Johann O:son Braa
type: MusicGroup
genre: pianissimo
popularity: 28
followers: 459
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5fa0a28186ae57de920139caff10a975426cff67633e77a59b8f6032affe4de8
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/698f1147-95df-4818-8a31-92a4cc777432.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/698f1147-95df-4818-8a31-92a4cc777432.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/698f1147-95df-4818-8a31-92a4cc777432
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5fa0a28186ae57de920139caff10a975426cff67633e77a59b8f6032affe4de8","name":"Johann O:son Braa","registered_at":"2026-06-11T23:35:28Z","symbol":"NIM0138293","token_address":"0xa80d78cd8a1d4529a80dff172e4b2f77821185f2","type":"artist","uuid":"698f1147-95df-4818-8a31-92a4cc777432"}
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 0x5fa0a28186ae57de920139caff10a975426cff67633e77a59b8f6032affe4de8. 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/698f1147-95df-4818-8a31-92a4cc777432.json and https://artists.proofprofile.net/proofs/artist/698f1147-95df-4818-8a31-92a4cc777432.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x5fa0a28186ae57de920139caff10a975426cff67633e77a59b8f6032affe4de8","name":"Johann O:son Braa","registered_at":"2026-06-11T23:35:28Z","symbol":"NIM0138293","token_address":"0xa80d78cd8a1d4529a80dff172e4b2f77821185f2","type":"artist","uuid":"698f1147-95df-4818-8a31-92a4cc777432"}
album: Elysien
  type: MusicAlbum
  date published: 2024-05-22
album: Light Waves
  type: MusicAlbum
  date published: 2023-06-16