秋葉原区立すいそうがく団！
type: MusicGroup
genre: orchestra
popularity: 7
followers: 215
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe6c4257c581ad8b6fc8016959744cc4846d7166ea3aad7e81bb16aed453229ff
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954647
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954647
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d6f16223-d0e3-4a84-b7d0-9cbcaea2a2df.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d6f16223-d0e3-4a84-b7d0-9cbcaea2a2df.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d6f16223-d0e3-4a84-b7d0-9cbcaea2a2df
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:36:58Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe6c4257c581ad8b6fc8016959744cc4846d7166ea3aad7e81bb16aed453229ff","name":"秋葉原区立すいそうがく団！","registered_at":"2026-06-21T03:21:43Z","symbol":"NIM1800730","token_address":"0x6914a5005e791cde868eeaaf98256579564c1854","type":"artist","uuid":"d6f16223-d0e3-4a84-b7d0-9cbcaea2a2df"}
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 0xe6c4257c581ad8b6fc8016959744cc4846d7166ea3aad7e81bb16aed453229ff. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d6f16223-d0e3-4a84-b7d0-9cbcaea2a2df.json and https://artists.proofprofile.net/proofs/artist/d6f16223-d0e3-4a84-b7d0-9cbcaea2a2df.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:36:58Z
  text: {"copyright_id":"0xe6c4257c581ad8b6fc8016959744cc4846d7166ea3aad7e81bb16aed453229ff","name":"秋葉原区立すいそうがく団！","registered_at":"2026-06-21T03:21:43Z","symbol":"NIM1800730","token_address":"0x6914a5005e791cde868eeaaf98256579564c1854","type":"artist","uuid":"d6f16223-d0e3-4a84-b7d0-9cbcaea2a2df"}
album: 人気のアニソンを吹奏楽で演奏してみた！#あきすい
  type: MusicAlbum
  date published: 2018-07-11
  track: 銀河鉄道999 - Wind Orchestra Ver.
    type: MusicRecording
    duration: PT2M59S
    duration ms: 179093
    explicit: false
    by artist: 秋葉原区立すいそうがく団！
    in album: 人気のアニソンを吹奏楽で演奏してみた！#あきすい
      type: MusicAlbum
      date published: 2018-07-11
    genre: orchestra
    isrc code: JPU871800009
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T04:01:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0d404652ecb3f55e137928353a8964f952753cf7be664e79d079923305f25670
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956891
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956891
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPU871800009
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T07:16:32Z
    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 0x0d404652ecb3f55e137928353a8964f952753cf7be664e79d079923305f25670. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPU871800009.
      date published: 2026-07-06T07:16:32Z
    audio: 銀河鉄道999 - Wind Orchestra Ver.
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 143.913
      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: 0.534
      additional property: Energy
        type: PropertyValue
        value: 0.656
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.3
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.913
      additional property: Liveness
        type: PropertyValue
        value: 0.322
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.667
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.287
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: おジャ魔女カーニバル！！ - Wind Orchestra Ver.
    type: MusicRecording
    duration: PT3M38S
    duration ms: 218373
    explicit: false
    by artist: 秋葉原区立すいそうがく団！
    in album: 人気のアニソンを吹奏楽で演奏してみた！#あきすい
      type: MusicAlbum
      date published: 2018-07-11
    genre: orchestra
    isrc code: JPU871800012
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T07:19:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4b9835764130b526508b65dd3cd2a9e233abc09b55b56024e634ca1aee8bbd17
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958985
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958985
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPU871800012
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T08:39:15Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9835764130b526508b65dd3cd2a9e233abc09b55b56024e634ca1aee8bbd17. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/JPU871800012.
      date published: 2026-07-21T08:39:15Z
    audio: おジャ魔女カーニバル！！ - Wind Orchestra Ver.
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 147.853
      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: 0.569
      additional property: Energy
        type: PropertyValue
        value: 0.725
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.13
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.144
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.619
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Loudness (dB)
type: PropertyValue
value: -5.306

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Minor