Hayoung Song
type: MusicGroup
popularity: 26
followers: 2507
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1fa178b8bbc22219478c462e5ed8b7f85c110d5d7fe7eb880fe3c8ceb9eb6d50
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4005760b-23c3-46bd-a54e-91ae67fab3f5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4005760b-23c3-46bd-a54e-91ae67fab3f5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4005760b-23c3-46bd-a54e-91ae67fab3f5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1fa178b8bbc22219478c462e5ed8b7f85c110d5d7fe7eb880fe3c8ceb9eb6d50","name":"Hayoung Song","registered_at":"2026-06-11T17:31:55Z","symbol":"NIM0083202","token_address":"0x1cabae0d727e7a9a15354e1b2c509ed8577712c2","type":"artist","uuid":"4005760b-23c3-46bd-a54e-91ae67fab3f5"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa178b8bbc22219478c462e5ed8b7f85c110d5d7fe7eb880fe3c8ceb9eb6d50. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4005760b-23c3-46bd-a54e-91ae67fab3f5.json and https://artists.proofprofile.net/proofs/artist/4005760b-23c3-46bd-a54e-91ae67fab3f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x1fa178b8bbc22219478c462e5ed8b7f85c110d5d7fe7eb880fe3c8ceb9eb6d50","name":"Hayoung Song","registered_at":"2026-06-11T17:31:55Z","symbol":"NIM0083202","token_address":"0x1cabae0d727e7a9a15354e1b2c509ed8577712c2","type":"artist","uuid":"4005760b-23c3-46bd-a54e-91ae67fab3f5"}
album: still love me? (My Sweden Laundry #2)
  type: MusicAlbum
  date published: 2022-03-24
album: step by together: with U
  type: MusicAlbum
  date published: 2024-10-02
  track: Stay together all day - Instrumental
    type: MusicRecording
    duration: PT3M17S
    duration ms: 197573
    explicit: false
    by artist: Hayoung Song
    in album: step by together: with U
      type: MusicAlbum
      date published: 2024-10-02
    isrc code: KRB472402102
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T16:55:20+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
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    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRB472402102
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2035a7d49bd693db7878b2708a85449cbb53442b205d293d4795c01e72f8bbbb. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/KRB472402102.
      date published: 2026-07-05T19:27:56Z
    audio: Stay together all day - Instrumental
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 90.011
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.714
      additional property: Energy
        type: PropertyValue
        value: 0.322
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.207
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.102
      additional property: Liveness
        type: PropertyValue
        value: 0.097
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.201
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.713
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: BREWING LOVE, Pt. 8 (Original Soundtrack)
  type: MusicAlbum
  date published: 2024-11-26
  track: Come Closer Like Spring - Instrumental
    type: MusicRecording
    duration: PT3M24S
    duration ms: 204626
    explicit: false
    by artist: Hayoung Song
    in album: BREWING LOVE, Pt. 8 (Original Soundtrack)
      type: MusicAlbum
      date published: 2024-11-26
    isrc code: KRB472403238
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T01:21:46+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6cbeb12525a59ac479853573056bc5c7e4f9a1a65f27ce3597c8966c5b70722d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956857
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRB472403238
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:26:17Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cbeb12525a59ac479853573056bc5c7e4f9a1a65f27ce3597c8966c5b70722d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/KRB472403238.
      date published: 2026-07-06T01:26:17Z
    audio: Come Closer Like Spring - Instrumental
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.012
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.711
      additional property: Energy
        type: PropertyValue
        value: 0.621
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.344
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.042
      additional property: Liveness
        type: PropertyValue
        value: 0.218
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: I Have a Cat (Kim Seong-geun's Winter Vacation X SONG HA YOUNG) [Original Soundtrack]

Valence (Positivity)
type: PropertyValue
value: 0.359

Loudness (dB)
type: PropertyValue
value: -5.746

Key Name
type: PropertyValue
value: Eb

Mode Name
type: PropertyValue
value: Major

I Have a Cat (Kim Seong-geun's Winter Vacation X SONG HA YOUNG) [Original Soundtrack]
type: MusicAlbum
date published: 2025-03-07