Happy Children
type: MusicGroup
genre: children's music
genre: lullaby
popularity: 5
followers: 465
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x410d33e8ee8952782b3c02445c8a9568b2e85c4dc2878a0fff2132b6b28633e1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e7327983-74e9-4f98-a0c7-d06cebc03575.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e7327983-74e9-4f98-a0c7-d06cebc03575.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e7327983-74e9-4f98-a0c7-d06cebc03575
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x410d33e8ee8952782b3c02445c8a9568b2e85c4dc2878a0fff2132b6b28633e1","name":"Happy Children","registered_at":"2026-06-21T09:21:31Z","symbol":"NIM1887098","token_address":"0x85e6d9f6b0ab85f4a74ee0e77b846c6fc8b8b107","type":"artist","uuid":"e7327983-74e9-4f98-a0c7-d06cebc03575"}
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 0x410d33e8ee8952782b3c02445c8a9568b2e85c4dc2878a0fff2132b6b28633e1. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e7327983-74e9-4f98-a0c7-d06cebc03575.json and https://artists.proofprofile.net/proofs/artist/e7327983-74e9-4f98-a0c7-d06cebc03575.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0x410d33e8ee8952782b3c02445c8a9568b2e85c4dc2878a0fff2132b6b28633e1","name":"Happy Children","registered_at":"2026-06-21T09:21:31Z","symbol":"NIM1887098","token_address":"0x85e6d9f6b0ab85f4a74ee0e77b846c6fc8b8b107","type":"artist","uuid":"e7327983-74e9-4f98-a0c7-d06cebc03575"}
album: 101 Children's Songs & Nursery Rhymes, Vol.2
  type: MusicAlbum
  date published: 2011-04-01
  track: No More Monkeys Jumping on the Bed/ If You're Happy and You Want to Know It/ The Animals Went in Two By Two/ Joe Crow/ The Ginger Bread man - Medley
    type: MusicRecording
    duration: PT4M44S
    duration ms: 284653
    explicit: false
    by artist: Happy Children
    in album: 101 Children's Songs & Nursery Rhymes, Vol.2
      type: MusicAlbum
      date published: 2011-04-01
    genre: children's music
    genre: lullaby
    isrc code: NLG620459980
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T16:49:43+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5168480eac7ba135af174076bfafe968d35c03845613b78f764fcb5515eda966
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG620459980
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0x5168480eac7ba135af174076bfafe968d35c03845613b78f764fcb5515eda966. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NLG620459980 — a six-check JSON result.
      date published: 2026-07-05T01:12:41Z
    audio: No More Monkeys Jumping on the Bed/ If You're Happy and You Want to Know It/ The Animals Went in Two By Two/ Joe Crow/ The Ginger Bread man - Medley
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.956
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.807
      additional property: Energy
        type: PropertyValue
        value: 0.457
      additional property: Speechiness
        type: PropertyValue
        value: 0.054
      additional property: Acousticness
        type: PropertyValue
        value: 0.215
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.051
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.428
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.741
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major