WACAVA
type: MusicGroup
genre: anime
popularity: 12
followers: 903
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x025eed27511fca0d7c8feb12e4c956c9d740a6d7d66ac6385734e0a117bdeae5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953808
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953808
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/efbd955d-1351-41ad-a191-a007cdc08eb4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/efbd955d-1351-41ad-a191-a007cdc08eb4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/efbd955d-1351-41ad-a191-a007cdc08eb4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T16:45:15Z
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 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 0x025eed27511fca0d7c8feb12e4c956c9d740a6d7d66ac6385734e0a117bdeae5. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/efbd955d-1351-41ad-a191-a007cdc08eb4.json and https://artists.proofprofile.net/proofs/artist/efbd955d-1351-41ad-a191-a007cdc08eb4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T16:45:15Z
album: Overfly
  type: MusicAlbum
  date published: 2019-11-13
album: Catch the Moment
  type: MusicAlbum
  date published: 2019-11-13
album: Catch the Moment
  type: MusicAlbum
  date published: 2019-11-13
album: Overfly
  type: MusicAlbum
  date published: 2019-11-13
album: Catch the Moment
  type: MusicAlbum
  date published: 2019-11-13
album: RESISTER
  type: MusicAlbum
  date published: 2019-11-27
album: ラピスラズリ
  type: MusicAlbum
  date published: 2019-11-27
album: RESISTER
  type: MusicAlbum
  date published: 2019-11-27
  track: RESISTER
    type: MusicRecording
    duration: PT3M59S
    duration ms: 239447
    explicit: false
    by artist: WACAVA
    in album: RESISTER
      type: MusicAlbum
      date published: 2019-11-27
    genre: anime
    isrc code: JPU901902874
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T03:32:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x913afc3c2fecdde1e929f068fc3a3f7ce66a0fde9f0f03d0d7c24c1c966c845e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956474
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956474
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPU901902874
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T08:56:35Z
    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 0x913afc3c2fecdde1e929f068fc3a3f7ce66a0fde9f0f03d0d7c24c1c966c845e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPU901902874.
      date published: 2026-07-03T08:56:35Z
    audio: RESISTER
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 170.947
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.364
      additional property: Energy
        type: PropertyValue
        value: 0.934
      additional property: Speechiness
        type: PropertyValue
        value: 0.053
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.086
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.523
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.277
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: ラピスラズリ
  type: MusicAlbum
  date published: 2019-11-27
album: ラピスラズリ
  type: MusicAlbum
  date published: 2019-11-27
album: RESISTER
  type: MusicAlbum
  date published: 2019-11-27
album: センチメンタルクライシス
  type: MusicAlbum
  date published: 2020-01-22
album: センチメンタルクライシス
  type: MusicAlbum
  date published: 2020-01-22
album: コネクト feat. AWAKEN
  type: MusicAlbum
  date published: 2020-03-18
album: コネクト feat. AWAKEN
  type: MusicAlbum
  date published: 2020-03-18
album: コネクト
  type: MusicAlbum
  date published: 2020-03-18
album: ideal white
  type: MusicAlbum
  date published: 2020-04-08
album: ideal white
  type: MusicAlbum
  date published: 2020-04-08
album: ideal white
  type: MusicAlbum
  date published: 2020-04-08
album: aLIEz
  type: MusicAlbum
  date published: 2020-05-13
album: aLIEz
  type: MusicAlbum
  date published: 2020-05-13
album: aLIEz
  type: MusicAlbum
  date published: 2020-05-13
album: aLIEz (English version)
  type: MusicAlbum
  date published: 2020-05-13
album: aLIEz (Chinese version)
  type: MusicAlbum
  date published: 2020-05-13
  track: aLIEz
    type: MusicRecording
    duration: PT4M28S
    duration ms: 268224
    explicit: false
    by artist: WACAVA
    in album: aLIEz (Chinese version)
      type: MusicAlbum
      date published: 2020-05-13
    genre: anime
    isrc code: JPU902001054
    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: aLIEz
album: button
album: Departures ～あなたにおくるアイの歌～
album: ピンクレモネード

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-07T23:44:30+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xfbc07c2c7c14d9228eec2379b3ff63ca02eef0cad286f8457457fbbf8dfb9806

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957120

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957120

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPU902001054

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:22:41Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc07c2c7c14d9228eec2379b3ff63ca02eef0cad286f8457457fbbf8dfb9806. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPU902001054.
date published: 2026-07-08T03:22:41Z

aLIEz
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 184.696
additional property: Musical Key
  type: PropertyValue
  value: 10
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.398
additional property: Energy
  type: PropertyValue
  value: 0.745
additional property: Speechiness
  type: PropertyValue
  value: 0.044
additional property: Acousticness
  type: PropertyValue
  value: 0.001
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.254
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.543
additional property: Loudness (dB)
  type: PropertyValue
  value: -8.875
additional property: Key Name
  type: PropertyValue
  value: Bb
additional property: Mode Name
  type: PropertyValue
  value: Minor

button
type: MusicAlbum
date published: 2020-06-03

Departures ～あなたにおくるアイの歌～
type: MusicAlbum
date published: 2020-08-26

ピンクレモネード
type: MusicAlbum
date published: 2020-09-09