Pith Number

pith:PF2B5WTO

pith:2011:PF2B5WTOTPRUIVBCZF7KIAH4NE

not attested not anchored not stored refs pending

Planar Pixelations and Image Recognition

Brandon Rowekamp

arxiv:1105.2831 v1 · 2011-05-13 · math.DG · cs.CG · 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{PF2B5WTOTPRUIVBCZF7KIAH4NE}

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	2026-05-18T04:22:01.970213Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79741eda6e9be3445422c97ea400fc691b296662713ce3dadb206b3f9c345857

Aliases

arxiv: 1105.2831 · arxiv_version: 1105.2831v1 · doi: 10.48550/arxiv.1105.2831 · pith_short_12: PF2B5WTOTPRU · pith_short_16: PF2B5WTOTPRUIVBC · pith_short_8: PF2B5WTO

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/PF2B5WTOTPRUIVBCZF7KIAH4NE \
  | 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: 79741eda6e9be3445422c97ea400fc691b296662713ce3dadb206b3f9c345857

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e5bb907cdec0a48df97a03e54c737608ba4da77b0ceee02387011b1f67a0568",
    "cross_cats_sorted": [
      "cs.CG",
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2011-05-13T20:21:09Z",
    "title_canon_sha256": "d63d4099d26892150fe0756b2658c7780c5ccb88e5c2697fad8071051c11b449"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.2831",
    "kind": "arxiv",
    "version": 1
  }
}