Pith Number

pith:RSHAOMEG

pith:2009:RSHAOMEGPUGUM4Y4MPXZYT33XO

not attested not anchored not stored refs pending

A two-level logic approach to reasoning about computations

Andrew Gacek, Dale Miller, Gopalan Nadathur

arxiv:0911.2993 v2 · 2009-11-16 · cs.LO · cs.PL

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RSHAOMEGPUGUM4Y4MPXZYT33XO}

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	2026-05-18T04:41:35.867751Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c8e0730867d0d46731c63ef9c4f7bbb8e79f0dd02fceee497dd82aa534a9d83

Aliases

arxiv: 0911.2993 · arxiv_version: 0911.2993v2 · doi: 10.48550/arxiv.0911.2993 · pith_short_12: RSHAOMEGPUGU · pith_short_16: RSHAOMEGPUGUM4Y4 · pith_short_8: RSHAOMEG

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/RSHAOMEGPUGUM4Y4MPXZYT33XO \
  | 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: 8c8e0730867d0d46731c63ef9c4f7bbb8e79f0dd02fceee497dd82aa534a9d83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93c30f32476cf3242e3be5533c2e7164644b4e657306321fb251124d8c3328fa",
    "cross_cats_sorted": [
      "cs.PL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2009-11-16T09:56:44Z",
    "title_canon_sha256": "210ee96a9333982e7ab8585558813c61445f96298169d05b5ff22185d249c13d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.2993",
    "kind": "arxiv",
    "version": 2
  }
}