lullaby
type: MusicGroup
description: thumb|Lullaby by A lullaby (), or a cradle song, is a soothing song or piece of music that is usually played for (or sung to) children (for adults see music and sleep). The purposes of lullabies var
popularity: 4
followers: 27
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9d3f3651e4c1275aada7a1adbf338966ca0187c21a5a43dbf55870feb0b24e70
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954717
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954717
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f6a7fafa-1447-4719-b87c-5336f33481e8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f6a7fafa-1447-4719-b87c-5336f33481e8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f6a7fafa-1447-4719-b87c-5336f33481e8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T15:47:51Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3f3651e4c1275aada7a1adbf338966ca0187c21a5a43dbf55870feb0b24e70. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f6a7fafa-1447-4719-b87c-5336f33481e8.json and https://artists.proofprofile.net/proofs/artist/f6a7fafa-1447-4719-b87c-5336f33481e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T15:47:51Z
album: 오르골 태교 자장가 베스트
  type: MusicAlbum
  date published: 2018-04-10
album: 오르골 태교 자장가 베스트
  type: MusicAlbum
  date published: 2018-04-10
album: 잘자라 우리아기 태교자장가 20
  type: MusicAlbum
  date published: 2018-08-20
album: 우리아기 클래식 음악선물 오르골 어린이 태교동요 10
  type: MusicAlbum
  date published: 2018-09-05
album: 겨울 어린이 태교 자장가 피아노(어린이집,유치원)
  type: MusicAlbum
  date published: 2018-11-29
album: 피아노 어린이 태교동요 베스트 10곡
  type: MusicAlbum
  date published: 2018-12-13
album: 어린이집 유치원 자장가 태교음악 20곡
  type: MusicAlbum
  date published: 2018-12-14
album: 피아노 어린이 태교자장가 10곡
  type: MusicAlbum
  date published: 2018-12-17
album: 자장가 오르골 어린이 태교 베스트 15
  type: MusicAlbum
  date published: 2019-01-07
album: 겨울 어린이 자장가 피아노 10
  type: MusicAlbum
  date published: 2019-01-24
album: 겨울 어린이 자장가 피아노 10
  type: MusicAlbum
  date published: 2019-01-24
  track: 곰세마리
    type: MusicRecording
    duration: PT1M39S
    duration ms: 99343
    explicit: false
    by artist: lullaby
    in album: 겨울 어린이 자장가 피아노 10
      type: MusicAlbum
      date published: 2019-01-24
    isrc code: KRZ291903646
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T13:10:16+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa5b79b61096fd132a9474aaa48bae6e2d9c11775a4f8a851eeff59cb1267932b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958157
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958157
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRZ291903646
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T13:14:32Z
    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 0xa5b79b61096fd132a9474aaa48bae6e2d9c11775a4f8a851eeff59cb1267932b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/KRZ291903646.
      date published: 2026-07-15T13:14:32Z
    audio: 곰세마리
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 115.961
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.772
      additional property: Energy
        type: PropertyValue
        value: 0.169
      additional property: Speechiness
        type: PropertyValue
        value: 0.161
      additional property: Acousticness
        type: PropertyValue
        value: 0.978
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.975
      additional property: Liveness
        type: PropertyValue
        value: 0.116
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.691
      additional property: Loudness (dB)
        type: PropertyValue
        value: -21.664
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 오르골 어린이 태교 음악 베스트
  type: MusicAlbum
  date published: 2019-01-30