Pith Number

pith:SG5JBLB6

pith:2013:SG5JBLB6V6BJFPAVTGYDVB3KZW

not attested not anchored not stored refs pending

Edge-reflection positivity and weighted graph homomorphisms

Guus Regts

arxiv:1302.6497 v3 · 2013-02-26 · math.CO · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SG5JBLB6V6BJFPAVTGYDVB3KZW}

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	2026-05-18T02:42:46.736979Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91ba90ac3eaf8292bc1599b03a876acd972b42eb1d18f743624cabbc84aa3c5a

Aliases

arxiv: 1302.6497 · arxiv_version: 1302.6497v3 · doi: 10.48550/arxiv.1302.6497 · pith_short_12: SG5JBLB6V6BJ · pith_short_16: SG5JBLB6V6BJFPAV · pith_short_8: SG5JBLB6

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/SG5JBLB6V6BJFPAVTGYDVB3KZW \
  | 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: 91ba90ac3eaf8292bc1599b03a876acd972b42eb1d18f743624cabbc84aa3c5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7cadb3b015ca69e851a16b6e1643a07f7bd07905628c4dc177df0be7f9f429d",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-02-26T17:08:30Z",
    "title_canon_sha256": "c9c3061acb5bb6321c13361253f1932395d41690b676e396faeeda137d9048ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.6497",
    "kind": "arxiv",
    "version": 3
  }
}