札幌交響楽団
type: MusicGroup
popularity: 7
followers: 189
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8e381e09a3e7a3154a77ca0c7a3eeaaa127dd7c81c4c189fd2c2894416aed5c8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954553
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954553
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ad66fd2e-0710-4b8e-8c50-6a2c2e59bfbd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ad66fd2e-0710-4b8e-8c50-6a2c2e59bfbd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ad66fd2e-0710-4b8e-8c50-6a2c2e59bfbd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T11:51:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8e381e09a3e7a3154a77ca0c7a3eeaaa127dd7c81c4c189fd2c2894416aed5c8","name":"札幌交響楽団","registered_at":"2026-06-20T10:10:34Z","symbol":"NIM1589220","token_address":"0x1c65bed5736b09f6a4efbd02297b6fac0bafa9a8","type":"artist","uuid":"ad66fd2e-0710-4b8e-8c50-6a2c2e59bfbd"}
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 0x8e381e09a3e7a3154a77ca0c7a3eeaaa127dd7c81c4c189fd2c2894416aed5c8. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad66fd2e-0710-4b8e-8c50-6a2c2e59bfbd.json and https://artists.proofprofile.net/proofs/artist/ad66fd2e-0710-4b8e-8c50-6a2c2e59bfbd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
  text: {"copyright_id":"0x8e381e09a3e7a3154a77ca0c7a3eeaaa127dd7c81c4c189fd2c2894416aed5c8","name":"札幌交響楽団","registered_at":"2026-06-20T10:10:34Z","symbol":"NIM1589220","token_address":"0x1c65bed5736b09f6a4efbd02297b6fac0bafa9a8","type":"artist","uuid":"ad66fd2e-0710-4b8e-8c50-6a2c2e59bfbd"}
album: 交響譚詩 第一楽章
  type: MusicAlbum
  date published: 2018-10-31
album: Miku Symphony Live at Sapporo & Tokyo - 10th Anniversary Best - (札幌公演 DISC1)
  type: MusicAlbum
  date published: 2025-10-01
album: Miku Symphony Live at Sapporo & Tokyo - 10th Anniversary Best - (札幌公演 DISC2)
  type: MusicAlbum
  date published: 2025-10-01
track: ア・ウェイ・ア・ローンII - Live At 札幌市民会館ホール / 1982
  type: MusicRecording
  duration: PT14M48S
  duration ms: 888973
  explicit: false
  by artist: Toru Takemitsu
  by artist: 岩城宏之
  by artist: 札幌交響楽団
  in album: 1982 武満徹世界初演曲集 (Live At 札幌市民会館ホール / 1982)
    type: MusicAlbum
    date published: 2021-07-07
  isrc code: JPPO02101009
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T14:55:13+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6c899f5c040d6ae0824430da91f1c7c3e88b758f724cc5e1f0f2fcba48ec3cb6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960418
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960418
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO02101009
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T15:20:15Z
  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 0x6c899f5c040d6ae0824430da91f1c7c3e88b758f724cc5e1f0f2fcba48ec3cb6. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/JPPO02101009.
    date published: 2026-07-31T15:20:15Z
  audio: ア・ウェイ・ア・ローンII - Live At 札幌市民会館ホール / 1982
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 124.846
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.173
    additional property: Energy
      type: PropertyValue
      value: 0.221
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.918
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.83
    additional property: Liveness
      type: PropertyValue
      value: 0.71
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.036
    additional property: Loudness (dB)
      type: PropertyValue
      value: -22.538
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major