The Purple Piano Project
type: MusicGroup
description: "The Purple Piano Project" is the premiere episode of the third season of the American musical television series Glee, and the forty-fifth overall. The episode was written by series co-creator Brad Fa
popularity: 3
followers: 27
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x0439db64f58d8ab25ad5dd68ab4b7301b3fe90f1672a7d20f0eb69b7379926ad
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954124
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b60fd78-1249-4b6c-92e2-6177dfef274f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b60fd78-1249-4b6c-92e2-6177dfef274f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7b60fd78-1249-4b6c-92e2-6177dfef274f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T18:22:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0439db64f58d8ab25ad5dd68ab4b7301b3fe90f1672a7d20f0eb69b7379926ad","name":"The Purple Piano Project","registered_at":"2026-06-17T08:40:40Z","symbol":"NIM1341259","token_address":"0xe683a47483aa3f7dd8ea4bdf55687c2a2401b893","type":"artist","uuid":"7b60fd78-1249-4b6c-92e2-6177dfef274f"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0439db64f58d8ab25ad5dd68ab4b7301b3fe90f1672a7d20f0eb69b7379926ad. Chain 2 (Bitcoin): anchored in block 954124 (2026-06-17T18:22:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b60fd78-1249-4b6c-92e2-6177dfef274f.json and https://artists.proofprofile.net/proofs/artist/7b60fd78-1249-4b6c-92e2-6177dfef274f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T18:22:18Z
  text: {"copyright_id":"0x0439db64f58d8ab25ad5dd68ab4b7301b3fe90f1672a7d20f0eb69b7379926ad","name":"The Purple Piano Project","registered_at":"2026-06-17T08:40:40Z","symbol":"NIM1341259","token_address":"0xe683a47483aa3f7dd8ea4bdf55687c2a2401b893","type":"artist","uuid":"7b60fd78-1249-4b6c-92e2-6177dfef274f"}
album: Piano Bar: Open
  type: MusicAlbum
  date published: 2017-01-29