Blade
type: MusicGroup
description: thumb|upright=1.35|The exposed blade and tang of a Japanese sword without the hilt A blade is the sharp, cutting portion of a tool, weapon, or machine, specifically designed to puncture, chop, slice,
popularity: 2
followers: 693
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8baabdf1feaf71b9a92c5d46e568fa6ccb4e797fe66a88d6a26162866239c66d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954010
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954010
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/33db0c8d-225c-4f98-9e49-ae50a36cac8e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/33db0c8d-225c-4f98-9e49-ae50a36cac8e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/33db0c8d-225c-4f98-9e49-ae50a36cac8e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T21:41:36Z
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 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 0x8baabdf1feaf71b9a92c5d46e568fa6ccb4e797fe66a88d6a26162866239c66d. Chain 2 (Bitcoin): anchored in block 954010 (2026-06-16T21:41:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33db0c8d-225c-4f98-9e49-ae50a36cac8e.json and https://artists.proofprofile.net/proofs/artist/33db0c8d-225c-4f98-9e49-ae50a36cac8e.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T21:41:36Z
album: Lè En Débatché
  type: MusicAlbum
  date published: 2020-03-08
  track: Lè En Débatché
    type: MusicRecording
    duration: PT3M21S
    duration ms: 201273
    explicit: true
    by artist: Blade
    in album: Lè En Débatché
      type: MusicAlbum
      date published: 2020-03-08
    isrc code: TCAES2002594
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T12:31:20+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbdb5642518dc75f8bb29fd772aa2e22cfdea04a0aec0a76bad46d76524cc4498
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959008
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959008
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAES2002594
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T13:14:05Z
    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 0xbdb5642518dc75f8bb29fd772aa2e22cfdea04a0aec0a76bad46d76524cc4498. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAES2002594 — a six-check JSON result.
      date published: 2026-07-21T13:14:05Z
    audio: Lè En Débatché
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 106.905
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.867
      additional property: Energy
        type: PropertyValue
        value: 0.61
      additional property: Speechiness
        type: PropertyValue
        value: 0.159
      additional property: Acousticness
        type: PropertyValue
        value: 0.363
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.082
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.331
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.341
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor