Oskar Strömberg
type: MusicGroup
genre: indie folk
popularity: 2
followers: 160
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaf7f70f7b1cb6eb84d28a97f2805b6a520074e0aa36b13315c4a39339f4618e9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954573
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954573
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b569f905-ebc3-41f1-b980-91177ed156cd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b569f905-ebc3-41f1-b980-91177ed156cd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b569f905-ebc3-41f1-b980-91177ed156cd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T15:45:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xaf7f70f7b1cb6eb84d28a97f2805b6a520074e0aa36b13315c4a39339f4618e9","name":"Oskar Strömberg","registered_at":"2026-06-20T14:13:58Z","symbol":"NIM1631471","token_address":"0xe82f3bdecd9bade5117ab414ee631cc5a9dbc430","type":"artist","uuid":"b569f905-ebc3-41f1-b980-91177ed156cd"}
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 0xaf7f70f7b1cb6eb84d28a97f2805b6a520074e0aa36b13315c4a39339f4618e9. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b569f905-ebc3-41f1-b980-91177ed156cd.json and https://artists.proofprofile.net/proofs/artist/b569f905-ebc3-41f1-b980-91177ed156cd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T15:45:29Z
  text: {"copyright_id":"0xaf7f70f7b1cb6eb84d28a97f2805b6a520074e0aa36b13315c4a39339f4618e9","name":"Oskar Strömberg","registered_at":"2026-06-20T14:13:58Z","symbol":"NIM1631471","token_address":"0xe82f3bdecd9bade5117ab414ee631cc5a9dbc430","type":"artist","uuid":"b569f905-ebc3-41f1-b980-91177ed156cd"}
album: Until the Morning Comes
  type: MusicAlbum
  date published: 2019-10-17
album: Until the Morning Comes
  type: MusicAlbum
  date published: 2019-10-17
album: Until the Morning Comes
  type: MusicAlbum
  date published: 2019-10-17
album: Ghosts
  type: MusicAlbum
  date published: 2020-02-21
album: Ghosts
  type: MusicAlbum
  date published: 2020-02-21
album: First Day of Spring
  type: MusicAlbum
  date published: 2020-04-12
album: First Day of Spring
  type: MusicAlbum
  date published: 2020-04-12
album: First Day of Spring
  type: MusicAlbum
  date published: 2020-04-12
album: Inhibitions
  type: MusicAlbum
  date published: 2020-09-05
album: Inhibitions
  type: MusicAlbum
  date published: 2020-09-05
album: The Promised Land
  type: MusicAlbum
  date published: 2022-01-20
album: The Promised Land
  type: MusicAlbum
  date published: 2022-01-20