Meg Duffy
type: MusicGroup
description: Meg Duffy is an American musician and guitarist who has played as a studio musician on records by the War on Drugs, Weyes Blood, Perfume Genius, Sasami, and William Tyler, among many others. Duffy was
popularity: 4
followers: 55
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x73f282e6b757379b68147cd31a6ae348d61cd644744a54dfba1fa406df7ee946
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d8310ba7-d408-4c9d-9bc3-9bf676c55b2d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d8310ba7-d408-4c9d-9bc3-9bf676c55b2d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d8310ba7-d408-4c9d-9bc3-9bf676c55b2d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x73f282e6b757379b68147cd31a6ae348d61cd644744a54dfba1fa406df7ee946","name":"Meg Duffy","registered_at":"2026-06-21T03:48:51Z","symbol":"NIM1806716","token_address":"0x76e6f80773ae1b2984ab6f40b09ac305543bdcd1","type":"artist","uuid":"d8310ba7-d408-4c9d-9bc3-9bf676c55b2d"}
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 0x73f282e6b757379b68147cd31a6ae348d61cd644744a54dfba1fa406df7ee946. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d8310ba7-d408-4c9d-9bc3-9bf676c55b2d.json and https://artists.proofprofile.net/proofs/artist/d8310ba7-d408-4c9d-9bc3-9bf676c55b2d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x73f282e6b757379b68147cd31a6ae348d61cd644744a54dfba1fa406df7ee946","name":"Meg Duffy","registered_at":"2026-06-21T03:48:51Z","symbol":"NIM1806716","token_address":"0x76e6f80773ae1b2984ab6f40b09ac305543bdcd1","type":"artist","uuid":"d8310ba7-d408-4c9d-9bc3-9bf676c55b2d"}