Pith Number

pith:5O6GPCHR

pith:2013:5O6GPCHRWL2D6EKQ7EYAQLK27B

not attested not anchored not stored refs pending

Ehrenfeucht-Fraisse Games on Omega-Terms

Manfred Kufleitner, Martin Huschenbett

arxiv:1310.3195 v1 · 2013-10-11 · cs.FL · cs.LO · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5O6GPCHRWL2D6EKQ7EYAQLK27B}

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	2026-05-18T03:10:44.756604Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ebbc6788f1b2f43f1150f930082d5af85a9d7c9cfcd99702f11c84e71d40ffaa

Aliases

arxiv: 1310.3195 · arxiv_version: 1310.3195v1 · doi: 10.48550/arxiv.1310.3195 · pith_short_12: 5O6GPCHRWL2D · pith_short_16: 5O6GPCHRWL2D6EKQ · pith_short_8: 5O6GPCHR

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/5O6GPCHRWL2D6EKQ7EYAQLK27B \
  | 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: ebbc6788f1b2f43f1150f930082d5af85a9d7c9cfcd99702f11c84e71d40ffaa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aeefe7626e10d12e7343122669c7a9eac438162584d19eb1804425ccf7170f85",
    "cross_cats_sorted": [
      "cs.LO",
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2013-10-11T16:57:22Z",
    "title_canon_sha256": "5fb314c7b24c3029486897641182b1e55dc0bc3ba5b98a2190988d4f5c403fa7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.3195",
    "kind": "arxiv",
    "version": 1
  }
}