Pith Number

pith:5BWNCC6B

pith:2011:5BWNCC6BYX7B6UIYPQGEYTT73G

not attested not anchored not stored refs pending

A functional interpretation for nonstandard arithmetic

Benno van den Berg, Eyvind Briseid, Pavol Safarik

arxiv:1109.3103 v2 · 2011-09-14 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5BWNCC6BYX7B6UIYPQGEYTT73G}

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	2026-05-18T03:50:37.587436Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e86cd10bc1c5fe1f51187c0c4c4e7fd98e7f5af2878f430cd895f942c2e41363

Aliases

arxiv: 1109.3103 · arxiv_version: 1109.3103v2 · doi: 10.48550/arxiv.1109.3103 · pith_short_12: 5BWNCC6BYX7B · pith_short_16: 5BWNCC6BYX7B6UIY · pith_short_8: 5BWNCC6B

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/5BWNCC6BYX7B6UIYPQGEYTT73G \
  | 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: e86cd10bc1c5fe1f51187c0c4c4e7fd98e7f5af2878f430cd895f942c2e41363

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc99ce9b96a3178ebbb483d9c8356d7ffc4975af8637eea7b04e7602e4ba9a8f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2011-09-14T15:02:53Z",
    "title_canon_sha256": "d4c2ae0ce56c54fa136d3259c67b968910559d677971ffbc10e751c1c6d2fb60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.3103",
    "kind": "arxiv",
    "version": 2
  }
}