Johann Sundermeier
type: MusicGroup
popularity: 2
followers: 271
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0c05d74c9cc116c08160a22f99f39b934a1ddf238f3d5c6a0ad8aa68527ed913
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d1143d78-9c4d-41b5-b4d8-c0845ab4ceff.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d1143d78-9c4d-41b5-b4d8-c0845ab4ceff.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d1143d78-9c4d-41b5-b4d8-c0845ab4ceff
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0c05d74c9cc116c08160a22f99f39b934a1ddf238f3d5c6a0ad8aa68527ed913","name":"Johann Sundermeier","registered_at":"2026-06-21T01:16:27Z","symbol":"NIM1771081","token_address":"0x90a3728594831c0571a5f936b30e433f8e1b5c04","type":"artist","uuid":"d1143d78-9c4d-41b5-b4d8-c0845ab4ceff"}
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 0x0c05d74c9cc116c08160a22f99f39b934a1ddf238f3d5c6a0ad8aa68527ed913. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d1143d78-9c4d-41b5-b4d8-c0845ab4ceff.json and https://artists.proofprofile.net/proofs/artist/d1143d78-9c4d-41b5-b4d8-c0845ab4ceff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0x0c05d74c9cc116c08160a22f99f39b934a1ddf238f3d5c6a0ad8aa68527ed913","name":"Johann Sundermeier","registered_at":"2026-06-21T01:16:27Z","symbol":"NIM1771081","token_address":"0x90a3728594831c0571a5f936b30e433f8e1b5c04","type":"artist","uuid":"d1143d78-9c4d-41b5-b4d8-c0845ab4ceff"}
album: Was Bleibt
  type: MusicAlbum
  date published: 2023-08-25
album: Stuck
  type: MusicAlbum
  date published: 2023-10-27
album: Violet
  type: MusicAlbum
  date published: 2024-02-23