Johanna Nystrom
type: MusicGroup
genre: swedish ballads
popularity: 3
followers: 33
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x571e9380195d2b2eaa7347248ae897ed76e5fa3011d0ffdc7d8a0083a08f7ed0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954025
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954025
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3846962d-a2e7-4a3c-8d58-4ff177fe308d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3846962d-a2e7-4a3c-8d58-4ff177fe308d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3846962d-a2e7-4a3c-8d58-4ff177fe308d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T00:32:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x571e9380195d2b2eaa7347248ae897ed76e5fa3011d0ffdc7d8a0083a08f7ed0","name":"Johanna Nystrom","registered_at":"2026-06-16T09:07:50Z","symbol":"NIM1004207","token_address":"0x7fede44329e1ab57eb7a0e56871a53ae12e95a28","type":"artist","uuid":"3846962d-a2e7-4a3c-8d58-4ff177fe308d"}
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 0x571e9380195d2b2eaa7347248ae897ed76e5fa3011d0ffdc7d8a0083a08f7ed0. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3846962d-a2e7-4a3c-8d58-4ff177fe308d.json and https://artists.proofprofile.net/proofs/artist/3846962d-a2e7-4a3c-8d58-4ff177fe308d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x571e9380195d2b2eaa7347248ae897ed76e5fa3011d0ffdc7d8a0083a08f7ed0","name":"Johanna Nystrom","registered_at":"2026-06-16T09:07:50Z","symbol":"NIM1004207","token_address":"0x7fede44329e1ab57eb7a0e56871a53ae12e95a28","type":"artist","uuid":"3846962d-a2e7-4a3c-8d58-4ff177fe308d"}