Pith Number

pith:4CAF4KL5

pith:2022:4CAF4KL5QWDGE75ZA4HDRQQRKJ

not attested not anchored not stored refs pending

DifferSketching: How Differently Do People Sketch 3D Objects?

Chufeng Xiao, Hongbo Fu, Jing Liao, Wanchao Su, Yi-Zhe Song, Zhouhui Lian

arxiv:2209.08791 v1 · 2022-09-19 · cs.CV · cs.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4CAF4KL5QWDGE75ZA4HDRQQRKJ}

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	2026-07-05T04:58:46.084113Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0805e297d8586627fb9070e38c211527afb6eee120e248b37e15ed8744bdf38

Aliases

arxiv: 2209.08791 · arxiv_version: 2209.08791v1 · doi: 10.48550/arxiv.2209.08791 · pith_short_12: 4CAF4KL5QWDG · pith_short_16: 4CAF4KL5QWDGE75Z · pith_short_8: 4CAF4KL5

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/4CAF4KL5QWDGE75ZA4HDRQQRKJ \
  | 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: e0805e297d8586627fb9070e38c211527afb6eee120e248b37e15ed8744bdf38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b52292d199792370a3985f04ecd9c493ab181c51deed631b2d25b4f09156031f",
    "cross_cats_sorted": [
      "cs.GR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2022-09-19T06:52:18Z",
    "title_canon_sha256": "de73557cb80082dd1a5903124e3a225f6e1db2f6b97f2d2dac7d345efd72bf9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.08791",
    "kind": "arxiv",
    "version": 1
  }
}