U&pia
type: MusicGroup
genre: j-pop
popularity: 14
followers: 1071
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x327cddf8e426a7e0f91561b9ffba68dd3779990b5ee0fcb0a31edfbd8faf4824
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953750
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953750
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a764d696-f745-4410-b64d-2bd0fe75ac18.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a764d696-f745-4410-b64d-2bd0fe75ac18.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a764d696-f745-4410-b64d-2bd0fe75ac18
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T06:12:23Z
additional property: OTSCanonicalRecord
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 0x327cddf8e426a7e0f91561b9ffba68dd3779990b5ee0fcb0a31edfbd8faf4824. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a764d696-f745-4410-b64d-2bd0fe75ac18.json and https://artists.proofprofile.net/proofs/artist/a764d696-f745-4410-b64d-2bd0fe75ac18.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T06:12:23Z
album: Utopia
  type: MusicAlbum
  date published: 2022-09-26
album: Utopia
  type: MusicAlbum
  date published: 2022-09-26
album: MoyaMoya
  type: MusicAlbum
  date published: 2022-10-22
album: MoyaMoya
  type: MusicAlbum
  date published: 2022-10-22
album: One
  type: MusicAlbum
  date published: 2023-01-30
album: One
  type: MusicAlbum
  date published: 2023-01-30
album: Sorairo
  type: MusicAlbum
  date published: 2023-02-26
album: Sorairo
  type: MusicAlbum
  date published: 2023-02-26
album: S.T.A.R.S
  type: MusicAlbum
  date published: 2023-04-16
album: S.T.A.R.S
  type: MusicAlbum
  date published: 2023-04-16
album: Move on / AMAIWANA
  type: MusicAlbum
  date published: 2023-04-18
album: Move on / AMAIWANA
  type: MusicAlbum
  date published: 2023-04-18
album: My Baby
  type: MusicAlbum
  date published: 2023-06-04
album: My Baby
  type: MusicAlbum
  date published: 2023-06-04
  track: My Baby
    type: MusicRecording
    duration: PT2M50S
    duration ms: 170187
    explicit: false
    by artist: U&pia
    in album: My Baby
      type: MusicAlbum
      date published: 2023-06-04
    genre: j-pop
    isrc code: TCJPW2323604
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T22:45:06+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x984ea74dd27cb1ff85a5585d0ea158cd8bc847c8650fedb90f38e082f405c038
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956728
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956728
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPW2323604
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:43:49Z
    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 0x984ea74dd27cb1ff85a5585d0ea158cd8bc847c8650fedb90f38e082f405c038. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCJPW2323604.
      date published: 2026-07-05T01:43:49Z
    audio: My Baby
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.037
      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
        type: PropertyValue
        value: 0.751
      additional property: Energy
        type: PropertyValue
        value: 0.747
      additional property: Speechiness
        type: PropertyValue
        value: 0.134
      additional property: Acousticness
        type: PropertyValue
        value: 0.006
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.374
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.893
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.352
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Summer Dive
  type: MusicAlbum
  date published: 2023-07-26
album: Summer Dive
  type: MusicAlbum
  date published: 2023-07-26
album: Artist ?
  type: MusicAlbum
  date published: 2023-08-12
album: Artist ?
  type: MusicAlbum
  date published: 2023-08-12
album: Ami proche (feat. KENCHOS & KOJI ISIWATA)
  type: MusicAlbum
  date published: 2023-08-30
album: Ami proche (feat. けんちょす & 石綿宏司)
  type: MusicAlbum
  date published: 2023-08-30
album: New City
  type: MusicAlbum
  date published: 2023-09-30
album: New City
  type: MusicAlbum
  date published: 2023-09-30
album: Ami proche
  type: MusicAlbum
  date published: 2023-11-04
album: Ami proche
  type: MusicAlbum
  date published: 2023-11-04
album: Back
  type: MusicAlbum
  date published: 2023-11-11
album: Back
  type: MusicAlbum
  date published: 2023-11-11
  track: Back
    type: MusicRecording
    duration: PT3M26S
    duration ms: 206896
    explicit: false
    by artist: U&pia
    in album: Back
    genre: j-pop
    isrc code: TCJPY2300338
    additional property: CopyrightID
    additional property: CopyrightStatus
    additional property: CopyrightRegisteredAt
    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: Back
album: Star"light"s
album: Stereo type
album: Origin
album: U&der #1
album: Matsuri

