BeForU
type: MusicGroup
description: BeForU was a Japanese pop girl group that performed music primarily for the Bemani series of rhythm games. Their 2000 debut song "Dive" was particularly notable as being the first Japanese-language p
popularity: 13
followers: 2839
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc23a3b53c876daf49df26b00703b9c112f50421a4a788dd65a93c9795c53f1ea
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953817
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953817
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fef6a54d-985f-436c-898e-c45691fcce5c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fef6a54d-985f-436c-898e-c45691fcce5c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fef6a54d-985f-436c-898e-c45691fcce5c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T18:10:31Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23a3b53c876daf49df26b00703b9c112f50421a4a788dd65a93c9795c53f1ea. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fef6a54d-985f-436c-898e-c45691fcce5c.json and https://artists.proofprofile.net/proofs/artist/fef6a54d-985f-436c-898e-c45691fcce5c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T18:10:31Z
album: BeForU III～Breaking Into The Probability Changes～
  type: MusicAlbum
  date published: 2007-03-14
album: BeForU III〜Breaking Into The Probability Changes〜
  type: MusicAlbum
  date published: 2007-03-14
album: Yohanabi
  type: MusicAlbum
  date published: 2007-07-11
album: Yohanabi
  type: MusicAlbum
  date published: 2007-07-11