Mop of Head
type: MusicGroup
genre: japanese indie
genre: j-dance
popularity: 21
followers: 3125
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3137de4bbabf521d5be3f4d4c21b3b071106da4f158a2d669ad3d96ab81556c5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c8603c53-d7cf-4ef0-a84c-c5e848090210.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c8603c53-d7cf-4ef0-a84c-c5e848090210.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c8603c53-d7cf-4ef0-a84c-c5e848090210
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3137de4bbabf521d5be3f4d4c21b3b071106da4f158a2d669ad3d96ab81556c5","name":"Mop of Head","registered_at":"2026-06-12T09:38:10Z","symbol":"NIM0258448","token_address":"0x48fbc682ad1949d145d704bc335f0dba94d59b07","type":"artist","uuid":"c8603c53-d7cf-4ef0-a84c-c5e848090210"}
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 0x3137de4bbabf521d5be3f4d4c21b3b071106da4f158a2d669ad3d96ab81556c5. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8603c53-d7cf-4ef0-a84c-c5e848090210.json and https://artists.proofprofile.net/proofs/artist/c8603c53-d7cf-4ef0-a84c-c5e848090210.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x3137de4bbabf521d5be3f4d4c21b3b071106da4f158a2d669ad3d96ab81556c5","name":"Mop of Head","registered_at":"2026-06-12T09:38:10Z","symbol":"NIM0258448","token_address":"0x48fbc682ad1949d145d704bc335f0dba94d59b07","type":"artist","uuid":"c8603c53-d7cf-4ef0-a84c-c5e848090210"}
album: Vitalize
  type: MusicAlbum
  date published: 2015-07-15
album: Vitalize
  type: MusicAlbum
  date published: 2015-07-15
album: and Touch You
  type: MusicAlbum
  date published: 2016-07-20
  track: Do It (feat. UCARY & THE VALENTINE)
    type: MusicRecording
    duration: PT3M43S
    duration ms: 223266
    explicit: false
    by artist: Mop of Head
    in album: and Touch You
      type: MusicAlbum
      date published: 2016-07-20
    genre: japanese indie
    genre: j-dance
    isrc code: JPG770709780
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T12:01:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x57312af39dae684236f105cb165801fe1d0925be8dc6ce941f91d31d91d838ea
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956551
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956551
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG770709780
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T21:18:05Z
    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 0x57312af39dae684236f105cb165801fe1d0925be8dc6ce941f91d31d91d838ea. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPG770709780.
      date published: 2026-07-03T21:18:05Z
    audio: Do It (feat. UCARY & THE VALENTINE)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.04
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.58
      additional property: Energy
        type: PropertyValue
        value: 0.932
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.048
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.11
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.474
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.925
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: and Touch You
  type: MusicAlbum
  date published: 2016-07-20
  track: Wonder Boy (feat. 渋谷龍太)
    type: MusicRecording
    duration: PT4M12S
    duration ms: 252400
    explicit: false
    by artist: Mop of Head
    in album: and Touch You
      type: MusicAlbum
      date published: 2016-07-20
    genre: japanese indie
    genre: j-dance
    isrc code: JPG770709784
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T23:23:55+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x625a0334a0b6abdd3ee2064838d483a46f35f298586efeb8a9da40f161d0b309
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958796
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958796
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG770709784
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T00:01:46Z
    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 0x625a0334a0b6abdd3ee2064838d483a46f35f298586efeb8a9da40f161d0b309. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/JPG770709784.
      date published: 2026-07-20T00:01:46Z
    audio: Wonder Boy (feat. 渋谷龍太)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.998
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.599
      additional property: Energy
        type: PropertyValue
        value: 0.851
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Aspiration
album: Health
album: maverick
album: Shadow

Acousticness
type: PropertyValue
value: 0.015

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.251

Valence (Positivity)
type: PropertyValue
value: 0.686

Loudness (dB)
type: PropertyValue
value: -5.849

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Minor

Aspiration
type: MusicAlbum
date published: 2017-07-26

Aspiration
type: MusicAlbum
date published: 2017-07-26

Health
type: MusicAlbum
date published: 2018-11-07

Health
type: MusicAlbum
date published: 2018-11-07

maverick
type: MusicAlbum
date published: 2019-03-13

maverick
type: MusicAlbum
date published: 2019-03-13

Shadow
type: MusicAlbum
date published: 2023-03-22

Shadow
type: MusicAlbum
date published: 2023-03-22