Constanze Buttmann
type: MusicGroup
popularity: 34
followers: 279
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x68fdd372e306c6cd64d4c6539f841af4e799484b34e21dc32db2d701ee69ef04
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/57ad6ec5-13cb-4d25-95d3-295a3b3d0960.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/57ad6ec5-13cb-4d25-95d3-295a3b3d0960.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/57ad6ec5-13cb-4d25-95d3-295a3b3d0960
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x68fdd372e306c6cd64d4c6539f841af4e799484b34e21dc32db2d701ee69ef04","name":"Constanze Buttmann","registered_at":"2026-06-11T21:17:53Z","symbol":"NIM0114517","token_address":"0xb1badc05ed0ab337b44319fc919888913f13fe84","type":"artist","uuid":"57ad6ec5-13cb-4d25-95d3-295a3b3d0960"}
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 0x68fdd372e306c6cd64d4c6539f841af4e799484b34e21dc32db2d701ee69ef04. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/57ad6ec5-13cb-4d25-95d3-295a3b3d0960.json and https://artists.proofprofile.net/proofs/artist/57ad6ec5-13cb-4d25-95d3-295a3b3d0960.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x68fdd372e306c6cd64d4c6539f841af4e799484b34e21dc32db2d701ee69ef04","name":"Constanze Buttmann","registered_at":"2026-06-11T21:17:53Z","symbol":"NIM0114517","token_address":"0xb1badc05ed0ab337b44319fc919888913f13fe84","type":"artist","uuid":"57ad6ec5-13cb-4d25-95d3-295a3b3d0960"}
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  date published: 2020-08-07
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