Cheryl Harris
type: MusicGroup
description: Cheryl I. Harris is an American legal scholar and critical race theorist. She is a professor of civil rights and civil liberties and the Rosalinde and Arthur Gilbert Foundation Chair at the University
popularity: 23
followers: 203
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb32e7a5a80ff5b627c14ad758be372de5133ee77d847645b7459334f51b71e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/523e6a8a-2a2e-4d7f-a272-9be163cbb9ef.json and https://artists.proofprofile.net/proofs/artist/523e6a8a-2a2e-4d7f-a272-9be163cbb9ef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
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track: Playing Possum (feat. Cheryl Harris & Keorapetse Kgositsile)

Playing Possum (feat. Cheryl Harris & Keorapetse Kgositsile)
type: MusicRecording
duration: PT1M34S
duration ms: 94986
explicit: false
by artist: Earl Sweatshirt
by artist: Cheryl Harris
by artist: Keorapetse Kgositsile
in album: Some Rap Songs
  type: MusicAlbum
  date published: 2018-11-30
genre: hip-hop
genre: rap
genre: underground-hip-hop
genre: alternative-hip-hop
genre: drumless-hip-hop
genre: experimental-hip-hop
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  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
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  date published: 2026-06-13T12:47:07Z
audio: Playing Possum (feat. Cheryl Harris & Keorapetse Kgositsile)
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