Pith Number

pith:26V7CQVJ

pith:2013:26V7CQVJVJ2RVONKWN5DCKVETK

not attested not anchored not stored refs pending

A Stochastic Grammar for Natural Shapes

Pedro F. Felzenszwalb

arxiv:1303.2844 v1 · 2013-03-12 · 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{26V7CQVJVJ2RVONKWN5DCKVETK}

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	2026-05-18T02:30:47.801536Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7abf142a9aa751ab9aab37a312aa49aac8853a87a0250c9fd12a5e5a76adc74

Aliases

arxiv: 1303.2844 · arxiv_version: 1303.2844v1 · doi: 10.48550/arxiv.1303.2844 · pith_short_12: 26V7CQVJVJ2R · pith_short_16: 26V7CQVJVJ2RVONK · pith_short_8: 26V7CQVJ

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/26V7CQVJVJ2RVONKWN5DCKVETK \
  | 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: d7abf142a9aa751ab9aab37a312aa49aac8853a87a0250c9fd12a5e5a76adc74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d66b3d2a6a9488a780d86a0c78dd513d1ed5ea683018f523f26cf3c104b76b0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-03-12T11:23:47Z",
    "title_canon_sha256": "db79a15a3e3045397f34363df1c491f66b0e88779ea963438fb32eb324cc58ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.2844",
    "kind": "arxiv",
    "version": 1
  }
}