まさよし
type: MusicGroup
genre: vocaloid
popularity: 14
followers: 123
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf47537bc79e23c803166861c2ad503597afd8506fdd5dc72ff9ea087c6f2410d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953791
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953791
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dff7f5e0-c7c7-4c95-b008-a6694a30fefa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dff7f5e0-c7c7-4c95-b008-a6694a30fefa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dff7f5e0-c7c7-4c95-b008-a6694a30fefa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T13:40:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf47537bc79e23c803166861c2ad503597afd8506fdd5dc72ff9ea087c6f2410d","name":"まさよし","registered_at":"2026-06-15T04:02:45Z","symbol":"NIM0675969","token_address":"0x57d0942f03edb4387b69bd21935872b82796e09b","type":"artist","uuid":"dff7f5e0-c7c7-4c95-b008-a6694a30fefa"}
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 0xf47537bc79e23c803166861c2ad503597afd8506fdd5dc72ff9ea087c6f2410d. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dff7f5e0-c7c7-4c95-b008-a6694a30fefa.json and https://artists.proofprofile.net/proofs/artist/dff7f5e0-c7c7-4c95-b008-a6694a30fefa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T13:40:30Z
  text: {"copyright_id":"0xf47537bc79e23c803166861c2ad503597afd8506fdd5dc72ff9ea087c6f2410d","name":"まさよし","registered_at":"2026-06-15T04:02:45Z","symbol":"NIM0675969","token_address":"0x57d0942f03edb4387b69bd21935872b82796e09b","type":"artist","uuid":"dff7f5e0-c7c7-4c95-b008-a6694a30fefa"}
album: 明日へのお土産
  type: MusicAlbum
  date published: 2023-04-22
album: みんなと一緒に
  type: MusicAlbum
  date published: 2023-10-27
album: みんなでなかよしまさよし
  type: MusicAlbum
  date published: 2023-12-31
album: 農家グランマ現れた
  type: MusicAlbum
  date published: 2024-04-10
album: カラフル男爵現れた
  type: MusicAlbum
  date published: 2024-04-10
album: 時間泥棒現れた
  type: MusicAlbum
  date published: 2024-04-10
album: どすこいベイビー現れた
  type: MusicAlbum
  date published: 2024-04-10
album: 本当の正義現れた
  type: MusicAlbum
  date published: 2024-05-15
album: 酒呑童子現れた
  type: MusicAlbum
  date published: 2024-07-29
album: 高校生侍現れた
  type: MusicAlbum
  date published: 2024-10-04
album: 救世主現れた
  type: MusicAlbum
  date published: 2024-11-01
album: 宇宙飛行士現れた
  type: MusicAlbum
  date published: 2024-12-01
album: 王蛇現れた
  type: MusicAlbum
  date published: 2025-01-17
album: レインボー公爵現れた
  type: MusicAlbum
  date published: 2025-02-14
album: ケルベロス現れた
  type: MusicAlbum
  date published: 2025-03-25
  track: ケルベロス
    type: MusicRecording
    duration: PT2M34S
    duration ms: 154500
    explicit: false
    by artist: まさよし
    in album: ケルベロス現れた
      type: MusicAlbum
      date published: 2025-03-25
    genre: vocaloid
    isrc code: JPW462549904
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T18:30:38+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xde093bb4cdea76d11d86d157bc86f421f6880656757e5e54702004d7745560e8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW462549904
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0xde093bb4cdea76d11d86d157bc86f421f6880656757e5e54702004d7745560e8. 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/JPW462549904.
      date published: 2026-07-05T01:12:41Z
    audio: ケルベロス
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 159.989
      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: 0.415
      additional property: Energy
        type: PropertyValue
        value: 0.879
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.015
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.088
      additional property: Liveness
        type: PropertyValue
        value: 0.463
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.604
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.246
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: 烏
    type: MusicRecording
    duration: PT2M43S
    duration ms: 163200
    explicit: false
    by artist: まさよし
    in album: ケルベロス現れた
      type: MusicAlbum
      date published: 2025-03-25
    genre: vocaloid
    isrc code: JPW462549905
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T01:02:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb345b0b96526c97d607551cc7b6f5730d74dde402b449469a7140c44031fad1c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958951
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958951
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW462549905
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T04:02:44Z
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: 烏
album: シェリー海賊団現れた
album: 転調ババア現れた
album: Fallen Darkness
album: 暴走する力
album: デジタルタトゥー
album: 神速
album: トロピカルジャングル
album: 清巫女現れた
album: メタルケルベロス現れた
album: サファイア
album: 惰性ヒーロー
album: バトルロイヤル
album: ソーセージ
album: ハリケーン
album: モモンガ
album: パラサイト
album: マリオネット
album: 弔い
album: 大混乱
album: ゴシックロリータ現れた

