futures
type: MusicGroup
genre: city pop
genre: japanese indie
genre: j-r&b
description: Futures may mean: Finance Futures contract, a tradable financial derivatives contract Futures exchange, a financial market where futures contracts are traded Modern Trader, formerly Futures, an Ameri
popularity: 7
followers: 992
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84cf5d6459576eedeb709fbcbcde9c397a408db65b92800532bad5285a7ab822. 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/a2001970-90e2-4ea8-a8c2-2b2699d7354b.json and https://artists.proofprofile.net/proofs/artist/a2001970-90e2-4ea8-a8c2-2b2699d7354b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
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  track: siro
    type: MusicRecording
    duration: PT5M10S
    duration ms: 310000
    explicit: false
    by artist: futures
    in album: siro
      type: MusicAlbum
      date published: 2025-02-19
    genre: city pop
    genre: japanese indie
    genre: j-r&b
    isrc code: JPG102500232
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    additional property: OTSTimestamp
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    additional property: OTSVerifyInstructions
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      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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0ec38e80694b64ac3385a855d02a8bf80f3f849e3ea6dfe805fe0ecd49c15b. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/JPG102500232.
      date published: 2026-07-21T02:01:41Z
    audio: siro
      type: AudioObject
      additional property: Tempo (BPM)
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        value: 4
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      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
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album: TOKYO OWLS

Valence (Positivity)
type: PropertyValue
value: 0.82

Loudness (dB)
type: PropertyValue
value: -7.471

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Minor

TOKYO OWLS
type: MusicAlbum
date published: 2025-03-26
track: TOKYO OWLS - feat. 夢句
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  duration ms: 334482
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    type: MusicAlbum
    date published: 2025-03-26
  genre: city pop
  genre: japanese indie
  genre: j-r&b
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T04:30:31Z
  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 0xe6f68d4772cf967a19397cef08916d4273bfcedf73a4349aa2fc5a2ee2e165ea. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/JPG102500558.
    date published: 2026-07-16T04:30:31Z
  audio: TOKYO OWLS - feat. 夢句
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 86.977
    additional property: Musical Key
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      value: 5
    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
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      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.706
    additional property: Energy
      type: PropertyValue
      value: 0.56
    additional property: Speechiness
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      value: 0.04
    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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      value: F
    additional property: Mode Name
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      value: Major