Pith Number

pith:ZFP25L3P

pith:2021:ZFP25L3P7K55EYXRGW5IRB7YHH

not attested not anchored not stored refs pending

Birds Eye View Social Distancing Analysis System

Gil Zussman, Hongzhe Ye, Mingfei Sun, Zhengye Yang, Zihao Xiong, Zoran Kostic

arxiv:2112.07159 v2 · 2021-12-14 · cs.CV · cs.AI · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZFP25L3P7K55EYXRGW5IRB7YHH}

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	2026-07-05T03:55:51.176792Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c95faeaf6ffabbd262f135ba8887f839de631a2b5713b6598b4758eeab422e89

Aliases

arxiv: 2112.07159 · arxiv_version: 2112.07159v2 · doi: 10.48550/arxiv.2112.07159 · pith_short_12: ZFP25L3P7K55 · pith_short_16: ZFP25L3P7K55EYXR · pith_short_8: ZFP25L3P

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/ZFP25L3P7K55EYXRGW5IRB7YHH \
  | 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: c95faeaf6ffabbd262f135ba8887f839de631a2b5713b6598b4758eeab422e89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78d3e6b5ba2f8affec2fa16329c6f456cb29b9ebfbf3ef5f9415b756537b6e82",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.DC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-12-14T04:47:12Z",
    "title_canon_sha256": "a87053a7c96f111f73f32348815aae6e75df7ba2d35a2132d878ea42526a99f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.07159",
    "kind": "arxiv",
    "version": 2
  }
}