Middle Child
type: MusicGroup
genre: kizomba
description: "Middle Child" (Stylized in all caps) in is a song by American rapper J. Cole. The song was released on January 23, 2019, through Dreamville Records, Roc Nation and Interscope Records, as the first si
popularity: 8
followers: 82
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xadf196d866b8afbd603e2c35d584dd5b0da1e3100198c90b8cd6009c7a62c53d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cf1a3027-629d-41fb-a52d-b1ecc7100ef9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cf1a3027-629d-41fb-a52d-b1ecc7100ef9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cf1a3027-629d-41fb-a52d-b1ecc7100ef9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xadf196d866b8afbd603e2c35d584dd5b0da1e3100198c90b8cd6009c7a62c53d","name":"Middle Child","registered_at":"2026-06-21T00:16:52Z","symbol":"NIM1759878","token_address":"0x9da5f8fc1b2b4baa1b94891f859746c86f0b8d51","type":"artist","uuid":"cf1a3027-629d-41fb-a52d-b1ecc7100ef9"}
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 0xadf196d866b8afbd603e2c35d584dd5b0da1e3100198c90b8cd6009c7a62c53d. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cf1a3027-629d-41fb-a52d-b1ecc7100ef9.json and https://artists.proofprofile.net/proofs/artist/cf1a3027-629d-41fb-a52d-b1ecc7100ef9.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0xadf196d866b8afbd603e2c35d584dd5b0da1e3100198c90b8cd6009c7a62c53d","name":"Middle Child","registered_at":"2026-06-21T00:16:52Z","symbol":"NIM1759878","token_address":"0x9da5f8fc1b2b4baa1b94891f859746c86f0b8d51","type":"artist","uuid":"cf1a3027-629d-41fb-a52d-b1ecc7100ef9"}
album: Curfew
  type: MusicAlbum
  date published: 2021-07-31
album: Moving on
  type: MusicAlbum
  date published: 2021-09-30
album: 45
  type: MusicAlbum
  date published: 2022-03-03
album: R.T.G.
  type: MusicAlbum
  date published: 2022-07-23
album: Raba
  type: MusicAlbum
  date published: 2023-08-04
album: Waka Pass (Radio Edit)
  type: MusicAlbum
  date published: 2023-09-01
album: FOREVER
  type: MusicAlbum
  date published: 2023-10-27
album: EVOLVE
  type: MusicAlbum
  date published: 2024-03-03
album: Cause & Effect
  type: MusicAlbum
  date published: 2024-11-10
album: REG-U-LAR
  type: MusicAlbum
  date published: 2025-03-10