Ordinary Piece
type: MusicGroup
popularity: 6
followers: 56
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x81094ec3ac7c47849e5fce0153efd7bd19a311d8f8f5b326ece67984f4307dd5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954573
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954573
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b55f9910-9f87-4bf7-a979-717698a03fef.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b55f9910-9f87-4bf7-a979-717698a03fef.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b55f9910-9f87-4bf7-a979-717698a03fef
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T15:45:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x81094ec3ac7c47849e5fce0153efd7bd19a311d8f8f5b326ece67984f4307dd5","name":"Ordinary Piece","registered_at":"2026-06-20T14:12:56Z","symbol":"NIM1631223","token_address":"0xe572210967df7e1fc9f85da65ed47a38ba0e629b","type":"artist","uuid":"b55f9910-9f87-4bf7-a979-717698a03fef"}
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 0x81094ec3ac7c47849e5fce0153efd7bd19a311d8f8f5b326ece67984f4307dd5. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b55f9910-9f87-4bf7-a979-717698a03fef.json and https://artists.proofprofile.net/proofs/artist/b55f9910-9f87-4bf7-a979-717698a03fef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T15:45:29Z
  text: {"copyright_id":"0x81094ec3ac7c47849e5fce0153efd7bd19a311d8f8f5b326ece67984f4307dd5","name":"Ordinary Piece","registered_at":"2026-06-20T14:12:56Z","symbol":"NIM1631223","token_address":"0xe572210967df7e1fc9f85da65ed47a38ba0e629b","type":"artist","uuid":"b55f9910-9f87-4bf7-a979-717698a03fef"}
album: Diamond
  type: MusicAlbum
  date published: 2024-03-20
album: Diamond
  type: MusicAlbum
  date published: 2024-03-20
album: Blue Seagull
  type: MusicAlbum
  date published: 2024-07-02
album: Blue Seagull
  type: MusicAlbum
  date published: 2024-07-02
album: Bokura no oto
  type: MusicAlbum
  date published: 2024-07-16
album: 僕らの音
  type: MusicAlbum
  date published: 2024-07-16
album: いつまでも
  type: MusicAlbum
  date published: 2024-10-30
album: itsumademo
  type: MusicAlbum
  date published: 2024-10-30
album: Silver bullet
  type: MusicAlbum
  date published: 2025-05-14
  track: 夏恋シミュレーション
    type: MusicRecording
    duration: PT5M2S
    duration ms: 302360
    explicit: false
    by artist: Ordinary Piece
    in album: Silver bullet
      type: MusicAlbum
      date published: 2025-05-14
    isrc code: TCJPG2554805
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T08:34:36+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0c6bdaac1b25fb2224921ee9846962f6c462f7a13863bc12392425e87bc6038a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958853
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958853
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPG2554805
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T09:11:53Z
    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 0x0c6bdaac1b25fb2224921ee9846962f6c462f7a13863bc12392425e87bc6038a. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/TCJPG2554805.
      date published: 2026-07-20T09:11:53Z
    audio: 夏恋シミュレーション
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 174.983
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.382
      additional property: Energy
        type: PropertyValue
        value: 0.766
      additional property: Speechiness
        type: PropertyValue
        value: 0.057
      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.344
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.628
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.06
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: 流星
    type: MusicRecording
    duration: PT4M57S
    duration ms: 297182
    explicit: false
    by artist: Ordinary Piece
    in album: Silver bullet
      type: MusicAlbum
      date published: 2025-05-14
    isrc code: TCJPG2554815
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T03:25:39+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x607347e35f0dd84f9ff9ec9f3a17d6886875f0d20a49d515a312ee57a5ac2c6c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959094
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959094
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPG2554815
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T03:33:16Z
    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 0x607347e35f0dd84f9ff9ec9f3a17d6886875f0d20a49d515a312ee57a5ac2c6c. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/TCJPG2554815.
      date published: 2026-07-22T03:33:16Z
    audio: 流星
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 151.871
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      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
  track: Liar

Danceability
type: PropertyValue
value: 0.443

Energy
type: PropertyValue
value: 0.564

Speechiness
type: PropertyValue
value: 0.029

Acousticness
type: PropertyValue
value: 0.021

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.131

Valence (Positivity)
type: PropertyValue
value: 0.283

Loudness (dB)
type: PropertyValue
value: -9.248

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Major

Liar
type: MusicRecording
duration: PT3M52S
duration ms: 232316
explicit: false
by artist: Ordinary Piece
in album: Silver bullet
  type: MusicAlbum
  date published: 2025-05-14
isrc code: TCJPG2554819
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-20T09:45:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5c3beaec79dcc7a182d4fb09fe0095d3958159883662569f29b944af6e643afe
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958860
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958860
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPG2554819
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T09:58:28Z
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 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 0x5c3beaec79dcc7a182d4fb09fe0095d3958159883662569f29b944af6e643afe. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/TCJPG2554819.
  date published: 2026-07-20T09:58:28Z
audio: Liar
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.033
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.575
  additional property: Energy
    type: PropertyValue
    value: 0.586
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.009
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.185
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.719
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.303
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Silver bullet
type: MusicAlbum
date published: 2025-05-14