Middle Child
type: MusicGroup
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: 3
followers: 41
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x955f58b196148f295b2b2bed6a4552245a8743df5e1518d3c1bd40f5af6fc171
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954618
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954618
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c90d8b28-cb3c-4352-aa70-633c8389ddf3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c90d8b28-cb3c-4352-aa70-633c8389ddf3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c90d8b28-cb3c-4352-aa70-633c8389ddf3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:05:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x955f58b196148f295b2b2bed6a4552245a8743df5e1518d3c1bd40f5af6fc171","name":"Middle Child","registered_at":"2026-06-20T22:29:28Z","symbol":"NIM1730761","token_address":"0xdf00a4665df552f4887a91813f8b9da209ecc3d0","type":"artist","uuid":"c90d8b28-cb3c-4352-aa70-633c8389ddf3"}
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 0x955f58b196148f295b2b2bed6a4552245a8743df5e1518d3c1bd40f5af6fc171. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c90d8b28-cb3c-4352-aa70-633c8389ddf3.json and https://artists.proofprofile.net/proofs/artist/c90d8b28-cb3c-4352-aa70-633c8389ddf3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:05:13Z
  text: {"copyright_id":"0x955f58b196148f295b2b2bed6a4552245a8743df5e1518d3c1bd40f5af6fc171","name":"Middle Child","registered_at":"2026-06-20T22:29:28Z","symbol":"NIM1730761","token_address":"0xdf00a4665df552f4887a91813f8b9da209ecc3d0","type":"artist","uuid":"c90d8b28-cb3c-4352-aa70-633c8389ddf3"}