Magnus Larsson
type: MusicGroup
description: Per Henrik Magnus Larsson (; born 25 March 1970) is a former professional tennis player from Sweden. Playing career Larsson turned professional in 1989 and won his first top-level singles title at Fl
popularity: 8
followers: 452
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0f8cc581a2e244939732ba19e13ff4706aa58425c6e9a4599bbeb454105e8de9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/61a13b36-3997-460f-8ddd-2221848ce329.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/61a13b36-3997-460f-8ddd-2221848ce329.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/61a13b36-3997-460f-8ddd-2221848ce329
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0f8cc581a2e244939732ba19e13ff4706aa58425c6e9a4599bbeb454105e8de9","name":"Magnus Larsson","registered_at":"2026-06-16T23:41:38Z","symbol":"NIM1212670","token_address":"0x673fea7337d86bda749d766d1a18f758b449eb2b","type":"artist","uuid":"61a13b36-3997-460f-8ddd-2221848ce329"}
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 0x0f8cc581a2e244939732ba19e13ff4706aa58425c6e9a4599bbeb454105e8de9. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/61a13b36-3997-460f-8ddd-2221848ce329.json and https://artists.proofprofile.net/proofs/artist/61a13b36-3997-460f-8ddd-2221848ce329.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x0f8cc581a2e244939732ba19e13ff4706aa58425c6e9a4599bbeb454105e8de9","name":"Magnus Larsson","registered_at":"2026-06-16T23:41:38Z","symbol":"NIM1212670","token_address":"0x673fea7337d86bda749d766d1a18f758b449eb2b","type":"artist","uuid":"61a13b36-3997-460f-8ddd-2221848ce329"}
album: Vanadis
  type: MusicAlbum
  date published: 2019-11-19
album: We're Leaving
  type: MusicAlbum
  date published: 2021-09-10
album: Svårt (Remix)
  type: MusicAlbum
  date published: 2022-11-18
album: Svårt (Remix)
  type: MusicAlbum
  date published: 2022-11-18
album: Go (Edit)
  type: MusicAlbum
  date published: 2023-02-17
album: Go
  type: MusicAlbum
  date published: 2023-02-17
album: Go
  type: MusicAlbum
  date published: 2023-02-17
album: Born Silly
  type: MusicAlbum
  date published: 2023-04-07
album: Born Silly
  type: MusicAlbum
  date published: 2023-06-09
album: Good Time 106
  type: MusicAlbum
  date published: 2023-11-17
album: If It's True
  type: MusicAlbum
  date published: 2024-10-04
album: Possibly Home
  type: MusicAlbum
  date published: 2024-10-25
album: Glad You Came
  type: MusicAlbum
  date published: 2024-11-15