K.K FLOW
type: MusicGroup
genre: j-rap
popularity: 5
followers: 81
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2cb8ebd9b965c63a9fde2d699ed0f0d1048c5247ac4c6a4e71c441d9eed2ad83
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954062
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954062
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/460abd47-2db2-4ac3-9412-91fb91dd8737.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/460abd47-2db2-4ac3-9412-91fb91dd8737.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/460abd47-2db2-4ac3-9412-91fb91dd8737
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:39:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2cb8ebd9b965c63a9fde2d699ed0f0d1048c5247ac4c6a4e71c441d9eed2ad83","name":"K.K FLOW","registered_at":"2026-06-16T13:57:29Z","symbol":"NIM1073301","token_address":"0x547bde90769dddb12337dba3ef2871b826acb230","type":"artist","uuid":"460abd47-2db2-4ac3-9412-91fb91dd8737"}
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 0x2cb8ebd9b965c63a9fde2d699ed0f0d1048c5247ac4c6a4e71c441d9eed2ad83. Chain 2 (Bitcoin): anchored in block 954062 (2026-06-17T07:39:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/460abd47-2db2-4ac3-9412-91fb91dd8737.json and https://artists.proofprofile.net/proofs/artist/460abd47-2db2-4ac3-9412-91fb91dd8737.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T07:39:10Z
  text: {"copyright_id":"0x2cb8ebd9b965c63a9fde2d699ed0f0d1048c5247ac4c6a4e71c441d9eed2ad83","name":"K.K FLOW","registered_at":"2026-06-16T13:57:29Z","symbol":"NIM1073301","token_address":"0x547bde90769dddb12337dba3ef2871b826acb230","type":"artist","uuid":"460abd47-2db2-4ac3-9412-91fb91dd8737"}
album: The SOULMATIC
  type: MusicAlbum
  date published: 2015-08-03
album: The SOULMATIC
  type: MusicAlbum
  date published: 2015-08-03
album: ILL APE
  type: MusicAlbum
  date published: 2016-02-24
album: ILL APE
  type: MusicAlbum
  date published: 2016-02-24
album: All I Need (remix) [feat. FunnyDaddy Q, Y.A.S & MUSH]
  type: MusicAlbum
  date published: 2019-07-19
album: All I Need (remix) [feat. FunnyDaddy Q, Y.A.S & MUSH]
  type: MusicAlbum
  date published: 2019-07-19
album: THIS IS
  type: MusicAlbum
  date published: 2019-11-18
album: THIS IS
  type: MusicAlbum
  date published: 2019-11-18
album: DIGGER
  type: MusicAlbum
  date published: 2020-11-28
album: DIGGER
  type: MusicAlbum
  date published: 2020-11-28
album: THE BOOTLEG TAPE 3
  type: MusicAlbum
  date published: 2023-03-29
album: THE BOOTLEG TAPE 3
  type: MusicAlbum
  date published: 2023-03-29
album: Good you better
  type: MusicAlbum
  date published: 2024-05-27
album: Good you better
  type: MusicAlbum
  date published: 2024-05-27
album: Jimichini (feat. CHOUJI)
  type: MusicAlbum
  date published: 2024-12-29
album: 地道に (feat. CHOUJI)
  type: MusicAlbum
  date published: 2024-12-29
  track: 地道に (feat. CHOUJI)
    type: MusicRecording
    duration: PT3M50S
    duration ms: 230988
    explicit: false
    by artist: K.K FLOW
    in album: 地道に (feat. CHOUJI)
      type: MusicAlbum
      date published: 2024-12-29
    genre: j-rap
    isrc code: TCJPD2401028
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T00:18:41+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4e8c4dbc47eb091a45c3ff1f4762cfaab29b8eb6906f3126d344d8ac59ea955e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959087
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959087
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPD2401028
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T02:05:55Z
    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 0x4e8c4dbc47eb091a45c3ff1f4762cfaab29b8eb6906f3126d344d8ac59ea955e. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/TCJPD2401028.
      date published: 2026-07-22T02:05:55Z
    audio: 地道に (feat. CHOUJI)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 173.997
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.521
      additional property: Energy
        type: PropertyValue
        value: 0.797
      additional property: Speechiness
        type: PropertyValue
        value: 0.123
      additional property: Acousticness
        type: PropertyValue
        value: 0.022
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.446
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.748
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.408
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: THE AUTHENTIC TAPE
  type: MusicAlbum
  date published: 2025-03-19
album: THE AUTHENTIC TAPE
  type: MusicAlbum
  date published: 2025-03-19
album: MAHU-BA
  type: MusicAlbum
  date published: 2025-09-30
album: 魔封波
  type: MusicAlbum
  date published: 2025-09-30
  track: 魔封波
    type: MusicRecording
    duration: PT4M11S
    duration ms: 251785
    explicit: false
    by artist: K.K FLOW
    in album: 魔封波
      type: MusicAlbum
      date published: 2025-09-30
    genre: j-rap
    isrc code: QT66J2549739
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T13:45:15+00:00
    additional property: CopyrightChainExplorerURL
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: 魔封波

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x6013a87aea5f756c41d5c98d3553a296dd1fa760deb25ac9fe1c433d728a377b

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956725

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956725

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT66J2549739

OTSTimestamp
type: PropertyValue
value: 2026-07-05T01:12:41Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6013a87aea5f756c41d5c98d3553a296dd1fa760deb25ac9fe1c433d728a377b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QT66J2549739.
date published: 2026-07-05T01:12:41Z

魔封波
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 83.995
additional property: Musical Key
  type: PropertyValue
  value: 1
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.703
additional property: Energy
  type: PropertyValue
  value: 0.76
additional property: Speechiness
  type: PropertyValue
  value: 0.04
additional property: Acousticness
  type: PropertyValue
  value: 0.49
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.123
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.49
additional property: Loudness (dB)
  type: PropertyValue
  value: -5.754
additional property: Key Name
  type: PropertyValue
  value: C#
additional property: Mode Name
  type: PropertyValue
  value: Major