Holy Knights is a symphonic power metal band from Palermo, Italy, formed in 1998. They recorded their first demo, Gate Through the Past, in 1999. Shortly after releasing their début album, A Gate Thro
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 0x49abef88d6e4a1d08c81d987fb34d21e540b4987d1dfe778973130583646d6cf. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc14d3c8-da46-4f9c-99ec-f40f52baf01e.json and https://artists.proofprofile.net/proofs/artist/fc14d3c8-da46-4f9c-99ec-f40f52baf01e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Demo 1999/2000 (Gate Through The Past)
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 0x90c9cf51aac0a7c074e8a451c4a708fb542d53cdc5dcbce038148b554a853f1b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FR2X42009828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61257fc87c8f3bfc3399e1646907a5400b6db4be55eb73263e69be47e9978674. 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/FR2X42009830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7cf7b9c9729d4dd4b921dc78ad52026d4cb20444a6af161f5b5426642e4270e. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/FR2X42009832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70c0954a2aac022c031906096280dcf1295c9f303b1f8ca957d0a20e06e7b48. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/FR2X42009837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579777b006b078ff778de634a76dacda076e18ecfe28b9fd531cf7d07d0732a4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USA561279817.
The Demo 1999-2000 (Gate Through The Past)