Pith Number

pith:4BWXDCGE

pith:2007:4BWXDCGEQG4MYZ6KEOHX4NR645

not attested not anchored not stored refs pending

Intersection Numbers of Polygon Spaces

Jos\'e Agapito, Leonor Godinho

arxiv:0709.2097 v2 · 2007-09-13 · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4BWXDCGEQG4MYZ6KEOHX4NR645}

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	2026-05-18T04:09:14.547803Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e06d7188c481b8cc67ca238f7e363ee74ad16bb3c9c6c0c8bedcd57004bb6e58

Aliases

arxiv: 0709.2097 · arxiv_version: 0709.2097v2 · doi: 10.48550/arxiv.0709.2097 · pith_short_12: 4BWXDCGEQG4M · pith_short_16: 4BWXDCGEQG4MYZ6K · pith_short_8: 4BWXDCGE

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/4BWXDCGEQG4MYZ6KEOHX4NR645 \
  | 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: e06d7188c481b8cc67ca238f7e363ee74ad16bb3c9c6c0c8bedcd57004bb6e58

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7aa411e15ebfc00cc5dc07ac34afcae3f6d6b56bed5d2aa955244ced4b5d5b77",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.SG",
    "submitted_at": "2007-09-13T15:41:24Z",
    "title_canon_sha256": "88481453661671e7d7376e25e312f9e05075391a5d9b65f11d10c7f5e35e49f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.2097",
    "kind": "arxiv",
    "version": 2
  }
}