sin decade
type: MusicGroup
genre: math rock
genre: midwest emo
popularity: 5
followers: 201
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb56ee51798d59dc94a2c83f338369e4574797436130b72a50d62e0ba36a207c5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/832ef8de-f802-45ac-a161-b800705c92d2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/832ef8de-f802-45ac-a161-b800705c92d2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/832ef8de-f802-45ac-a161-b800705c92d2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb56ee51798d59dc94a2c83f338369e4574797436130b72a50d62e0ba36a207c5","name":"sin decade","registered_at":"2026-06-17T11:23:28Z","symbol":"NIM1380083","token_address":"0x55733d2127bb7fe86073cf746588dd975615ab23","type":"artist","uuid":"832ef8de-f802-45ac-a161-b800705c92d2"}
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 0xb56ee51798d59dc94a2c83f338369e4574797436130b72a50d62e0ba36a207c5. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/832ef8de-f802-45ac-a161-b800705c92d2.json and https://artists.proofprofile.net/proofs/artist/832ef8de-f802-45ac-a161-b800705c92d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xb56ee51798d59dc94a2c83f338369e4574797436130b72a50d62e0ba36a207c5","name":"sin decade","registered_at":"2026-06-17T11:23:28Z","symbol":"NIM1380083","token_address":"0x55733d2127bb7fe86073cf746588dd975615ab23","type":"artist","uuid":"832ef8de-f802-45ac-a161-b800705c92d2"}
album: Mission
  type: MusicAlbum
  date published: 2020-09-27
  track: 俺の失敗
    type: MusicRecording
    duration: PT2M46S
    duration ms: 166045
    explicit: false
    by artist: sin decade
    in album: Mission
      type: MusicAlbum
      date published: 2020-09-27
    genre: math rock
    genre: midwest emo
    isrc code: GBSMU8777243
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T20:15:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0dc9effdba5ece0c30937a1b35ecdb86011754cf0e69f4be263f254d42e7522c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956551
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956551
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU8777243
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T21:18:05Z
    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 0x0dc9effdba5ece0c30937a1b35ecdb86011754cf0e69f4be263f254d42e7522c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBSMU8777243.
      date published: 2026-07-03T21:18:05Z
    audio: 俺の失敗
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.006
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.603
      additional property: Energy
        type: PropertyValue
        value: 0.748
      additional property: Speechiness
        type: PropertyValue
        value: 0.061
      additional property: Acousticness
        type: PropertyValue
        value: 0.128
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.447
      additional property: Liveness
        type: PropertyValue
        value: 0.398
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.678
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.633
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Don`t get lost
  type: MusicAlbum
  date published: 2023-04-01
album: Don`t get lost
  type: MusicAlbum
  date published: 2023-06-07
album: Summer Smell
  type: MusicAlbum
  date published: 2023-08-08
album: Walk
  type: MusicAlbum
  date published: 2023-12-26
album: Walk
  type: MusicAlbum
  date published: 2023-12-26
album: Wrong
  type: MusicAlbum
  date published: 2024-04-22
album: unknown
  type: MusicAlbum
  date published: 2025-10-22