CASTLE
type: MusicGroup
genre: indie folk
description: A castle is a type of fortified structure built during the Middle Ages predominantly by the nobility or royalty and by military orders. Scholars usually consider a castle to be the private fortified r
popularity: 8
followers: 9
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9fd2bf1b27f30e1cf5f71aeae49a64534f0686ebf259a9d840642499a0c5df9e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e940e84c-ca3b-4d82-b8c5-087a86d5aeee.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e940e84c-ca3b-4d82-b8c5-087a86d5aeee.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e940e84c-ca3b-4d82-b8c5-087a86d5aeee
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
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 0x9fd2bf1b27f30e1cf5f71aeae49a64534f0686ebf259a9d840642499a0c5df9e. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e940e84c-ca3b-4d82-b8c5-087a86d5aeee.json and https://artists.proofprofile.net/proofs/artist/e940e84c-ca3b-4d82-b8c5-087a86d5aeee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
album: The Last Thing I Do
  type: MusicAlbum
  date published: 2025-02-28
album: Lost in a Moment
  type: MusicAlbum
  date published: 2025-07-21