Cha So Yeon
type: MusicGroup
popularity: 5
followers: 1436
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xef2e480a8ab22b706b21aa7bba9918a501c82d4d31c3503f7ba47e3d8bdd0e47
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953899
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953899
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1395e7e5-81b5-4745-b749-b51dd832fdfb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1395e7e5-81b5-4745-b749-b51dd832fdfb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1395e7e5-81b5-4745-b749-b51dd832fdfb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:37:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xef2e480a8ab22b706b21aa7bba9918a501c82d4d31c3503f7ba47e3d8bdd0e47","name":"Cha So Yeon","registered_at":"2026-06-15T20:25:34Z","symbol":"NIM0822209","token_address":"0xda2d070b11a6b94a1572d6c08434bbaff3b9e5d4","type":"artist","uuid":"1395e7e5-81b5-4745-b749-b51dd832fdfb"}
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 0xef2e480a8ab22b706b21aa7bba9918a501c82d4d31c3503f7ba47e3d8bdd0e47. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1395e7e5-81b5-4745-b749-b51dd832fdfb.json and https://artists.proofprofile.net/proofs/artist/1395e7e5-81b5-4745-b749-b51dd832fdfb.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T06:37:25Z
  text: {"copyright_id":"0xef2e480a8ab22b706b21aa7bba9918a501c82d4d31c3503f7ba47e3d8bdd0e47","name":"Cha So Yeon","registered_at":"2026-06-15T20:25:34Z","symbol":"NIM0822209","token_address":"0xda2d070b11a6b94a1572d6c08434bbaff3b9e5d4","type":"artist","uuid":"1395e7e5-81b5-4745-b749-b51dd832fdfb"}
album: there's Nothing between us
  type: MusicAlbum
  date published: 2017-12-14
album: Fall in love
  type: MusicAlbum
  date published: 2018-03-22
album: Fall in love
  type: MusicAlbum
  date published: 2018-03-22
album: Rainy Days
  type: MusicAlbum
  date published: 2019-07-03
album: Rainy Days
  type: MusicAlbum
  date published: 2019-07-03
album: LIKE (Original Television Soundtrack) Pt. 2
  type: MusicAlbum
  date published: 2019-10-31
album: 웹드라마 LIKE (Original Television Soundtrack), Pt. 2
  type: MusicAlbum
  date published: 2019-10-31
album: I hope you're sad
  type: MusicAlbum
  date published: 2021-01-23
album: Only you
  type: MusicAlbum
  date published: 2021-02-14
album: Only you
  type: MusicAlbum
  date published: 2021-02-14
album: O baby why
  type: MusicAlbum
  date published: 2021-04-03
album: O baby why
  type: MusicAlbum
  date published: 2021-04-03
album: This Love
  type: MusicAlbum
  date published: 2021-06-16
album: This Love (with BrotherHo)
  type: MusicAlbum
  date published: 2021-06-16
album: Self Gardening
  type: MusicAlbum
  date published: 2021-09-02
album: Self Gardening
  type: MusicAlbum
  date published: 2021-09-02
album: U-Do
  type: MusicAlbum
  date published: 2022-03-11
album: U-Do
  type: MusicAlbum
  date published: 2022-03-11
album: Beautiful Now (Original Television Soundtrack) Pt. 6
  type: MusicAlbum
  date published: 2022-06-05
  track: This Love
    type: MusicRecording
    duration: PT4M4S
    duration ms: 244119
    explicit: false
    by artist: Cha So Yeon
    in album: Beautiful Now (Original Television Soundtrack) Pt. 6
      type: MusicAlbum
      date published: 2022-06-05
    isrc code: KRF702200239
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T12:09:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa84105b85bbf6c17c53e6aba628b9ecf6ad6c9a15da11a5aa4da3df49a22c1f1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958878
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958878
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRF702200239
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T12:32:15Z
    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 0xa84105b85bbf6c17c53e6aba628b9ecf6ad6c9a15da11a5aa4da3df49a22c1f1. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/KRF702200239 — a six-check JSON result.
      date published: 2026-07-20T12:32:15Z
    audio: This Love
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.014
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.639
      additional property: Energy
        type: PropertyValue
        value: 0.567
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.367
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.155
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.658
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.04
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: You’ve changed
  type: MusicAlbum
  date published: 2024-06-05
album: You’ve changed
  type: MusicAlbum
  date published: 2024-06-05
track: This night (feat. Cha So Yeon, woojun & RYUKIE)
  type: MusicRecording
  duration: PT2M58S
  duration ms: 178703
  explicit: false
  by artist: merrymerryseoul
  by artist: Cha So Yeon
  by artist: woojun
  by artist: RYUKIE
  in album: Standing in the middle of somewhere
    type: MusicAlbum
    date published: 2023-02-08
  isrc code: KRMIM2329974
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  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: This night (feat. Cha So Yeon, woojun & RYUKIE)
track: You are like (Art. RYUKIE) (Feat. Cha Soyeon, IFCHAN)

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-22T04:45:58+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xd34994b236c379e4c46db3360832088fd67a74e757fba082f7172ac756e9b76f

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956304

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956304

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRMIM2329974

OTSTimestamp
type: PropertyValue
value: 2026-07-02T03:55:08Z

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 0xd34994b236c379e4c46db3360832088fd67a74e757fba082f7172ac756e9b76f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/KRMIM2329974 — a six-check JSON result.
date published: 2026-07-02T03:55:08Z

This night (feat. Cha So Yeon, woojun & RYUKIE)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 111.823
additional property: Musical Key
  type: PropertyValue
  value: 9
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.445
additional property: Energy
  type: PropertyValue
  value: 0.436
additional property: Speechiness
  type: PropertyValue
  value: 0.094
additional property: Acousticness
  type: PropertyValue
  value: 0.539
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.359
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.386
additional property: Loudness (dB)
  type: PropertyValue
  value: -10.808
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Major

You are like (Art. RYUKIE) (Feat. Cha Soyeon, IFCHAN)
type: MusicRecording
duration: PT3M5S
duration ms: 185294
explicit: false
by artist: Anonymous Artists (어나니머스 아티스트)
by artist: Cha So Yeon
by artist: IFCHAN
in album: ARTIST. RYUKIE
  type: MusicAlbum
  date published: 2023-10-11
genre: k-rap
isrc code: ZZA0P2311233
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T09:20:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xed35e64c737bb7cc7a7a63f1fac500696f9e1e44867cbb4c08bf3d926039c274
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960240
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960240
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZZA0P2311233
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T09:57:33Z
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 0xed35e64c737bb7cc7a7a63f1fac500696f9e1e44867cbb4c08bf3d926039c274. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/ZZA0P2311233 — a six-check JSON result.
  date published: 2026-07-30T09:57:33Z
audio: You are like (Art. RYUKIE) (Feat. Cha Soyeon, IFCHAN)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.6
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.68
  additional property: Energy
    type: PropertyValue
    value: 0.47
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.751
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.159
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.408
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.405
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major