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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688943c1110d00e606666e65c08e28d47e133ea02df59f798c0ffb8cf6b4092b. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c27eec99-4f4e-4fee-8f07-df4ab8b69606.json and https://artists.proofprofile.net/proofs/artist/c27eec99-4f4e-4fee-8f07-df4ab8b69606.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hard Kryptic Records Volume 1: (Not So) Live On Fear.FM
(Not So) Live On Bogotrax Festival Radio (feat. Morbid MC) [Presented by Morbid MC]
Hard Kryptic Records Yearmix 2014 (Continuously Mixed by Braincrushers, E-Rayzor, & How Hard)
(Not So) Live on Hardcodelia Colombia [Continuously Mixed by How Hard]
Return to the Pit (A Decade of Hard Kryptic Records)
Hard Kryptic Records Yearmix 2016 (Continuously Mixed by How Hard)
Hard Kryptic Records Decade Mix, Vol. 2 (Continuously Mixed by How Hard)
Hard Kryptic Records Yearmix 2017 (Continuously Mixed by How Hard)
Hard Kryptic Records Yearmix 2018 (Continuously Mixed By How Hard)