Hahm Yechan
type: MusicGroup
popularity: 10
followers: 428
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x30b0ad62f5b555aa62fcd914aceca3ec5a951b0e0e1361f9634e501bb46c0b63
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a6364fc5-0acb-4a64-a6f4-78dbc327b0a4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a6364fc5-0acb-4a64-a6f4-78dbc327b0a4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a6364fc5-0acb-4a64-a6f4-78dbc327b0a4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x30b0ad62f5b555aa62fcd914aceca3ec5a951b0e0e1361f9634e501bb46c0b63","name":"Hahm Yechan","registered_at":"2026-06-20T07:23:44Z","symbol":"NIM1553315","token_address":"0xa62dc3d1c01a4a09e045cbe1138dff6fde0de272","type":"artist","uuid":"a6364fc5-0acb-4a64-a6f4-78dbc327b0a4"}
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 0x30b0ad62f5b555aa62fcd914aceca3ec5a951b0e0e1361f9634e501bb46c0b63. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a6364fc5-0acb-4a64-a6f4-78dbc327b0a4.json and https://artists.proofprofile.net/proofs/artist/a6364fc5-0acb-4a64-a6f4-78dbc327b0a4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x30b0ad62f5b555aa62fcd914aceca3ec5a951b0e0e1361f9634e501bb46c0b63","name":"Hahm Yechan","registered_at":"2026-06-20T07:23:44Z","symbol":"NIM1553315","token_address":"0xa62dc3d1c01a4a09e045cbe1138dff6fde0de272","type":"artist","uuid":"a6364fc5-0acb-4a64-a6f4-78dbc327b0a4"}
album: Lighthouse (feat. Ohyoung)
  type: MusicAlbum
  date published: 2022-01-31
album: We’re Close But We Grow Apart (feat. Austn)
  type: MusicAlbum
  date published: 2022-03-27
album: Bruise
  type: MusicAlbum
  date published: 2022-04-10
album: Love Is All Around
  type: MusicAlbum
  date published: 2022-06-09
  track: First Love Never Works Out
    type: MusicRecording
    duration: PT2M55S
    duration ms: 175714
    explicit: false
    by artist: Hahm Yechan
    in album: Love Is All Around
      type: MusicAlbum
      date published: 2022-06-09
    isrc code: KRMIM2205857
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T18:56:02+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6e4c3760d9229cf53fad7c4345b2d0f85f0120e4d3b5b77e78cf04c3493101e3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958194
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958194
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRMIM2205857
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T20:32:27Z
    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 0x6e4c3760d9229cf53fad7c4345b2d0f85f0120e4d3b5b77e78cf04c3493101e3. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/KRMIM2205857.
      date published: 2026-07-15T20:32:27Z
    audio: First Love Never Works Out
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.031
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.686
      additional property: Energy
        type: PropertyValue
        value: 0.675
      additional property: Speechiness
        type: PropertyValue
        value: 0.052
      additional property: Acousticness
        type: PropertyValue
        value: 0.79
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.368
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.642
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.256
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major