Pith Number

pith:IK3KDX2N

pith:2013:IK3KDX2NMGZ4MZ66GDQBMKAH7T

not attested not anchored not stored refs pending

Homology of polyhedra and quadrangulations of surfaces

Serge Lawrencenko

arxiv:1308.2935 v1 · 2013-08-13 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IK3KDX2NMGZ4MZ66GDQBMKAH7T}

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	2026-05-18T03:15:58.171423Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42b6a1df4d61b3c667de30e0162807fccf674eca26d8ba916d18f5ff7093b2ad

Aliases

arxiv: 1308.2935 · arxiv_version: 1308.2935v1 · doi: 10.48550/arxiv.1308.2935 · pith_short_12: IK3KDX2NMGZ4 · pith_short_16: IK3KDX2NMGZ4MZ66 · pith_short_8: IK3KDX2N

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/IK3KDX2NMGZ4MZ66GDQBMKAH7T \
  | 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: 42b6a1df4d61b3c667de30e0162807fccf674eca26d8ba916d18f5ff7093b2ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6595573741ba70f1c117bff58825034f7a128181d801f12224f599360fec347",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-08-13T18:37:27Z",
    "title_canon_sha256": "7ad759a184fd107d9f424b2caf6afcec2b7e78f583ea1b79949b677fd10e6513"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.2935",
    "kind": "arxiv",
    "version": 1
  }
}