Agneta Höglund
type: MusicGroup
popularity: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3d7987198fa3ab4e23ba35a4dacaf4bfbc9106044d7d8046bed2c08ab076ccae
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954650
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954650
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d9ccbe1e-9601-49eb-bb8b-66ad93f29ea0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d9ccbe1e-9601-49eb-bb8b-66ad93f29ea0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d9ccbe1e-9601-49eb-bb8b-66ad93f29ea0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:51:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3d7987198fa3ab4e23ba35a4dacaf4bfbc9106044d7d8046bed2c08ab076ccae","name":"Agneta Höglund","registered_at":"2026-06-21T03:56:29Z","symbol":"NIM1812329","token_address":"0xee59aa9f7f1a44e88895d3506bdbe37dc3c641d2","type":"artist","uuid":"d9ccbe1e-9601-49eb-bb8b-66ad93f29ea0"}
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 0x3d7987198fa3ab4e23ba35a4dacaf4bfbc9106044d7d8046bed2c08ab076ccae. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9ccbe1e-9601-49eb-bb8b-66ad93f29ea0.json and https://artists.proofprofile.net/proofs/artist/d9ccbe1e-9601-49eb-bb8b-66ad93f29ea0.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T04:51:12Z
  text: {"copyright_id":"0x3d7987198fa3ab4e23ba35a4dacaf4bfbc9106044d7d8046bed2c08ab076ccae","name":"Agneta Höglund","registered_at":"2026-06-21T03:56:29Z","symbol":"NIM1812329","token_address":"0xee59aa9f7f1a44e88895d3506bdbe37dc3c641d2","type":"artist","uuid":"d9ccbe1e-9601-49eb-bb8b-66ad93f29ea0"}