Pith Number

pith:G5TQAC2N

pith:2010:G5TQAC2NSH7RWJJJVF2A2SARFF

not attested not anchored not stored refs pending

Split digraphs

M. Drew Lamar

arxiv:1005.2452 v3 · 2010-05-14 · cs.DM · 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{G5TQAC2NSH7RWJJJVF2A2SARFF}

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	2026-05-18T02:53:27.442036Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3767000b4d91ff1b2529a9740d48112940d30d0af15359f8939c4445390ebc3a

Aliases

arxiv: 1005.2452 · arxiv_version: 1005.2452v3 · doi: 10.48550/arxiv.1005.2452 · pith_short_12: G5TQAC2NSH7R · pith_short_16: G5TQAC2NSH7RWJJJ · pith_short_8: G5TQAC2N

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/G5TQAC2NSH7RWJJJVF2A2SARFF \
  | 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: 3767000b4d91ff1b2529a9740d48112940d30d0af15359f8939c4445390ebc3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62713949567f1b00650b9f49e36eaa1dabada64a01da74bde67b6313f6f9ac5a",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2010-05-14T04:13:16Z",
    "title_canon_sha256": "a9bf08d3c872ecb6908b6cff86be1b5f4d76f9fefb8f082bb7f0cc14f13c7d09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.2452",
    "kind": "arxiv",
    "version": 3
  }
}