Pith Number

pith:H6H2C34Z

pith:2021:H6H2C34Z3QKEUWH3C3B7QKSBGZ

not attested not anchored not stored refs pending

Image-Hashing-Based Anomaly Detection for Privacy-Preserving Online Proctoring

Basem Suleiman, Manoranjan Mohanty, Waheeb Yaqub

arxiv:2107.09373 v1 · 2021-07-20 · cs.CR · cs.CV · 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{H6H2C34Z3QKEUWH3C3B7QKSBGZ}

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	2026-07-05T02:59:29.224860Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f8fa16f99dc144a58fb16c3f82a41365e9b0c0adac93f7ad2880ec9ed137916

Aliases

arxiv: 2107.09373 · arxiv_version: 2107.09373v1 · doi: 10.48550/arxiv.2107.09373 · pith_short_12: H6H2C34Z3QKE · pith_short_16: H6H2C34Z3QKEUWH3 · pith_short_8: H6H2C34Z

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/H6H2C34Z3QKEUWH3C3B7QKSBGZ \
  | 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: 3f8fa16f99dc144a58fb16c3f82a41365e9b0c0adac93f7ad2880ec9ed137916

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b581804254cb4430a656ddc12a68aaa45787d273f00e28670950f4a9802d925e",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.HC"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2021-07-20T09:45:05Z",
    "title_canon_sha256": "743bf759ac73b4626b78333a27833032f28f1a9a7a9950b1731b8368f647368f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.09373",
    "kind": "arxiv",
    "version": 1
  }
}