Nokturnal Mortum are a Ukrainian black metal band from Kharkiv. They were one of the founders of the Ukrainian black metal scene. They are also often considered pioneers in the early National Socialis
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 0x16b5e22af515cfa1097ebeef2592b5b8516cf27378674fa63626b0a641f74d11. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a5ed874c-4d86-4736-b303-6d984d3efd41.json and https://artists.proofprofile.net/proofs/artist/a5ed874c-4d86-4736-b303-6d984d3efd41.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Return of the Vampire Lord / Marble Moon
To The Gates Of Blasphemous Fire (Remastered 2016)
Мировоззрение (Remixed & Remastered 2013)
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 0xf718f1a45c32e4a8ae337a0f801bb5b2557be7a3d249db78620967f97fce02fd. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T20:53:40Z), 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/ITV111821317.