Pith Number

pith:AKWMH35Z

pith:2017:AKWMH35ZTSQ36UBHHK3MDESU6C

not attested not anchored not stored refs pending

Direction-aware Spatial Context Features for Shadow Detection

Chi-Wing Fu, Jing Qin, Lei Zhu, Pheng-Ann Heng, Xiaowei Hu

arxiv:1712.04142 v2 · 2017-12-12 · 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{AKWMH35ZTSQ36UBHHK3MDESU6C}

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	2026-07-05T01:03:05.570596Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02acc3efb99ca1bf50273ab6c19254f09f42a6c48b8e87a3f7e1b195885d0621

Aliases

arxiv: 1712.04142 · arxiv_version: 1712.04142v2 · doi: 10.48550/arxiv.1712.04142 · pith_short_12: AKWMH35ZTSQ3 · pith_short_16: AKWMH35ZTSQ36UBH · pith_short_8: AKWMH35Z

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/AKWMH35ZTSQ36UBHHK3MDESU6C \
  | 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: 02acc3efb99ca1bf50273ab6c19254f09f42a6c48b8e87a3f7e1b195885d0621

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4904f0e82459d67e3cea23b392d5aef0c73597dd7d026ddd6955f96f1f8f690c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-12-12T06:29:51Z",
    "title_canon_sha256": "7e6023ea1313f33943ba90f73bf6e33c8792bbade04d6cfa0f7a3117ca3435a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.04142",
    "kind": "arxiv",
    "version": 2
  }
}