Marcendex
type: MusicGroup
popularity: 3
followers: 39
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2fcd9a746840fda8df95d03a3675a17ea78bd6b8ab1aaa9ca5eb7f32be7f74cc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954569
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954569
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b36fbcc4-d651-4b5c-a1e6-0c594190221e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b36fbcc4-d651-4b5c-a1e6-0c594190221e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b36fbcc4-d651-4b5c-a1e6-0c594190221e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T14:36:29Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fcd9a746840fda8df95d03a3675a17ea78bd6b8ab1aaa9ca5eb7f32be7f74cc. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b36fbcc4-d651-4b5c-a1e6-0c594190221e.json and https://artists.proofprofile.net/proofs/artist/b36fbcc4-d651-4b5c-a1e6-0c594190221e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
album: Hundred Miles (Sped Up)
  type: MusicAlbum
  date published: 2023-03-09
album: Interlude
  type: MusicAlbum
  date published: 2023-03-19
album: Wine Pon You
  type: MusicAlbum
  date published: 2023-03-19
album: Outside (Sped Up)
  type: MusicAlbum
  date published: 2023-03-27
album: Wine Pon You
  type: MusicAlbum
  date published: 2023-04-01
album: Jealous Girl
  type: MusicAlbum
  date published: 2023-04-10
album: Jealous Girl
  type: MusicAlbum
  date published: 2023-04-14