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb345b0b96526c97d607551cc7b6f5730d74dde402b449469a7140c44031fad1c. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:02:44Z), 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/JPW462549905.
date published: 2026-07-21T04:02:44Z

烏
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 149.984
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: 0.628
additional property: Energy
  type: PropertyValue
  value: 0.764
additional property: Speechiness
  type: PropertyValue
  value: 0.029
additional property: Acousticness
  type: PropertyValue
  value: 0.036
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.133
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.445
additional property: Loudness (dB)
  type: PropertyValue
  value: -2.881
additional property: Key Name
  type: PropertyValue
  value: F
additional property: Mode Name
  type: PropertyValue
  value: Major

シェリー海賊団現れた
type: MusicAlbum
date published: 2025-05-14
track: ドクターウォッカ
  type: MusicRecording
  duration: PT2M15S
  duration ms: 135737
  explicit: false
  by artist: まさよし
  in album: シェリー海賊団現れた
    type: MusicAlbum
    date published: 2025-05-14
  genre: vocaloid
  isrc code: JPW462571980
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T10:48:45+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc2b3fdbc949618a3efd92cd7a046d683cbd68b1dd7b7dc19bd53b4e676f34f6c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956822
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956822
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW462571980
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T18:48:28Z
  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 0xc2b3fdbc949618a3efd92cd7a046d683cbd68b1dd7b7dc19bd53b4e676f34f6c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/JPW462571980.
    date published: 2026-07-05T18:48:28Z
  audio: ドクターウォッカ
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 122.016
    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: 0.61
    additional property: Energy
      type: PropertyValue
      value: 0.937
    additional property: Speechiness
      type: PropertyValue
      value: 0.028
    additional property: Acousticness
      type: PropertyValue
      value: 0.003
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.013
    additional property: Liveness
      type: PropertyValue
      value: 0.581
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.645
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.196
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major

転調ババア現れた
type: MusicAlbum
date published: 2025-06-10
track: 転調ババア
  type: MusicRecording
  duration: PT2M1S
  duration ms: 121090
  explicit: false
  by artist: まさよし
  in album: 転調ババア現れた
    type: MusicAlbum
    date published: 2025-06-10
  genre: vocaloid
  isrc code: JPW462586490
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-22T07:11:05+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0372cd1cd00edcd4f1e2cc8ef76faf5c2baf6d35aaf2b80c878ae56e6af87d2c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959109
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959109
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW462586490
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-22T10:13:26Z
  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 0x0372cd1cd00edcd4f1e2cc8ef76faf5c2baf6d35aaf2b80c878ae56e6af87d2c. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T10:13:26Z), 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/JPW462586490.
    date published: 2026-07-22T10:13:26Z
  audio: 転調ババア
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 110.033
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.758
    additional property: Energy
      type: PropertyValue
      value: 0.841
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.255
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.517
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.654
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.579
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Fallen Darkness
type: MusicAlbum
date published: 2025-07-07

暴走する力
type: MusicAlbum
date published: 2025-07-07

デジタルタトゥー
type: MusicAlbum
date published: 2025-07-08

神速
type: MusicAlbum
date published: 2025-07-23

トロピカルジャングル
type: MusicAlbum
date published: 2025-07-29

清巫女現れた
type: MusicAlbum
date published: 2025-07-30

メタルケルベロス現れた
type: MusicAlbum
date published: 2025-08-07

サファイア
type: MusicAlbum
date published: 2025-08-13

惰性ヒーロー
type: MusicAlbum
date published: 2025-08-19

バトルロイヤル
type: MusicAlbum
date published: 2025-08-20

ソーセージ
type: MusicAlbum
date published: 2025-08-27

ハリケーン
type: MusicAlbum
date published: 2025-09-01

モモンガ
type: MusicAlbum
date published: 2025-09-10

パラサイト
type: MusicAlbum
date published: 2025-09-25

マリオネット
type: MusicAlbum
date published: 2025-09-30

弔い
type: MusicAlbum
date published: 2025-10-24

大混乱
type: MusicAlbum
date published: 2025-10-28

ゴシックロリータ現れた
type: MusicAlbum
date published: 2025-11-03