Pith Number

pith:TLW5GYRM

pith:2021:TLW5GYRMXUZAGCIQT4M6MENKI3

not attested not anchored not stored refs pending

A Visual Analytics Approach to Facilitate the Proctoring of Online Exams

Haotian Li, Huamin Qu, Huan Wei, Min Xu, Yong Wang

arxiv:2101.07990 v1 · 2021-01-20 · cs.HC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TLW5GYRMXUZAGCIQT4M6MENKI3}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T02:08:24.145494Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9aedd3622cbd320309109f19e611aa46fe1006da0089af8694fc7226203c266a

Aliases

arxiv: 2101.07990 · arxiv_version: 2101.07990v1 · doi: 10.48550/arxiv.2101.07990 · pith_short_12: TLW5GYRMXUZA · pith_short_16: TLW5GYRMXUZAGCIQ · pith_short_8: TLW5GYRM

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/TLW5GYRMXUZAGCIQT4M6MENKI3 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 9aedd3622cbd320309109f19e611aa46fe1006da0089af8694fc7226203c266a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4bd5e2c6928dc95286d858640398f101021b21bdeeaba8f6f7be51bb8f01fbe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2021-01-20T06:27:40Z",
    "title_canon_sha256": "269e9803c5adcb780f66b0a190dbee62152ff2b6de1a21b5be445ea1645656de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.07990",
    "kind": "arxiv",
    "version": 1
  }
}