K 77
type: MusicGroup
genre: organic house
popularity: 9
followers: 138
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc6f584f97de061033d130af73f30a384309059fde11c4be373fa120bca894abf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954043
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954043
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3efe6202-5769-4ab6-9a8a-927b75823368.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3efe6202-5769-4ab6-9a8a-927b75823368.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3efe6202-5769-4ab6-9a8a-927b75823368
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:15:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc6f584f97de061033d130af73f30a384309059fde11c4be373fa120bca894abf","name":"K 77","registered_at":"2026-06-16T11:34:11Z","symbol":"NIM1039130","token_address":"0x8674492b023526a922d409c10a6417d785bfe708","type":"artist","uuid":"3efe6202-5769-4ab6-9a8a-927b75823368"}
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 0xc6f584f97de061033d130af73f30a384309059fde11c4be373fa120bca894abf. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3efe6202-5769-4ab6-9a8a-927b75823368.json and https://artists.proofprofile.net/proofs/artist/3efe6202-5769-4ab6-9a8a-927b75823368.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T04:15:20Z
  text: {"copyright_id":"0xc6f584f97de061033d130af73f30a384309059fde11c4be373fa120bca894abf","name":"K 77","registered_at":"2026-06-16T11:34:11Z","symbol":"NIM1039130","token_address":"0x8674492b023526a922d409c10a6417d785bfe708","type":"artist","uuid":"3efe6202-5769-4ab6-9a8a-927b75823368"}
album: 4th Animal
  type: MusicAlbum
  date published: 2021-01-29
album: Zoologisch
  type: MusicAlbum
  date published: 2021-02-25
album: Where to Go?
  type: MusicAlbum
  date published: 2021-04-06
album: Where to Go?
  type: MusicAlbum
  date published: 2021-04-06
album: Tempation in My Head
  type: MusicAlbum
  date published: 2021-05-01
album: Here Again !
  type: MusicAlbum
  date published: 2021-05-15
album: Jump on It
  type: MusicAlbum
  date published: 2021-09-30
album: Gone
  type: MusicAlbum
  date published: 2021-12-27
album: Looped
  type: MusicAlbum
  date published: 2022-01-30
album: Imagination
  type: MusicAlbum
  date published: 2022-05-06
album: Your Touch
  type: MusicAlbum
  date published: 2022-09-15
album: The Flow
  type: MusicAlbum
  date published: 2022-09-22
album: The Light
  type: MusicAlbum
  date published: 2022-10-06
album: The Trees
  type: MusicAlbum
  date published: 2022-10-13
album: Humans
  type: MusicAlbum
  date published: 2023-07-05
album: Yasmine
  type: MusicAlbum
  date published: 2023-09-18
album: Forest
  type: MusicAlbum
  date published: 2024-03-14
album: Forest Remixes
  type: MusicAlbum
  date published: 2025-02-12
album: Violette
  type: MusicAlbum
  date published: 2025-04-10
  track: Violette
    type: MusicRecording
    duration: PT5M27S
    duration ms: 327250
    explicit: false
    by artist: K 77
    in album: Violette
      type: MusicAlbum
      date published: 2025-04-10
    genre: organic house
    isrc code: US83Z2507553
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T04:56:18+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xfc1e49ca6db7bda8e5e879a730a47b7ae0a80fe4b2d8bf2b0e4fa8ea04fd7c98
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956889
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956889
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US83Z2507553
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T06:56:49Z
    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 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 0xfc1e49ca6db7bda8e5e879a730a47b7ae0a80fe4b2d8bf2b0e4fa8ea04fd7c98. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US83Z2507553 — a six-check JSON result.
      date published: 2026-07-06T06:56:49Z
    audio: Violette
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.001
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.662
      additional property: Energy
        type: PropertyValue
        value: 0.89
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.112
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.822
      additional property: Liveness
        type: PropertyValue
        value: 0.124
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.487
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.767
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor