Pith Number

pith:DPQDU6YN

pith:2013:DPQDU6YNFPUH6EV5ZWIKJFCSR6

not attested not anchored not stored refs pending

Applications in Enumerative Combinatorics of Infinite Weighted Automata and Graphs

Andr\'es L. Ram\'irez, Jos\'e L. Ram\'irez, Rodrigo De Castro

arxiv:1310.2449 v2 · 2013-10-09 · cs.DM · cs.FL · 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{DPQDU6YNFPUH6EV5ZWIKJFCSR6}

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	2026-05-18T03:03:46.817345Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1be03a7b0d2be87f12bdcd90a494528fb7418dbfe98539be5eedec56b018c6d5

Aliases

arxiv: 1310.2449 · arxiv_version: 1310.2449v2 · doi: 10.48550/arxiv.1310.2449 · pith_short_12: DPQDU6YNFPUH · pith_short_16: DPQDU6YNFPUH6EV5 · pith_short_8: DPQDU6YN

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/DPQDU6YNFPUH6EV5ZWIKJFCSR6 \
  | 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: 1be03a7b0d2be87f12bdcd90a494528fb7418dbfe98539be5eedec56b018c6d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f59d31d7f262eaa86c836b882a26964ee6b987c9b0f6a619ce629b0d89a7304",
    "cross_cats_sorted": [
      "cs.FL",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2013-10-09T12:15:19Z",
    "title_canon_sha256": "5fae48e1f51267166ba92833107bb897b4ed0efeb08ea2303672a20faa6ebe54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.2449",
    "kind": "arxiv",
    "version": 2
  }
}