Johan Svedberg
type: MusicGroup
genre: swedish ballads
description: Johan Svedberg (born February 14, 1980) is a Swedish former professional ice hockey defenceman who played in the Swedish Hockey League for Timrå IK and Leksands IF. Playing career On April 2, 2004,
popularity: 2
followers: 148
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe321a9b329d296ba779e611f0f9278dd5975acf3be727e7503ccc1611a74e358
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f0bbc973-c299-402d-8362-18d51b5d3a4f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f0bbc973-c299-402d-8362-18d51b5d3a4f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f0bbc973-c299-402d-8362-18d51b5d3a4f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe321a9b329d296ba779e611f0f9278dd5975acf3be727e7503ccc1611a74e358","name":"Johan Svedberg","registered_at":"2026-06-21T13:25:03Z","symbol":"NIM1934728","token_address":"0xda87df29caa8001bb63cd217b3b59a57c5518026","type":"artist","uuid":"f0bbc973-c299-402d-8362-18d51b5d3a4f"}
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 0xe321a9b329d296ba779e611f0f9278dd5975acf3be727e7503ccc1611a74e358. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f0bbc973-c299-402d-8362-18d51b5d3a4f.json and https://artists.proofprofile.net/proofs/artist/f0bbc973-c299-402d-8362-18d51b5d3a4f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0xe321a9b329d296ba779e611f0f9278dd5975acf3be727e7503ccc1611a74e358","name":"Johan Svedberg","registered_at":"2026-06-21T13:25:03Z","symbol":"NIM1934728","token_address":"0xda87df29caa8001bb63cd217b3b59a57c5518026","type":"artist","uuid":"f0bbc973-c299-402d-8362-18d51b5d3a4f"}
album: Nojjvisor
  type: MusicAlbum
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  type: MusicAlbum
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album: Live från Hjärtat i Sveriges trädgård
  type: MusicAlbum
  date published: 2010-06-04
album: Live Från Hjärtat I Sveriges Trädgård
  type: MusicAlbum
  date published: 2010-06-04
album: Live Från Hjärtat I Sveriges Trädgård
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album: Skärmtider
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  date published: 2018-06-17
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  type: MusicAlbum
  date published: 2020-04-10
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  type: MusicAlbum
  date published: 2020-05-08
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  date published: 2020-11-06
album: Bråttom (akustisk version)
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album: Bråttom (akustisk version)
  type: MusicAlbum
  date published: 2020-11-06
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  type: MusicAlbum
  date published: 2020-11-13