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: 18
followers: 12750
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfcac0793d64996627f8b5f85f30950714ae16be7f6309d28b5342e83e2b44dd2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953741
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953741
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/99731d0c-139c-4935-83f0-f0eff6647496.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/99731d0c-139c-4935-83f0-f0eff6647496.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/99731d0c-139c-4935-83f0-f0eff6647496
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:44:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfcac0793d64996627f8b5f85f30950714ae16be7f6309d28b5342e83e2b44dd2","name":"Plan B","registered_at":"2026-06-14T20:40:51Z","symbol":"NIM0570443","token_address":"0x322bb19f3118e970ab60ed531ba064aa2195e367","type":"artist","uuid":"99731d0c-139c-4935-83f0-f0eff6647496"}
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 0xfcac0793d64996627f8b5f85f30950714ae16be7f6309d28b5342e83e2b44dd2. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99731d0c-139c-4935-83f0-f0eff6647496.json and https://artists.proofprofile.net/proofs/artist/99731d0c-139c-4935-83f0-f0eff6647496.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T09:50:11Z
  text: {"copyright_id":"0xfcac0793d64996627f8b5f85f30950714ae16be7f6309d28b5342e83e2b44dd2","name":"Plan B","registered_at":"2026-06-14T20:40:51Z","symbol":"NIM0570443","token_address":"0x322bb19f3118e970ab60ed531ba064aa2195e367","type":"artist","uuid":"99731d0c-139c-4935-83f0-f0eff6647496"}
album: Čarovniki
  type: MusicAlbum
  date published: 2003
album: Contingency Broadcast System
  type: MusicAlbum
  date published: 2005-10-03
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  type: MusicAlbum
  date published: 2010-09-11
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  type: MusicAlbum
  date published: 2012-09-01
album: Paizei Gia Mas (Kalokairi Mou)
  type: MusicAlbum
  date published: 2014-07-20