Håvard Rosenberg
type: MusicGroup
popularity: 2
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb9361fb25a02b280d08d8f94f8f88f371b2fc6bbc8373482c5b99150ad47dcf1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954593
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954593
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bdc545f5-220b-42dd-886c-7d7a0038c9eb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bdc545f5-220b-42dd-886c-7d7a0038c9eb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bdc545f5-220b-42dd-886c-7d7a0038c9eb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:46:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb9361fb25a02b280d08d8f94f8f88f371b2fc6bbc8373482c5b99150ad47dcf1","name":"Håvard Rosenberg","registered_at":"2026-06-20T17:56:20Z","symbol":"NIM1673376","token_address":"0x54ba9f5f210ea3c881d7a550fafcfe54de1942c7","type":"artist","uuid":"bdc545f5-220b-42dd-886c-7d7a0038c9eb"}
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 0xb9361fb25a02b280d08d8f94f8f88f371b2fc6bbc8373482c5b99150ad47dcf1. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bdc545f5-220b-42dd-886c-7d7a0038c9eb.json and https://artists.proofprofile.net/proofs/artist/bdc545f5-220b-42dd-886c-7d7a0038c9eb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:46:01Z
  text: {"copyright_id":"0xb9361fb25a02b280d08d8f94f8f88f371b2fc6bbc8373482c5b99150ad47dcf1","name":"Håvard Rosenberg","registered_at":"2026-06-20T17:56:20Z","symbol":"NIM1673376","token_address":"0x54ba9f5f210ea3c881d7a550fafcfe54de1942c7","type":"artist","uuid":"bdc545f5-220b-42dd-886c-7d7a0038c9eb"}