Hlfmn
type: MusicGroup
genre: nu jazz
popularity: 7
followers: 497
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc0064ad93dde4a14d780ad579f6c90268282497b35f3ce4ea862a2f29ec36473
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fc6bfcd8-a48e-4f2f-8151-afef9380dc73.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fc6bfcd8-a48e-4f2f-8151-afef9380dc73.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fc6bfcd8-a48e-4f2f-8151-afef9380dc73
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
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 0xc0064ad93dde4a14d780ad579f6c90268282497b35f3ce4ea862a2f29ec36473. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc6bfcd8-a48e-4f2f-8151-afef9380dc73.json and https://artists.proofprofile.net/proofs/artist/fc6bfcd8-a48e-4f2f-8151-afef9380dc73.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-22T02:53:59Z
album: Mirror
  type: MusicAlbum
  date published: 2013
album: H∆lf M∆n
  type: MusicAlbum
  date published: 2013
album: Half Man
  type: MusicAlbum
  date published: 2014-01-06
album: Mirror
  type: MusicAlbum
  date published: 2014-04-01
album: Metamorphosis
  type: MusicAlbum
  date published: 2016-05-25
album: Dance
  type: MusicAlbum
  date published: 2017-05-25
album: You're Shifting Now
  type: MusicAlbum
  date published: 2017-08-17
album: Monastic Life
  type: MusicAlbum
  date published: 2019-04-22
album: Monastic Life
  type: MusicAlbum
  date published: 2019-04-22
album: Fire (Ritual and Dances)
  type: MusicAlbum
  date published: 2020-10-02
album: Fire
  type: MusicAlbum
  date published: 2020-10-02
album: High Mountain Hyperdrive
  type: MusicAlbum
  date published: 2021-03-08
album: Solar
  type: MusicAlbum
  date published: 2021-05-13
album: High Mountain Hyperdrive
  type: MusicAlbum
  date published: 2021-06-04
album: Personal Anthem
  type: MusicAlbum
  date published: 2021-06-04
album: Girls Just Want To Have Fun
  type: MusicAlbum
  date published: 2021-09-29
album: My Heart is Full of Love (Believe Me)
  type: MusicAlbum
  date published: 2022-03-04
album: Tellurika (Reprise)
  type: MusicAlbum
  date published: 2022-03-25
album: Double Mirror
  type: MusicAlbum
  date published: 2022-04-05
album: Kyoto Drift
  type: MusicAlbum
  date published: 2023-06-09
album: A Lounge Bar in the Sky
  type: MusicAlbum
  date published: 2023-08-01
  track: A Lounge Bar in the Sky
    type: MusicRecording
    duration: PT4M2S
    duration ms: 242823
    explicit: false
    by artist: Hlfmn
    in album: A Lounge Bar in the Sky
      type: MusicAlbum
      date published: 2023-08-01
    genre: nu jazz
    isrc code: SE6TI2335626
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T07:10:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc78ace680f1e91d0a8b99f087b9cb73bedb1e47ca8578bcf07d6393d40e4409d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6TI2335626
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0xc78ace680f1e91d0a8b99f087b9cb73bedb1e47ca8578bcf07d6393d40e4409d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/SE6TI2335626 — a six-check JSON result.
      date published: 2026-07-05T10:01:46Z
    audio: A Lounge Bar in the Sky
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 169.971
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.621
      additional property: Energy
        type: PropertyValue
        value: 0.737
      additional property: Speechiness
        type: PropertyValue
        value: 0.085
      additional property: Acousticness
        type: PropertyValue
        value: 0.004
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.902
      additional property: Liveness
        type: PropertyValue
        value: 0.071
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.739
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.986
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: AIKO LIKES TO RUN
  type: MusicAlbum
  date published: 2023-11-06
album: London Night Out
  type: MusicAlbum
  date published: 2023-12-31
album: 黙考
  type: MusicAlbum
  date published: 2024-04-12
album: Earthbeats
  type: MusicAlbum
  date published: 2024-05-24
album: SUKUNA
  type: MusicAlbum
  date published: 2024-10-29
album: Postcard from a Past Self #1 : Ascension
album: Postcard from a Past Self #2 : The Magic Piper
album: Postcard from a Past Self #3 : I was left out in the cold
album: Postcard from a Past Self #4 : Everything I Lost
album: Postcards from a Past Self (2014-2018)
album: Postcard from a Past Self #13 : End Credits

Postcard from a Past Self #1 : Ascension
type: MusicAlbum
date published: 2025-02-18

Postcard from a Past Self #2 : The Magic Piper
type: MusicAlbum
date published: 2025-03-04

Postcard from a Past Self #3 : I was left out in the cold
type: MusicAlbum
date published: 2025-03-14

Postcard from a Past Self #4 : Everything I Lost
type: MusicAlbum
date published: 2025-03-28

Postcards from a Past Self (2014-2018)
type: MusicAlbum
date published: 2025-04-15

Postcard from a Past Self #13 : End Credits
type: MusicAlbum
date published: 2025-06-10