Sierra McClain
type: MusicGroup
description: Sierra Aylina McClain (born March 16, 1994) is an American actress and singer. As an actress, she was first recognized for her role as Sierra in Daddy's Little Girls (2007). She had her breakthrough a
popularity: 26
followers: 940
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe46ce543ba029a53d1d229abdac4f05440e3cd4e22d06e082d0dede8c7d2c39e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e49cbc94-9274-4bb4-8bc3-a9388b1598c5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e49cbc94-9274-4bb4-8bc3-a9388b1598c5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e49cbc94-9274-4bb4-8bc3-a9388b1598c5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe46ce543ba029a53d1d229abdac4f05440e3cd4e22d06e082d0dede8c7d2c39e","name":"Sierra McClain","registered_at":"2026-06-12T18:33:12Z","symbol":"NIM0337519","token_address":"0x630053e2818952721269f7bdb39373ecc09b4a51","type":"artist","uuid":"e49cbc94-9274-4bb4-8bc3-a9388b1598c5"}
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 0xe46ce543ba029a53d1d229abdac4f05440e3cd4e22d06e082d0dede8c7d2c39e. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e49cbc94-9274-4bb4-8bc3-a9388b1598c5.json and https://artists.proofprofile.net/proofs/artist/e49cbc94-9274-4bb4-8bc3-a9388b1598c5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xe46ce543ba029a53d1d229abdac4f05440e3cd4e22d06e082d0dede8c7d2c39e","name":"Sierra McClain","registered_at":"2026-06-12T18:33:12Z","symbol":"NIM0337519","token_address":"0x630053e2818952721269f7bdb39373ecc09b4a51","type":"artist","uuid":"e49cbc94-9274-4bb4-8bc3-a9388b1598c5"}