Pith Number

pith:HNF77Y6N

pith:2013:HNF77Y6NI7G3LUMN7SJXPWM3GS

not attested not anchored not stored refs pending

Minimal lambda-theories by ultraproducts

Alberto Carraro (PPS, Antonino Salibra (DAIS, Antonio Bucciarelli (PPS, Universit\`a Ca' Foscari Venezia), Universit\'e Paris Diderot)

arxiv:1303.7329 v1 · 2013-03-29 · cs.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{HNF77Y6NI7G3LUMN7SJXPWM3GS}

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	2026-05-18T03:29:28.832635Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b4bffe3cd47cdb5d18dfc9377d99b349f5144c40f82c768aa759401ccd050f9

Aliases

arxiv: 1303.7329 · arxiv_version: 1303.7329v1 · doi: 10.48550/arxiv.1303.7329 · pith_short_12: HNF77Y6NI7G3 · pith_short_16: HNF77Y6NI7G3LUMN · pith_short_8: HNF77Y6N

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/HNF77Y6NI7G3LUMN7SJXPWM3GS \
  | 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: 3b4bffe3cd47cdb5d18dfc9377d99b349f5144c40f82c768aa759401ccd050f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32823d730f3b4020e47cd888fd1dcf6f485352fe6e6a458c10da0da4155e445f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2013-03-29T09:01:59Z",
    "title_canon_sha256": "997774d2a0846d3b86c14980dff85bb5e430243a02a2157fe7e6361de03beb3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.7329",
    "kind": "arxiv",
    "version": 1
  }
}