How Hard
type: MusicGroup
genre: gabber
genre: hardcore
genre: speedcore
popularity: 2
followers: 403
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x688943c1110d00e606666e65c08e28d47e133ea02df59f798c0ffb8cf6b4092b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c27eec99-4f4e-4fee-8f07-df4ab8b69606.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c27eec99-4f4e-4fee-8f07-df4ab8b69606.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c27eec99-4f4e-4fee-8f07-df4ab8b69606
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x688943c1110d00e606666e65c08e28d47e133ea02df59f798c0ffb8cf6b4092b","name":"How Hard","registered_at":"2026-06-20T19:37:10Z","symbol":"NIM1696666","token_address":"0x4ad3f0acc3b902ece2b0e0e75da3e1173896b2b6","type":"artist","uuid":"c27eec99-4f4e-4fee-8f07-df4ab8b69606"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: 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).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x688943c1110d00e606666e65c08e28d47e133ea02df59f798c0ffb8cf6b4092b","name":"How Hard","registered_at":"2026-06-20T19:37:10Z","symbol":"NIM1696666","token_address":"0x4ad3f0acc3b902ece2b0e0e75da3e1173896b2b6","type":"artist","uuid":"c27eec99-4f4e-4fee-8f07-df4ab8b69606"}
album: American Rebels
  type: MusicAlbum
  date published: 2010-01-15
album: American Rebels
  type: MusicAlbum
  date published: 2010-01-15
album: Hard Kryptic Records Volume 1: (Not So) Live On Fear.FM
  type: MusicAlbum
  date published: 2010-02-05
album: Unknown Faith
  type: MusicAlbum
  date published: 2010-07-02
album: Unknown Faith
  type: MusicAlbum
  date published: 2010-07-02
album: Path of the Warrior
  type: MusicAlbum
  date published: 2011-02-18
album: Path of the Warrior
  type: MusicAlbum
  date published: 2011-02-18
album: RMXD
  type: MusicAlbum
  date published: 2012-01-06
album: RMXD
  type: MusicAlbum
  date published: 2012-01-06
album: Dragon
  type: MusicAlbum
  date published: 2013-04-05
album: Dragon
  type: MusicAlbum
  date published: 2013-04-05
album: (Not So) Live On Bogotrax Festival Radio (feat. Morbid MC) [Presented by Morbid MC]
  type: MusicAlbum
  date published: 2013-04-26
album: Hard Kryptic Records Yearmix 2014 (Continuously Mixed by Braincrushers, E-Rayzor, & How Hard)
  type: MusicAlbum
  date published: 2014-12-19
album: Hard Kryptic Records Yearmix 2015
  type: MusicAlbum
  date published: 2015
album: RMXD2
  type: MusicAlbum
  date published: 2015-01-09
album: RMXD2
  type: MusicAlbum
  date published: 2015-01-09
album: (Not So) Live on Hardcodelia Colombia [Continuously Mixed by How Hard]
  type: MusicAlbum
  date published: 2016-06-17
album: Return to the Pit (A Decade of Hard Kryptic Records)
  type: MusicAlbum
  date published: 2016-09-09
album: Return to the Pit (A Decade of Hard Kryptic Records)
  type: MusicAlbum
  date published: 2016-09-09
album: Hard Kryptic Records Yearmix 2016 (Continuously Mixed by How Hard)
  type: MusicAlbum
  date published: 2016-12-30
album: Hard Kryptic Records Decade Mix, Vol. 2 (Continuously Mixed by How Hard)
  type: MusicAlbum
  date published: 2017-01-20
album: Hard Kryptic Records Yearmix 2017 (Continuously Mixed by How Hard)
  type: MusicAlbum
  date published: 2017-12-22
album: Hard Kryptic Records Yearmix 2018 (Continuously Mixed By How Hard)
  type: MusicAlbum
  date published: 2018-12-28