Fredrik Fors
type: MusicGroup
description: Fredrik Fors (born 1973, in Borlänge) is a Swedish, classical music clarinetist.Booklet accompanying the Harmonia Mundi CD HMN911853. His album in the Juventus Les Nouveaux Musiciens series has been
popularity: 2
followers: 57
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x8537f84eb930d630bd6ef1de68dec2eda262744a1701d6f3cfc813b9fd598a15
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e0da017b-f3e3-443a-af34-aaaf438a57f9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e0da017b-f3e3-443a-af34-aaaf438a57f9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e0da017b-f3e3-443a-af34-aaaf438a57f9
additional property: OTSTimestamp
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  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8537f84eb930d630bd6ef1de68dec2eda262744a1701d6f3cfc813b9fd598a15","name":"Fredrik Fors","registered_at":"2026-06-21T06:48:47Z","symbol":"NIM1849420","token_address":"0x6d0f70b6778be05f86407248a00f3879e06aff65","type":"artist","uuid":"e0da017b-f3e3-443a-af34-aaaf438a57f9"}
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 0x8537f84eb930d630bd6ef1de68dec2eda262744a1701d6f3cfc813b9fd598a15. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e0da017b-f3e3-443a-af34-aaaf438a57f9.json and https://artists.proofprofile.net/proofs/artist/e0da017b-f3e3-443a-af34-aaaf438a57f9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
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album: Black Bird
  type: MusicAlbum
  date published: 2009-12-07
album: Black Bird - sort fugl
  type: MusicAlbum
  date published: 2009-12-07