Mattias Strömberg
type: MusicGroup
genre: arena rock
popularity: 5
followers: 337
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbac8806a70dd85e8d9f24679509b7c70b910ebb0442543b1a9d83f05d47f2b2c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/90b3109e-0c5e-4469-a0c7-20455b5de25a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/90b3109e-0c5e-4469-a0c7-20455b5de25a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/90b3109e-0c5e-4469-a0c7-20455b5de25a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbac8806a70dd85e8d9f24679509b7c70b910ebb0442543b1a9d83f05d47f2b2c","name":"Mattias Strömberg","registered_at":"2026-06-17T16:10:02Z","symbol":"NIM1448393","token_address":"0xe1611b68d01deacc803f4b79ea1f3af7b74aa493","type":"artist","uuid":"90b3109e-0c5e-4469-a0c7-20455b5de25a"}
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 0xbac8806a70dd85e8d9f24679509b7c70b910ebb0442543b1a9d83f05d47f2b2c. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90b3109e-0c5e-4469-a0c7-20455b5de25a.json and https://artists.proofprofile.net/proofs/artist/90b3109e-0c5e-4469-a0c7-20455b5de25a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xbac8806a70dd85e8d9f24679509b7c70b910ebb0442543b1a9d83f05d47f2b2c","name":"Mattias Strömberg","registered_at":"2026-06-17T16:10:02Z","symbol":"NIM1448393","token_address":"0xe1611b68d01deacc803f4b79ea1f3af7b74aa493","type":"artist","uuid":"90b3109e-0c5e-4469-a0c7-20455b5de25a"}
album: Change
  type: MusicAlbum
  date published: 2014-09-22
album: Bleeding
  type: MusicAlbum
  date published: 2015-11-01
album: Unbreakable
  type: MusicAlbum
  date published: 2021-07-14
album: What You Need
  type: MusicAlbum
  date published: 2021-07-17
album: Basement Sessions
  type: MusicAlbum
  date published: 2021-07-27
album: Vita & Blå
  type: MusicAlbum
  date published: 2022-04-13
album: Live & Learn
  type: MusicAlbum
  date published: 2022-07-10
album: Whatever (Acoustic Version)
  type: MusicAlbum
  date published: 2023-05-31
album: More Than Words
  type: MusicAlbum
  date published: 2023-08-01
album: Uptown
  type: MusicAlbum
  date published: 2023-10-28
album: The End - Live at Växjö Theatre (Live)
  type: MusicAlbum
  date published: 2024-04-01
album: Bleeding (Live)
  type: MusicAlbum
  date published: 2024-07-01
album: Uptown
  type: MusicAlbum
  date published: 2024-07-18
album: Live & Learn
  type: MusicAlbum
  date published: 2024-07-18
album: The Five
  type: MusicAlbum
  date published: 2024-08-06
album: Hidden Beyond
  type: MusicAlbum
  date published: 2024-08-07
album: Slow Down
  type: MusicAlbum
  date published: 2024-10-23
album: 5
  type: MusicAlbum
  date published: 2025-10-03