Leif Rygg
type: MusicGroup
description: Leif Rygg (3 May 1940 – 4 February 2018) was a Norwegian hardingfele fiddle player and folk music instructor. Rygg was born in Voss Municipality and learned traditional fiddle playing from Sigbjørn B
popularity: 3
followers: 201
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa22657fee4c9500d6916941b68f5b0c8d7f4050acc5ad15f0db2a4420e18257b
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/ec572974-8d1b-41b3-b712-5a8ee78b8120.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ec572974-8d1b-41b3-b712-5a8ee78b8120.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ec572974-8d1b-41b3-b712-5a8ee78b8120
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa22657fee4c9500d6916941b68f5b0c8d7f4050acc5ad15f0db2a4420e18257b","name":"Leif Rygg","registered_at":"2026-06-21T11:09:52Z","symbol":"NIM1908373","token_address":"0xb18fde1225257c1e3a15100c9099e3c41ed9a5e7","type":"artist","uuid":"ec572974-8d1b-41b3-b712-5a8ee78b8120"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22657fee4c9500d6916941b68f5b0c8d7f4050acc5ad15f0db2a4420e18257b. 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/ec572974-8d1b-41b3-b712-5a8ee78b8120.json and https://artists.proofprofile.net/proofs/artist/ec572974-8d1b-41b3-b712-5a8ee78b8120.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0xa22657fee4c9500d6916941b68f5b0c8d7f4050acc5ad15f0db2a4420e18257b","name":"Leif Rygg","registered_at":"2026-06-21T11:09:52Z","symbol":"NIM1908373","token_address":"0xb18fde1225257c1e3a15100c9099e3c41ed9a5e7","type":"artist","uuid":"ec572974-8d1b-41b3-b712-5a8ee78b8120"}
album: Bjølleslåtten
  type: MusicAlbum
  date published: 1993
album: Vossaspel
  type: MusicAlbum
  date published: 2017-01-14
album: Bygdatråen
  type: MusicAlbum
  date published: 2017-05-27
album: Bygdatråen
  type: MusicAlbum
  date published: 2017-05-27