U&pia
type: MusicGroup

Back
type: MusicAlbum
date published: 2023-11-11

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-20T07:04:09+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x410d3fadff430723575d12b4fd13f46152ad04f5cd45f5b7446120996fd41473

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 958842

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958842

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPY2300338

OTSTimestamp
type: PropertyValue
value: 2026-07-20T10:04:19Z

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 0x410d3fadff430723575d12b4fd13f46152ad04f5cd45f5b7446120996fd41473. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:04:19Z), 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/TCJPY2300338.
date published: 2026-07-20T10:04:19Z

Back
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 145.004
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.619
additional property: Energy
  type: PropertyValue
  value: 0.734
additional property: Speechiness
  type: PropertyValue
  value: 0.037
additional property: Acousticness
  type: PropertyValue
  value: 0.182
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.098
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.627
additional property: Loudness (dB)
  type: PropertyValue
  value: -7.401
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major

Star"light"s
type: MusicAlbum
date published: 2023-12-29

Star"light"s
type: MusicAlbum
date published: 2023-12-29

Stereo type
type: MusicAlbum
date published: 2024-07-12

Stereo type
type: MusicAlbum
date published: 2024-07-12
track: Billy Billy Young
  type: MusicRecording
  duration: PT3M41S
  duration ms: 221678
  explicit: false
  by artist: U&pia
  in album: Stereo type
    type: MusicAlbum
    date published: 2024-07-12
  genre: j-pop
  isrc code: TCJPA2474010
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T01:14:13+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7e8482bdcbd2953b0e8ff6d212cf85101544337b915186c3370712071496e815
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958484
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958484
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPA2474010
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T03:34:53Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8482bdcbd2953b0e8ff6d212cf85101544337b915186c3370712071496e815. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/TCJPA2474010.
    date published: 2026-07-18T03:34:53Z
  audio: Billy Billy Young
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 122.052
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.699
    additional property: Energy
      type: PropertyValue
      value: 0.9
    additional property: Speechiness
      type: PropertyValue
      value: 0.102
    additional property: Acousticness
      type: PropertyValue
      value: 0.067
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.11
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.716
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.042
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Origin
type: MusicAlbum
date published: 2025-02-16

U&der #1
type: MusicAlbum
date published: 2025-02-21

Matsuri
type: MusicAlbum
date published: 2025-06-29
track: Matsuri
  type: MusicRecording
  duration: PT3M0S
  duration ms: 180827
  explicit: false
  by artist: U&pia
  in album: Matsuri
    type: MusicAlbum
    date published: 2025-06-29
  genre: j-pop
  isrc code: TCJPJ2537487
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf0764ee78225378eed1e3a483ccd6ecb09d757fe5b7f1a2707bd668f3609b91b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958792
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958792
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPJ2537487
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T01:33:41Z
  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 0xf0764ee78225378eed1e3a483ccd6ecb09d757fe5b7f1a2707bd668f3609b91b. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:33:41Z), 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/TCJPJ2537487.
    date published: 2026-07-20T01:33:41Z
  audio: Matsuri
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 145.028
    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: 0.605
    additional property: Energy
      type: PropertyValue
      value: 0.926
    additional property: Speechiness
      type: PropertyValue
      value: 0.106
    additional property: Acousticness
      type: PropertyValue
      value: 0.029
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.365
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.628
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.169
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major