Pith Number

pith:IFU37O4G

pith:2019:IFU37O4GJZLQNDUGRZ3WISHOG3

not attested not anchored not stored refs pending

Appearance invariant Entry-Exit matching using visual soft biometric traits

P Nagabhushan, Vinay Kumar V

arxiv:1909.05145 v1 · 2019-08-26 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IFU37O4GJZLQNDUGRZ3WISHOG3}

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	2026-07-05T00:04:03.555072Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4169bfbb864e57068e868e776448ee36c96ad0ea58f85ad397ff67d54413317a

Aliases

arxiv: 1909.05145 · arxiv_version: 1909.05145v1 · doi: 10.48550/arxiv.1909.05145 · pith_short_12: IFU37O4GJZLQ · pith_short_16: IFU37O4GJZLQNDUG · pith_short_8: IFU37O4G

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/IFU37O4GJZLQNDUGRZ3WISHOG3 \
  | 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: 4169bfbb864e57068e868e776448ee36c96ad0ea58f85ad397ff67d54413317a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d68dd564690ba4d83d67fde9f61f2de33c89b8f965cfcc1c60a79ae17c836edd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-08-26T07:04:58Z",
    "title_canon_sha256": "6b7d04239aedd48c9d937f1862f764eea4409b91f01629a5907ac86c232aac70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.05145",
    "kind": "arxiv",
    "version": 1
  }
}