Pith Number

pith:WIWAAH3D

pith:2012:WIWAAH3DF7ZQ5HRR4H6Y4TOXB7

not attested not anchored not stored refs pending

Planarizing an Unknown Surface

Anastasios Sidiropoulos, Yury Makarychev

arxiv:1206.4898 v1 · 2012-06-21 · cs.DS · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WIWAAH3DF7ZQ5HRR4H6Y4TOXB7}

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	2026-05-18T03:52:53.997279Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b22c001f632ff30e9e31e1fd8e4dd70ff49fd4da446877029c18185248e8fc74

Aliases

arxiv: 1206.4898 · arxiv_version: 1206.4898v1 · doi: 10.48550/arxiv.1206.4898 · pith_short_12: WIWAAH3DF7ZQ · pith_short_16: WIWAAH3DF7ZQ5HRR · pith_short_8: WIWAAH3D

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/WIWAAH3DF7ZQ5HRR4H6Y4TOXB7 \
  | 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: b22c001f632ff30e9e31e1fd8e4dd70ff49fd4da446877029c18185248e8fc74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f5145c9e544c3d929fa78ffcca59dde82abd9536f2521ab95ced70b6825dbb5",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2012-06-21T14:38:30Z",
    "title_canon_sha256": "5c1125aa96931dc7df223e57f5e173ee21cabc31c34fcfec32ddf99c14438f41"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.4898",
    "kind": "arxiv",
    "version": 1
  }
}