Pith Number

pith:FGTKTVB3

pith:2015:FGTKTVB3DYO3HR2MY7U4NLQHR7

not attested not anchored not stored refs pending

Encoding TLA+ set theory into many-sorted first-order logic

Hern\'an Vanzetto, Stephan Merz

arxiv:1508.03838 v1 · 2015-08-16 · 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{FGTKTVB3DYO3HR2MY7U4NLQHR7}

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	2026-05-18T01:35:15.112917Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29a6a9d43b1e1db3c74cc7e9c6ae078fd0280ad8d57a1cb7189ab60c3f7d02fa

Aliases

arxiv: 1508.03838 · arxiv_version: 1508.03838v1 · doi: 10.48550/arxiv.1508.03838 · pith_short_12: FGTKTVB3DYO3 · pith_short_16: FGTKTVB3DYO3HR2M · pith_short_8: FGTKTVB3

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/FGTKTVB3DYO3HR2MY7U4NLQHR7 \
  | 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: 29a6a9d43b1e1db3c74cc7e9c6ae078fd0280ad8d57a1cb7189ab60c3f7d02fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd5c2fdd58bf22dd58a8bd177c8b11fe10eb3036563cfe1d34dd938ba2cdadb9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2015-08-16T15:47:07Z",
    "title_canon_sha256": "7dda04cf33e29d393e7235e250b3b845ae6605619c061bdc0bfdb961b7dae3cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.03838",
    "kind": "arxiv",
    "version": 1
  }
}