メレル
type: MusicGroup
genre: vocaloid
popularity: 5
followers: 493
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x099326a587d479ec2bb1006b497894ed782b22d2dc70b8752660d73449956d01
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a7be9e39-8cc4-44d8-8331-410c3b0fee5c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a7be9e39-8cc4-44d8-8331-410c3b0fee5c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a7be9e39-8cc4-44d8-8331-410c3b0fee5c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x099326a587d479ec2bb1006b497894ed782b22d2dc70b8752660d73449956d01","name":"メレル","registered_at":"2026-06-20T08:21:05Z","symbol":"NIM1564921","token_address":"0x128294c0fdf89321f39d1da911360f5491d47c3f","type":"artist","uuid":"a7be9e39-8cc4-44d8-8331-410c3b0fee5c"}
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 0x099326a587d479ec2bb1006b497894ed782b22d2dc70b8752660d73449956d01. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7be9e39-8cc4-44d8-8331-410c3b0fee5c.json and https://artists.proofprofile.net/proofs/artist/a7be9e39-8cc4-44d8-8331-410c3b0fee5c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x099326a587d479ec2bb1006b497894ed782b22d2dc70b8752660d73449956d01","name":"メレル","registered_at":"2026-06-20T08:21:05Z","symbol":"NIM1564921","token_address":"0x128294c0fdf89321f39d1da911360f5491d47c3f","type":"artist","uuid":"a7be9e39-8cc4-44d8-8331-410c3b0fee5c"}
album: 宵闇幻燈
  type: MusicAlbum
  date published: 2018-08-23
  track: 宵闇幻燈
    type: MusicRecording
    duration: PT3M50S
    duration ms: 230893
    explicit: false
    by artist: メレル
    in album: 宵闇幻燈
      type: MusicAlbum
      date published: 2018-08-23
    genre: vocaloid
    isrc code: JPE561804910
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T11:55:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x83a2aa9672ab40fe6875fcd6e4d487f042cc6bd87d0eddac70cb6209da7a462e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958728
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958728
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPE561804910
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T12:24:55Z
    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 0x83a2aa9672ab40fe6875fcd6e4d487f042cc6bd87d0eddac70cb6209da7a462e. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/JPE561804910.
      date published: 2026-07-19T12:24:55Z
    audio: 宵闇幻燈
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.001
      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: 0.582
      additional property: Energy
        type: PropertyValue
        value: 0.77
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0.197
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.201
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.707
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.121
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: BROKEN FLOWERS
  type: MusicAlbum
  date published: 2018-11-18
album: BROKEN FLOWERS
  type: MusicAlbum
  date published: 2018-11-18
album: 福音の名前
  type: MusicAlbum
  date published: 2020-01-08
album: SLATE DOOR
  type: MusicAlbum
  date published: 2021-09-01
album: mahogany frame
  type: MusicAlbum
  date published: 2021-12-15
album: MUSEUM
  type: MusicAlbum
  date published: 2023-01-26
album: カフェインロス
  type: MusicAlbum
  date published: 2023-02-23
album: 花瓶と春寒
  type: MusicAlbum
  date published: 2023-04-11
album: TIME LAPSE
  type: MusicAlbum
  date published: 2023-12-22
album: 夜間鉄道
  type: MusicAlbum
  date published: 2024-05-14
album: 閃光
  type: MusicAlbum
  date published: 2024-12-06
album: LOST JEWELRY
  type: MusicAlbum
  date published: 2025-03-17
album: クローバーブルー
  type: MusicAlbum
  date published: 2025-05-03
album: ユートピアシンドローム
  type: MusicAlbum
  date published: 2025-05-23
album: DEADLOCK HEART
  type: MusicAlbum
  date published: 2025-10-07
track: snowbound (feat. 初音ミク)

snowbound (feat. 初音ミク)
type: MusicRecording
duration: PT4M0S
duration ms: 240000
explicit: false
by artist: メレル
by artist: Hatsune Miku
in album: White Luminescence
  type: MusicAlbum
  date published: 2023-02-01
popularity: 1
isrc code: JP92Q2301032
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:02:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xca61a5df7e32ecde77788c5c80e4028e4ffdea7c6bf0a39b4b36013e5799a133
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2301032
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca61a5df7e32ecde77788c5c80e4028e4ffdea7c6bf0a39b4b36013e5799a133. 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/JP92Q2301032.
  date published: 2026-07-08T03:22:41Z
audio: snowbound (feat. 初音ミク)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 157.428
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.595
  additional property: Energy
    type: PropertyValue
    value: 0.614
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.616
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.071
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.517
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.77
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor