F.CUZ
type: MusicGroup
genre: k-pop
description: F.Cuz (, "Focus"), is a South Korean boy band that used to be managed by Tunes-Will Entertainment,Newsway Korea / 남성 5인조 아이돌그룹 포커즈, 새 소속사에서 새로운 출발! . (March 13, 2014). Retrieved on March 21, 2014. and
popularity: 14
followers: 33594
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7910fe3d0626efa61f6423a9d39a0b5272c5cd12356458d72115c966cf35b40b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953602
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953602
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0f509e74-1bb0-4087-8a87-74a73b9b7874.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0f509e74-1bb0-4087-8a87-74a73b9b7874.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0f509e74-1bb0-4087-8a87-74a73b9b7874
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T06:58:10Z
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 0x7910fe3d0626efa61f6423a9d39a0b5272c5cd12356458d72115c966cf35b40b. Chain 2 (Bitcoin): anchored in block 953602 (2026-06-14T06:58:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f509e74-1bb0-4087-8a87-74a73b9b7874.json and https://artists.proofprofile.net/proofs/artist/0f509e74-1bb0-4087-8a87-74a73b9b7874.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T06:58:10Z
album: No One
  type: MusicAlbum
  date published: 2010-03-11
album: NO ONE
  type: MusicAlbum
  date published: 2010-05-14
album: Gorgeous
  type: MusicAlbum
  date published: 2010-11-18
album: 2ND迷你專輯Gorgeous
  type: MusicAlbum
  date published: 2010-12-09
album: Friends Graduation Collection
  type: MusicAlbum
  date published: 2011-06-01
album: Friends Graduation Collection
  type: MusicAlbum
  date published: 2011-12-02
  track: Friends Graduation
    type: MusicRecording
    duration: PT3M31S
    duration ms: 211154
    explicit: false
    by artist: F.CUZ
    in album: Friends Graduation Collection
      type: MusicAlbum
      date published: 2011-12-02
    genre: k-pop
    isrc code: SEYOK1128236
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T06:38:11+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x73d4d766c2f9db3cd005d972e939ec56e77da30fe3637e11a656142db2a0aa35
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958689
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958689
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEYOK1128236
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T07:11:11Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x73d4d766c2f9db3cd005d972e939ec56e77da30fe3637e11a656142db2a0aa35. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEYOK1128236.
      date published: 2026-07-19T07:11:11Z
    audio: Friends Graduation
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 123.989
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.785
      additional property: Energy
        type: PropertyValue
        value: 0.926
      additional property: Speechiness
        type: PropertyValue
        value: 0.138
      additional property: Acousticness
        type: PropertyValue
        value: 0.149
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.116
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.848
      additional property: Loudness (dB)
        type: PropertyValue
        value: -1.178
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: For Century Ultimate Zest
  type: MusicAlbum
  date published: 2012-04-25
album: For Century Ultimate
  type: MusicAlbum
  date published: 2012-04-27
album: 꿈꾸는 I
  type: MusicAlbum
  date published: 2012-08-07
album: ONE LOVE
  type: MusicAlbum
  date published: 2014-03-27
album: Bargaining for love
  type: MusicAlbum
  date published: 2014-09-17
album: もう一度だけ～Remind～
  type: MusicAlbum
  date published: 2014-12-17
album: Don’t touch
  type: MusicAlbum
  date published: 2015-07-21
album: two of us (Type B)
  type: MusicAlbum
  date published: 2015-07-22
album: two of us (Type A)
  type: MusicAlbum
  date published: 2015-07-22
album: Forever (Type A)
  type: MusicAlbum
  date published: 2016-01-27
album: Forever (Type B)
  type: MusicAlbum
  date published: 2016-01-27
album: Wonder World (Type A)
  type: MusicAlbum
  date published: 2016-06-22
album: Wonder World (Type B)
  type: MusicAlbum
  date published: 2016-06-22
album: 예뻐
  type: MusicAlbum
  date published: 2017-01-20
album: 맨발 (Feat. 한겨울) [from 'Ruby Ruby Love' (Original Soundtrack), Pt.1]
  type: MusicAlbum
  date published: 2017-01-24
album: 맨발 (feat. 한겨울) (from 'Ruby Ruby Love' (Original Soundtrack), Pt.1)
  type: MusicAlbum
  date published: 2017-01-24
album: Love or Truth
  type: MusicAlbum
  date published: 2017-02-20
album: shine
  type: MusicAlbum
  date published: 2020-07-06
album: Summer days
  type: MusicAlbum
  date published: 2020-08-04
album: Snowing in my heart
  type: MusicAlbum
  date published: 2020-12-29
album: Summer Days (2023)
album: Shine (2023)
album: Beautiful Girl (2023)
album: Dear. Me

Summer Days (2023)
type: MusicAlbum
date published: 2023-07-29

Shine (2023)
type: MusicAlbum
date published: 2023-09-29

Beautiful Girl (2023)
type: MusicAlbum
date published: 2023-10-26

Dear. Me
type: MusicAlbum
date published: 2024-01-25