Pith Number

pith:UGO3TFPD

pith:2019:UGO3TFPDQPHEHOQFCKKP2EC4VL

not attested not anchored not stored refs pending

From Open Set to Closed Set: Counting Objects by Spatial Divide-and-Conquer

Chengxin Liu, Chunhua Shen, Haipeng Xiong, Hao Lu, Liang Liu, Zhiguo Cao

arxiv:1908.06473 v1 · 2019-08-15 · 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{UGO3TFPDQPHEHOQFCKKP2EC4VL}

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	2026-07-04T23:58:16.093551Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a19db995e383ce43ba051294fd105caaf97ed82655b7f609c434e020ad7ebe5b

Aliases

arxiv: 1908.06473 · arxiv_version: 1908.06473v1 · doi: 10.48550/arxiv.1908.06473 · pith_short_12: UGO3TFPDQPHE · pith_short_16: UGO3TFPDQPHEHOQF · pith_short_8: UGO3TFPD

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/UGO3TFPDQPHEHOQFCKKP2EC4VL \
  | 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: a19db995e383ce43ba051294fd105caaf97ed82655b7f609c434e020ad7ebe5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "105981fd08a200a7783564f3e5743dfc6b5a96f53f5e57ab708d55df0b74cd7d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-08-15T03:19:16Z",
    "title_canon_sha256": "b63bf19d81192dad746e65b5de2d0de01b4405a43e674c69c6c2a0648485aa07"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.06473",
    "kind": "arxiv",
    "version": 1
  }
}