Plan B
type: MusicGroup
description: Plan B most commonly refers to: Contingency plan, a plan devised for an outcome other than in the expected plan. Plan B, a brand name of levonorgestrel, an emergency birth control drug Plan B may a
popularity: 3
followers: 21
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0409a9e83eefa9ababb73a3b51de21a2842fbb0052857f1a1e174a8e304dc6bd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/64334c7c-ee2c-4c6d-a7c6-b3568a6f0877.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/64334c7c-ee2c-4c6d-a7c6-b3568a6f0877.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/64334c7c-ee2c-4c6d-a7c6-b3568a6f0877
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0409a9e83eefa9ababb73a3b51de21a2842fbb0052857f1a1e174a8e304dc6bd","name":"Plan B","registered_at":"2026-06-17T00:28:29Z","symbol":"NIM1223851","token_address":"0xdaeb79ed2eb7c37446005c91616db6dcd1da5630","type":"artist","uuid":"64334c7c-ee2c-4c6d-a7c6-b3568a6f0877"}
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 0x0409a9e83eefa9ababb73a3b51de21a2842fbb0052857f1a1e174a8e304dc6bd. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/64334c7c-ee2c-4c6d-a7c6-b3568a6f0877.json and https://artists.proofprofile.net/proofs/artist/64334c7c-ee2c-4c6d-a7c6-b3568a6f0877.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x0409a9e83eefa9ababb73a3b51de21a2842fbb0052857f1a1e174a8e304dc6bd","name":"Plan B","registered_at":"2026-06-17T00:28:29Z","symbol":"NIM1223851","token_address":"0xdaeb79ed2eb7c37446005c91616db6dcd1da5630","type":"artist","uuid":"64334c7c-ee2c-4c6d-a7c6-b3568a6f0877"}
album: 2003-2010
  type: MusicAlbum
  date published: 2003-01-01