S1GA
type: MusicGroup
genre: j-rap
popularity: 20
followers: 95
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x69a6ee08f4ba3460cd57d281c6308524d3ea7cf7c33d1aacbd3b64640b468c07
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953803
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953803
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e8f5cc67-0d5c-4f04-859a-ebf72954d7d1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e8f5cc67-0d5c-4f04-859a-ebf72954d7d1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e8f5cc67-0d5c-4f04-859a-ebf72954d7d1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T15:41:00Z
additional property: OTSCanonicalRecord
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 0x69a6ee08f4ba3460cd57d281c6308524d3ea7cf7c33d1aacbd3b64640b468c07. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e8f5cc67-0d5c-4f04-859a-ebf72954d7d1.json and https://artists.proofprofile.net/proofs/artist/e8f5cc67-0d5c-4f04-859a-ebf72954d7d1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T15:41:00Z
album: 小さい怪獣
  type: MusicAlbum
  date published: 2025-01-20
album: Little Monster
  type: MusicAlbum
  date published: 2025-01-20
  track: Little Monster
    type: MusicRecording
    duration: PT2M50S
    duration ms: 170880
    explicit: false
    by artist: S1GA
    in album: Little Monster
      type: MusicAlbum
      date published: 2025-01-20
    genre: j-rap
    isrc code: TCJPD2552675
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T11:02:20+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2f905e9d42106a693ce6cccc8326f23a42e7f88027334bd0c75541849a611fa0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956728
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956728
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPD2552675
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:43:49Z
    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 0x2f905e9d42106a693ce6cccc8326f23a42e7f88027334bd0c75541849a611fa0. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCJPD2552675.
      date published: 2026-07-05T01:43:49Z
    audio: Little Monster
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 125.023
      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: 0.659
      additional property: Energy
        type: PropertyValue
        value: 0.884
      additional property: Speechiness
        type: PropertyValue
        value: 0.054
      additional property: Acousticness
        type: PropertyValue
        value: 0.108
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.139
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.712
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.133
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: It's your fault
  type: MusicAlbum
  date published: 2025-03-31
album: 君のせいだ
  type: MusicAlbum
  date published: 2025-03-31
album: THIS IS MY LIFE
  type: MusicAlbum
  date published: 2025-08-29
album: Paranoid
  type: MusicAlbum
  date published: 2025-09-29
album: Paranoid
  type: MusicAlbum
  date published: 2025-09-29