Maywa Denki
type: MusicGroup
genre: japanese indie
genre: shibuya-kei
popularity: 9
followers: 2532
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe94c963f356cd568bdcf018827156572a2e381f218fa5fe2f04ff452345f8741
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953928
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953928
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1dedab9d-84ad-488a-8968-0fe1479df9c7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1dedab9d-84ad-488a-8968-0fe1479df9c7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1dedab9d-84ad-488a-8968-0fe1479df9c7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T10:21:55Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe94c963f356cd568bdcf018827156572a2e381f218fa5fe2f04ff452345f8741","name":"Maywa Denki","registered_at":"2026-06-15T23:51:45Z","symbol":"NIM0871395","token_address":"0xfb01f47d09ea895071748ec2c5a0e3883e8c62c3","type":"artist","uuid":"1dedab9d-84ad-488a-8968-0fe1479df9c7"}
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 0xe94c963f356cd568bdcf018827156572a2e381f218fa5fe2f04ff452345f8741. Chain 2 (Bitcoin): anchored in block 953928 (2026-06-16T10:21:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1dedab9d-84ad-488a-8968-0fe1479df9c7.json and https://artists.proofprofile.net/proofs/artist/1dedab9d-84ad-488a-8968-0fe1479df9c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T10:21:55Z
  text: {"copyright_id":"0xe94c963f356cd568bdcf018827156572a2e381f218fa5fe2f04ff452345f8741","name":"Maywa Denki","registered_at":"2026-06-15T23:51:45Z","symbol":"NIM0871395","token_address":"0xfb01f47d09ea895071748ec2c5a0e3883e8c62c3","type":"artist","uuid":"1dedab9d-84ad-488a-8968-0fe1479df9c7"}
album: 提供 明和電機
  type: MusicAlbum
  date published: 1996
  track: 地球のプレゼント《明和電機愛唱歌》
    type: MusicRecording
    duration: PT4M30S
    duration ms: 270640
    explicit: false
    by artist: Maywa Denki
    in album: 提供 明和電機
      type: MusicAlbum
      date published: 1996
    genre: japanese indie
    genre: shibuya-kei
    isrc code: JPSR09503227
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T03:27:47+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7b4707cfdd20e5f8fe54f18af5bbf90c33253ff4c982e13c387c648a047f3e0e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956889
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956889
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPSR09503227
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T06:56:49Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4707cfdd20e5f8fe54f18af5bbf90c33253ff4c982e13c387c648a047f3e0e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPSR09503227.
      date published: 2026-07-06T06:56:49Z
    audio: 地球のプレゼント《明和電機愛唱歌》
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 144.917
      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: 0.597
      additional property: Energy
        type: PropertyValue
        value: 0.937
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.04
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.007
      additional property: Liveness
        type: PropertyValue
        value: 0.101
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.929
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.135
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: 御中元 明和電機
  type: MusicAlbum
  date published: 1996
  track: 明和電機社歌
    type: MusicRecording
    duration: PT3M13S
    duration ms: 193133
    explicit: false
    by artist: Maywa Denki
    in album: 御中元 明和電機
      type: MusicAlbum
      date published: 1996
    genre: japanese indie
    genre: shibuya-kei
    isrc code: JPSR09601620
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T05:17:55+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc52e5a93944ccc1236cc4df3db476711ceaf5417c32420966d723d55669e45e3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPSR09601620
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52e5a93944ccc1236cc4df3db476711ceaf5417c32420966d723d55669e45e3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPSR09601620.
      date published: 2026-07-05T10:01:46Z
    audio: 明和電機社歌
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 147.728
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.487
      additional property: Energy
        type: PropertyValue
        value: 0.624
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.104
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: 魁 明和電機
album: 道
album: サバオでサンバ!
album: 地球のプレゼント
album: 明和電機のヤックウィ～ン
album: 明和電機のヤックウィ~ン
album: Dr.HIGE and Toy box
album: ヒゲ博士とオモチャ箱
album: SUSHI GO!
album: SAVAO
album: Micro Sun
album: ミクロの太陽

Liveness
type: PropertyValue
value: 0.122

Valence (Positivity)
type: PropertyValue
value: 0.733

Loudness (dB)
type: PropertyValue
value: -8.119

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

提供 明和電機
type: MusicAlbum
date published: 1996-01-21

御中元 明和電機
type: MusicAlbum
date published: 1996-08-21

魁 明和電機
type: MusicAlbum
date published: 1997

魁 明和電機
type: MusicAlbum
date published: 1997-08-21

道
type: MusicAlbum
date published: 1998

道
type: MusicAlbum
date published: 1998-05-21

サバオでサンバ!
type: MusicAlbum
date published: 2001-08-22

サバオでサンバ!
type: MusicAlbum
date published: 2001-08-22

地球のプレゼント
type: MusicAlbum
date published: 2002-06-26

地球のプレゼント
type: MusicAlbum
date published: 2002-06-26

明和電機のヤックウィ～ン
type: MusicAlbum
date published: 2013-12-04

明和電機のヤックウィ~ン
type: MusicAlbum
date published: 2013-12-04

Dr.HIGE and Toy box
type: MusicAlbum
date published: 2016-09-04

ヒゲ博士とオモチャ箱
type: MusicAlbum
date published: 2016-09-04

SUSHI GO!
type: MusicAlbum
date published: 2020-06-28

SUSHI GO!
type: MusicAlbum
date published: 2020-06-28

SAVAO
type: MusicAlbum
date published: 2020-10-28

Micro Sun
type: MusicAlbum
date published: 2021-11-27

ミクロの太陽
type: MusicAlbum
date published: 2021-11-27