Pith Number

pith:MWONVN23

pith:2012:MWONVN23IZDSUIAPWXU2QIYB5W

not attested not anchored not stored refs pending

Comparing Background Subtraction Algorithms and Method of Car Counting

Ahmed Helmy, Gautam S. Thakur, Mohsen Ali, Pan Hui

arxiv:1202.0549 v1 · 2012-01-29 · 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{MWONVN23IZDSUIAPWXU2QIYB5W}

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	2026-05-18T04:03:17.907443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

659cdab75b46472a200fb5e9a82301eda32ccde0873abb8734b96d020da299fe

Aliases

arxiv: 1202.0549 · arxiv_version: 1202.0549v1 · doi: 10.48550/arxiv.1202.0549 · pith_short_12: MWONVN23IZDS · pith_short_16: MWONVN23IZDSUIAP · pith_short_8: MWONVN23

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/MWONVN23IZDSUIAPWXU2QIYB5W \
  | 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: 659cdab75b46472a200fb5e9a82301eda32ccde0873abb8734b96d020da299fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f78bef4e9ce17c95f8ad2588c3596ac02fa568a68a3f95c2782fbbf52caa5b6b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2012-01-29T19:19:33Z",
    "title_canon_sha256": "65f92e29e2effe8fce3d5cf45c714dfc9e7ecce76fee743563f072aa38e0e740"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.0549",
    "kind": "arxiv",
    "version": 1
  }
}