.proofprofile.net/proofs/artist/6cdeb493-85a2-4ef9-845a-d80815b59b28.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Metropolitan Hilarion Alfeyev: St. Matthew Passion
DE PROFUNDIS - Compositions for orchestra and choir
Metropolitan Hilarion Alfeyev: Stabat Mater, A Song of Ascents & Christmas Oratorio
Stabat Mater for Soprano, Choir and Orchestra: I. Stabat Mater
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 0x5ef5fc57be565216ccfb8769a1c415dd75d8a07eb7b7054a09330cc965fdb48c. 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/UK2Y21504252.
Metropolitan Hilarion Alfeyev: Music for Orchestra and Choir
Metropolitan Hilarion Alfeyev: St. Matthew Passion (English Version)
Metropolitan Hilarion Alfeyev: Liturgical Chants