Marcus Heier
type: MusicGroup
popularity: 2
followers: 91
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8db79468f1c62349888b5b17bb4d06c30ffd64571e362155d906a6e13cbe6099
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954689
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954689
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e1f6d55f-c493-43d4-a306-c59118add77d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e1f6d55f-c493-43d4-a306-c59118add77d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e1f6d55f-c493-43d4-a306-c59118add77d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T10:35:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8db79468f1c62349888b5b17bb4d06c30ffd64571e362155d906a6e13cbe6099","name":"Marcus Heier","registered_at":"2026-06-21T07:20:38Z","symbol":"NIM1860590","token_address":"0xf04d8e140a49e8d155ab0c506132eb218e0829af","type":"artist","uuid":"e1f6d55f-c493-43d4-a306-c59118add77d"}
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 0x8db79468f1c62349888b5b17bb4d06c30ffd64571e362155d906a6e13cbe6099. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e1f6d55f-c493-43d4-a306-c59118add77d.json and https://artists.proofprofile.net/proofs/artist/e1f6d55f-c493-43d4-a306-c59118add77d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T10:35:31Z
  text: {"copyright_id":"0x8db79468f1c62349888b5b17bb4d06c30ffd64571e362155d906a6e13cbe6099","name":"Marcus Heier","registered_at":"2026-06-21T07:20:38Z","symbol":"NIM1860590","token_address":"0xf04d8e140a49e8d155ab0c506132eb218e0829af","type":"artist","uuid":"e1f6d55f-c493-43d4-a306-c59118add77d"}
album: Fading Sun
  type: MusicAlbum
  date published: 2019-12-06
album: Lonely Nomad
  type: MusicAlbum
  date published: 2020-02-28
album: Beneath, Under, Underneath
  type: MusicAlbum
  date published: 2020-10-16
album: Lullaby
  type: MusicAlbum
  date published: 2025-03-21