Pith Number

pith:EQ3TRRMB

pith:2010:EQ3TRRMB7QDDN2AV7HCWDUJ37C

not attested not anchored not stored refs pending

Point- and arc-reaching sets of vertices in a digraph

B.D. Acharya, K.A. Germina, Kumar Abhishek, S.B. Rao, T. Zaslavsky

arxiv:1001.4213 v1 · 2010-01-24 · 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{EQ3TRRMB7QDDN2AV7HCWDUJ37C}

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	2026-05-18T01:02:14.570052Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

243738c581fc0636e815f9c561d13bf89c0898cce04ed8a0671704f45fad82fc

Aliases

arxiv: 1001.4213 · arxiv_version: 1001.4213v1 · doi: 10.48550/arxiv.1001.4213 · pith_short_12: EQ3TRRMB7QDD · pith_short_16: EQ3TRRMB7QDDN2AV · pith_short_8: EQ3TRRMB

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/EQ3TRRMB7QDDN2AV7HCWDUJ37C \
  | 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: 243738c581fc0636e815f9c561d13bf89c0898cce04ed8a0671704f45fad82fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1e3e6acefa5356d705f041342d0523ff5d13495b45f9df6223915704da7c7cd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2010-01-24T00:49:35Z",
    "title_canon_sha256": "5c135ef03615ff124015a78e2e312b16f23512fe43c93ff6f428f1d6445ea6e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.4213",
    "kind": "arxiv",
    "version": 1
  }
}