Mari Welde
type: MusicGroup
popularity: 16
followers: 34
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xec0365352ab83bc2b2ca593524ad2b575fe2eaab20f6067c02b38bc3f2c23d5a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953786
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953786
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d8a514f6-47f5-41c4-83a0-53c8d50a836f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d8a514f6-47f5-41c4-83a0-53c8d50a836f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d8a514f6-47f5-41c4-83a0-53c8d50a836f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T12:56:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xec0365352ab83bc2b2ca593524ad2b575fe2eaab20f6067c02b38bc3f2c23d5a","name":"Mari Welde","registered_at":"2026-06-15T03:21:28Z","symbol":"NIM0666118","token_address":"0xe505feee5b8a684bbf4dda7c855eadf658e1ea6d","type":"artist","uuid":"d8a514f6-47f5-41c4-83a0-53c8d50a836f"}
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 0xec0365352ab83bc2b2ca593524ad2b575fe2eaab20f6067c02b38bc3f2c23d5a. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d8a514f6-47f5-41c4-83a0-53c8d50a836f.json and https://artists.proofprofile.net/proofs/artist/d8a514f6-47f5-41c4-83a0-53c8d50a836f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T12:56:12Z
  text: {"copyright_id":"0xec0365352ab83bc2b2ca593524ad2b575fe2eaab20f6067c02b38bc3f2c23d5a","name":"Mari Welde","registered_at":"2026-06-15T03:21:28Z","symbol":"NIM0666118","token_address":"0xe505feee5b8a684bbf4dda7c855eadf658e1ea6d","type":"artist","uuid":"d8a514f6-47f5-41c4-83a0-53c8d50a836f"}
album: Lys i mørket (feat. Aun Gold)
  type: MusicAlbum
  date published: 2016-12-14