The Passport
type: MusicGroup
description: REDIRECT Passport (disambiguation)
popularity: 2
followers: 154
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe2b7a7abab38dfb85520955b747d53853199596b9048169a3b3cb2da989d03fa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb94c843-8286-4e19-88c8-778ab1a11f21.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb94c843-8286-4e19-88c8-778ab1a11f21.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fb94c843-8286-4e19-88c8-778ab1a11f21
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe2b7a7abab38dfb85520955b747d53853199596b9048169a3b3cb2da989d03fa","name":"The Passport","registered_at":"2026-06-21T17:27:33Z","symbol":"NIM1985677","token_address":"0x1e409b37ead4caeaacffb3f2a0503bdde8e4bd39","type":"artist","uuid":"fb94c843-8286-4e19-88c8-778ab1a11f21"}
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 0xe2b7a7abab38dfb85520955b747d53853199596b9048169a3b3cb2da989d03fa. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb94c843-8286-4e19-88c8-778ab1a11f21.json and https://artists.proofprofile.net/proofs/artist/fb94c843-8286-4e19-88c8-778ab1a11f21.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0xe2b7a7abab38dfb85520955b747d53853199596b9048169a3b3cb2da989d03fa","name":"The Passport","registered_at":"2026-06-21T17:27:33Z","symbol":"NIM1985677","token_address":"0x1e409b37ead4caeaacffb3f2a0503bdde8e4bd39","type":"artist","uuid":"fb94c843-8286-4e19-88c8-778ab1a11f21"}
album: Customs
  type: MusicAlbum
  date published: 2010-12-06