Chapter Two
type: MusicGroup
description: Chapter Two refers to the second chapter in a book. Chapter Two, Chapter 2, or Chapter II may also refer to: Film Chapter Two (film), a 1979 adaptation of Neil Simon's play KGF: Chapter 2, 2022 In
popularity: 2
followers: 250
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe8cbfedaf93d5e2781896ca50800a81393e7a9b39706bf739317686454c02a94
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/50c5c982-273d-4e51-a9c8-55de5e0b40fe.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/50c5c982-273d-4e51-a9c8-55de5e0b40fe.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/50c5c982-273d-4e51-a9c8-55de5e0b40fe
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe8cbfedaf93d5e2781896ca50800a81393e7a9b39706bf739317686454c02a94","name":"Chapter Two","registered_at":"2026-06-16T17:43:28Z","symbol":"NIM1127225","token_address":"0x661d730a54ad20443953975b6ad5cbcde6406c47","type":"artist","uuid":"50c5c982-273d-4e51-a9c8-55de5e0b40fe"}
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 0xe8cbfedaf93d5e2781896ca50800a81393e7a9b39706bf739317686454c02a94. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/50c5c982-273d-4e51-a9c8-55de5e0b40fe.json and https://artists.proofprofile.net/proofs/artist/50c5c982-273d-4e51-a9c8-55de5e0b40fe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xe8cbfedaf93d5e2781896ca50800a81393e7a9b39706bf739317686454c02a94","name":"Chapter Two","registered_at":"2026-06-16T17:43:28Z","symbol":"NIM1127225","token_address":"0x661d730a54ad20443953975b6ad5cbcde6406c47","type":"artist","uuid":"50c5c982-273d-4e51-a9c8-55de5e0b40fe"}
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