Hejin Han
type: MusicGroup
popularity: 17
followers: 145
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xedc52b154bc2ee62770a66cf844334c82947e4c37dc9807e4889aa5b45136a78
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/38ab95e3-15e8-4afd-81d5-b935cbba8afd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/38ab95e3-15e8-4afd-81d5-b935cbba8afd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/38ab95e3-15e8-4afd-81d5-b935cbba8afd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T13:10:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xedc52b154bc2ee62770a66cf844334c82947e4c37dc9807e4889aa5b45136a78","name":"Hejin Han","registered_at":"2026-06-14T10:23:23Z","symbol":"NIM0423179","token_address":"0x3283196d9ac30b558db273e3c72813282a588aa7","type":"artist","uuid":"38ab95e3-15e8-4afd-81d5-b935cbba8afd"}
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 0xedc52b154bc2ee62770a66cf844334c82947e4c37dc9807e4889aa5b45136a78. Chain 2 (Bitcoin): anchored in block 953638 (2026-06-14T13:10:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/38ab95e3-15e8-4afd-81d5-b935cbba8afd.json and https://artists.proofprofile.net/proofs/artist/38ab95e3-15e8-4afd-81d5-b935cbba8afd.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T13:10:39Z
  text: {"copyright_id":"0xedc52b154bc2ee62770a66cf844334c82947e4c37dc9807e4889aa5b45136a78","name":"Hejin Han","registered_at":"2026-06-14T10:23:23Z","symbol":"NIM0423179","token_address":"0x3283196d9ac30b558db273e3c72813282a588aa7","type":"artist","uuid":"38ab95e3-15e8-4afd-81d5-b935cbba8afd"}
album: Pure & White
  type: MusicAlbum
  date published: 2014-06-08
album: Moonglow
  type: MusicAlbum
  date published: 2014-06-29
album: Loves Me Not
  type: MusicAlbum
  date published: 2014-07-27
album: May I Love You?
  type: MusicAlbum
  date published: 2014-08-17
album: Someday
  type: MusicAlbum
  date published: 2014-09-14
album: Rain Again
  type: MusicAlbum
  date published: 2014-10-20
album: Skyhigh
  type: MusicAlbum
  date published: 2014-11-16
album: Petit Etude No. 1
  type: MusicAlbum
  date published: 2015-01-11
album: Winter Fantasy
  type: MusicAlbum
  date published: 2015-02-10
album: I Will Wait
  type: MusicAlbum
  date published: 2015-03-10
album: Spring Again
  type: MusicAlbum
  date published: 2015-04-10
album: Jump!
  type: MusicAlbum
  date published: 2015-05-10
album: Sebastian
  type: MusicAlbum
  date published: 2015-06-10
album: Here Comes The Rain
  type: MusicAlbum
  date published: 2015-07-10
album: Missing You
  type: MusicAlbum
  date published: 2015-08-15
album: Dragonfly
  type: MusicAlbum
  date published: 2015-09-10
album: Falling Leaves
  type: MusicAlbum
  date published: 2015-10-10
album: Is Winter Coming?
  type: MusicAlbum
  date published: 2015-11-10
album: Happy Happy
  type: MusicAlbum
  date published: 2015-12-10
album: Where?
  type: MusicAlbum
  date published: 2016-02-25
album: May Flower
  type: MusicAlbum
  date published: 2016-05-05
album: Nostalgia
  type: MusicAlbum
  date published: 2017-11-24
album: The Seasons
  type: MusicAlbum
  date published: 2019-01-04
album: Gayageum Healing
  type: MusicAlbum
  date published: 2020-03-31
  track: A Pleasant Step
    type: MusicRecording
    duration: PT2M31S
    duration ms: 151413
    explicit: false
    by artist: Hejin Han
    in album: Gayageum Healing
      type: MusicAlbum
      date published: 2020-03-31
    isrc code: KRB642010062
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-14T22:53:55+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x177a2771d59282f545371982096323ccb5df81c790b19727cf897371370758cb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958079
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958079
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRB642010062
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T00:21:05Z
    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 0x177a2771d59282f545371982096323ccb5df81c790b19727cf897371370758cb. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/KRB642010062 — a six-check JSON result.
      date published: 2026-07-15T00:21:05Z
    audio: A Pleasant Step
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 134.218
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.565
      additional property: Energy
        type: PropertyValue
        value: 0.251
      additional property: Speechiness
        type: PropertyValue
        value: 0.056
      additional property: Acousticness
        type: PropertyValue
        value: 0.968
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.897
      additional property: Liveness
        type: PropertyValue
        value: 0.106
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.36
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.076
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: Comfort Of The Wind
    type: MusicRecording
    duration: PT2M28S
    duration ms: 148465
    explicit: false
    by artist: Hejin Han
    in album: Gayageum Healing
      type: MusicAlbum
      date published: 2020-03-31
    isrc code: KRB642010063
    additional property: CopyrightID
    additional property: CopyrightStatus
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Comfort Of The Wind

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-03T01:26:33+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x6e5951fab77369ba58eeb4c13a605794f48be06f540f4ce2ca6645995918104c

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956474

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956474

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRB642010063

OTSTimestamp
type: PropertyValue
value: 2026-07-03T08:56:35Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5951fab77369ba58eeb4c13a605794f48be06f540f4ce2ca6645995918104c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/KRB642010063 — a six-check JSON result.
date published: 2026-07-03T08:56:35Z

Comfort Of The Wind
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 156.38
additional property: Musical Key
  type: PropertyValue
  value: 3
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 3
additional property: Danceability
  type: PropertyValue
  value: 0.482
additional property: Energy
  type: PropertyValue
  value: 0.339
additional property: Speechiness
  type: PropertyValue
  value: 0.208
additional property: Acousticness
  type: PropertyValue
  value: 0.985
additional property: Instrumentalness
  type: PropertyValue
  value: 0.925
additional property: Liveness
  type: PropertyValue
  value: 0.107
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.763
additional property: Loudness (dB)
  type: PropertyValue
  value: -16.781
additional property: Key Name
  type: PropertyValue
  value: Eb
additional property: Mode Name
  type: PropertyValue
  value: Major