Pith Number

pith:63VAYCT5

pith:2011:63VAYCT5JCLAXFAIN65AHCT5IG

not attested not anchored not stored refs pending

Nominal Henkin Semantics: simply-typed lambda-calculus models in nominal sets

Dominic P. Mulligan, Murdoch J. Gabbay

arxiv:1111.0089 v1 · 2011-11-01 · 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{63VAYCT5JCLAXFAIN65AHCT5IG}

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	2026-05-18T04:09:46.424257Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6ea0c0a7d48960b94086fba038a7d419803d2a8a76b431eb2b5da4f4080b770

Aliases

arxiv: 1111.0089 · arxiv_version: 1111.0089v1 · doi: 10.48550/arxiv.1111.0089 · pith_short_12: 63VAYCT5JCLA · pith_short_16: 63VAYCT5JCLAXFAI · pith_short_8: 63VAYCT5

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/63VAYCT5JCLAXFAIN65AHCT5IG \
  | 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: f6ea0c0a7d48960b94086fba038a7d419803d2a8a76b431eb2b5da4f4080b770

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b25b2f27356e748aff4f9b85d8569def402ce48508bc6d6420f9976892feec38",
    "cross_cats_sorted": [
      "cs.PL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2011-11-01T00:18:23Z",
    "title_canon_sha256": "8dc676cafaedcca25c620f7de368393cb3c60885fc91bc8254b39e1351d2663d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.0089",
    "kind": "arxiv",
    "version": 1
  }
}