315 STARS (メンタル Ver.)
type: MusicGroup
popularity: 8
followers: 51
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x094c29358974c836a8b025e03d3952d8c6d1f4d37dc04b9fddc1e84c732b8988
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/16d2748e-a795-4f1c-bedf-ed92d3df5ad1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/16d2748e-a795-4f1c-bedf-ed92d3df5ad1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/16d2748e-a795-4f1c-bedf-ed92d3df5ad1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x094c29358974c836a8b025e03d3952d8c6d1f4d37dc04b9fddc1e84c732b8988","name":"315 STARS (メンタル Ver.)","registered_at":"2026-06-15T21:44:50Z","symbol":"NIM0841112","token_address":"0x9077f46155501ed3e225b6d0926cf9f49da80d3d","type":"artist","uuid":"16d2748e-a795-4f1c-bedf-ed92d3df5ad1"}
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 0x094c29358974c836a8b025e03d3952d8c6d1f4d37dc04b9fddc1e84c732b8988. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/16d2748e-a795-4f1c-bedf-ed92d3df5ad1.json and https://artists.proofprofile.net/proofs/artist/16d2748e-a795-4f1c-bedf-ed92d3df5ad1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x094c29358974c836a8b025e03d3952d8c6d1f4d37dc04b9fddc1e84c732b8988","name":"315 STARS (メンタル Ver.)","registered_at":"2026-06-15T21:44:50Z","symbol":"NIM0841112","token_address":"0x9077f46155501ed3e225b6d0926cf9f49da80d3d","type":"artist","uuid":"16d2748e-a795-4f1c-bedf-ed92d3df5ad1"}
album: THE IDOLM@STER SideM WakeMini! MUSIC COLLECTION 02
  type: MusicAlbum
  date published: 2018-12-05
  track: Friendly Smile
    type: MusicRecording
    duration: PT3M30S
    duration ms: 210533
    explicit: false
    by artist: 315 STARS (メンタル Ver.)
    in album: THE IDOLM@STER SideM WakeMini! MUSIC COLLECTION 02
      type: MusicAlbum
      date published: 2018-12-05
    isrc code: JPI101802764
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T13:37:00+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x06ac48199bd23105ba2a8d7ef1e28a9c8dcbcd9189f0c5daa71492f3353e5b25
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958166
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958166
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI101802764
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T16:39:23Z
    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 0x06ac48199bd23105ba2a8d7ef1e28a9c8dcbcd9189f0c5daa71492f3353e5b25. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:39:23Z), 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/JPI101802764.
      date published: 2026-07-15T16:39:23Z
    audio: Friendly Smile
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 163.975
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.658
      additional property: Energy
        type: PropertyValue
        value: 0.966
      additional property: Speechiness
        type: PropertyValue
        value: 0.053
      additional property: Acousticness
        type: PropertyValue
        value: 0.219
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.261
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.961
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.956
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor