Anne Grethen
type: MusicGroup
genre: neoclassical
popularity: 3
followers: 6
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x823c69c65d8bd2698ae4c47e1c464f10ab8959181822cc01f50da638e9625634
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954002
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954002
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/323aa3d4-ba8b-43f4-ace3-55522a965519.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/323aa3d4-ba8b-43f4-ace3-55522a965519.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/323aa3d4-ba8b-43f4-ace3-55522a965519
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:47:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x823c69c65d8bd2698ae4c47e1c464f10ab8959181822cc01f50da638e9625634","name":"Anne Grethen","registered_at":"2026-06-16T07:02:23Z","symbol":"NIM0974247","token_address":"0x086183edf8e644dd0dac6cc6d03cb7aa2d79092a","type":"artist","uuid":"323aa3d4-ba8b-43f4-ace3-55522a965519"}
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 0x823c69c65d8bd2698ae4c47e1c464f10ab8959181822cc01f50da638e9625634. Chain 2 (Bitcoin): anchored in block 954002 (2026-06-16T20:47:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/323aa3d4-ba8b-43f4-ace3-55522a965519.json and https://artists.proofprofile.net/proofs/artist/323aa3d4-ba8b-43f4-ace3-55522a965519.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:47:12Z
  text: {"copyright_id":"0x823c69c65d8bd2698ae4c47e1c464f10ab8959181822cc01f50da638e9625634","name":"Anne Grethen","registered_at":"2026-06-16T07:02:23Z","symbol":"NIM0974247","token_address":"0x086183edf8e644dd0dac6cc6d03cb7aa2d79092a","type":"artist","uuid":"323aa3d4-ba8b-43f4-ace3-55522a965519"}