Pith Number

pith:V25ZOLKD

pith:2018:V25ZOLKDUHSMOUDVMJARLRSARD

not attested not anchored not stored refs pending

Equivalence of edge bicolored graphs on surfaces

Heather M. Russell, Oliver T. Dasbach

arxiv:1802.03506 v1 · 2018-02-10 · math.GT · 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{V25ZOLKDUHSMOUDVMJARLRSARD}

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	2026-05-18T00:23:51.354441Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aebb972d43a1e4c75075624115c64088fe7682b0d70e0d8ff8419d9d9916d271

Aliases

arxiv: 1802.03506 · arxiv_version: 1802.03506v1 · doi: 10.48550/arxiv.1802.03506 · pith_short_12: V25ZOLKDUHSM · pith_short_16: V25ZOLKDUHSMOUDV · pith_short_8: V25ZOLKD

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/V25ZOLKDUHSMOUDVMJARLRSARD \
  | 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: aebb972d43a1e4c75075624115c64088fe7682b0d70e0d8ff8419d9d9916d271

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a9151032e218524662397ef3680973dc59a9fdd92cde58f1354f673324b4ff3",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2018-02-10T02:48:20Z",
    "title_canon_sha256": "0aa4d51a858e8341bea1228095ab20ad79f0ed2c415e456195019de0022c8385"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.03506",
    "kind": "arxiv",
    "version": 1
  }
}