Pith Number

pith:WSJ5ZDCI

pith:2017:WSJ5ZDCIMFVLS47SQHAAEXKCYR

not attested not anchored not stored refs pending

Inductive tools for connected ribbon graphs, delta-matroids and multimatroids

Carolyn Chun, Deborah Chun, Steven D. Noble

arxiv:1702.07179 v2 · 2017-02-23 · 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{WSJ5ZDCIMFVLS47SQHAAEXKCYR}

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	2026-05-18T00:49:06.234072Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b493dc8c48616ab973f281c0025d42c45402adbcf72655e13e743fccbfa029df

Aliases

arxiv: 1702.07179 · arxiv_version: 1702.07179v2 · doi: 10.48550/arxiv.1702.07179 · pith_short_12: WSJ5ZDCIMFVL · pith_short_16: WSJ5ZDCIMFVLS47S · pith_short_8: WSJ5ZDCI

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/WSJ5ZDCIMFVLS47SQHAAEXKCYR \
  | 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: b493dc8c48616ab973f281c0025d42c45402adbcf72655e13e743fccbfa029df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "134d5d88506d0c34e5c85ba6e2a14056c8c822e3a6d2a11a3e41e7e16be9f21f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-02-23T11:24:36Z",
    "title_canon_sha256": "9fc7b6e90171487d2877acf194d4868299be0ac9fbe1cdfe20d25f1c9597683b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.07179",
    "kind": "arxiv",
    "version": 2
  }
}