Sledgehammers
type: MusicGroup
genre: frenchcore
genre: hardstyle
popularity: 3
followers: 731
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x36e07094b8cb81cd4cab57bacfebd80a8d23b82737ad422f6882e9b7d68ccf5d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954573
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954573
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b4329472-ac6d-4826-bbb0-c49ca978b48f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b4329472-ac6d-4826-bbb0-c49ca978b48f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b4329472-ac6d-4826-bbb0-c49ca978b48f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T15:45:29Z
additional property: OTSCanonicalRecord
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 0x36e07094b8cb81cd4cab57bacfebd80a8d23b82737ad422f6882e9b7d68ccf5d. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b4329472-ac6d-4826-bbb0-c49ca978b48f.json and https://artists.proofprofile.net/proofs/artist/b4329472-ac6d-4826-bbb0-c49ca978b48f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T15:45:29Z
album: Light, Heat & Ash (The Ritual 2017 Anthem)
  type: MusicAlbum
  date published: 2017-10-17
album: Creation EP
  type: MusicAlbum
  date published: 2018-11-21
album: Twisted
  type: MusicAlbum
  date published: 2019-06-17
album: 5th Segment (Operation Raw 2019 Anthem) [feat. MC Renegade]
  type: MusicAlbum
  date published: 2019-07-11
album: The Unfinished Album
  type: MusicAlbum
  date published: 2021-02-12