Von Arfve
type: MusicGroup
popularity: 2
followers: 160
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3d5b206c461ba63ba93a3802ee771ef5ce4ed4d90238d1cf1efc38bd23b954ef
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9fe804cc-57d9-43c8-b034-5bb588c55039.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9fe804cc-57d9-43c8-b034-5bb588c55039.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9fe804cc-57d9-43c8-b034-5bb588c55039
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3d5b206c461ba63ba93a3802ee771ef5ce4ed4d90238d1cf1efc38bd23b954ef","name":"Von Arfve","registered_at":"2026-06-20T05:39:50Z","symbol":"NIM1527930","token_address":"0xb013758d19c18963c648cbd281f22d34fbf37003","type":"artist","uuid":"9fe804cc-57d9-43c8-b034-5bb588c55039"}
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 0x3d5b206c461ba63ba93a3802ee771ef5ce4ed4d90238d1cf1efc38bd23b954ef. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9fe804cc-57d9-43c8-b034-5bb588c55039.json and https://artists.proofprofile.net/proofs/artist/9fe804cc-57d9-43c8-b034-5bb588c55039.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0x3d5b206c461ba63ba93a3802ee771ef5ce4ed4d90238d1cf1efc38bd23b954ef","name":"Von Arfve","registered_at":"2026-06-20T05:39:50Z","symbol":"NIM1527930","token_address":"0xb013758d19c18963c648cbd281f22d34fbf37003","type":"artist","uuid":"9fe804cc-57d9-43c8-b034-5bb588c55039"}
album: Brynolf & Ljung
  type: MusicAlbum
  date published: 2019-10-25
album: Awtoditakt
  type: MusicAlbum
  date published: 2019-11-22
album: Mamma & Pappa
  type: MusicAlbum
  date published: 2019-12-27
album: L’Amour absolu
  type: MusicAlbum
  date published: 2020-01-31
album: Skärpning på alla plan
  type: MusicAlbum
  date published: 2020-03-27
album: Skärpning på alla plan
  type: MusicAlbum
  date published: 2020-03-27