Pith Number

pith:PTNVCDJK

pith:2012:PTNVCDJK5OY6U62J5EME52ZQBP

not attested not anchored not stored refs pending

The Geometry of Types (Long Version)

Barbara Petit, Ugo Dal Lago

arxiv:1210.6857 v1 · 2012-10-25 · 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{PTNVCDJK5OY6U62J5EME52ZQBP}

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	2026-05-18T03:42:22.966588Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cdb510d2aebb1ea7b49e9184eeb300bf31b1b5a26d4fe49983359f0a61074e9

Aliases

arxiv: 1210.6857 · arxiv_version: 1210.6857v1 · doi: 10.48550/arxiv.1210.6857 · pith_short_12: PTNVCDJK5OY6 · pith_short_16: PTNVCDJK5OY6U62J · pith_short_8: PTNVCDJK

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/PTNVCDJK5OY6U62J5EME52ZQBP \
  | 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: 7cdb510d2aebb1ea7b49e9184eeb300bf31b1b5a26d4fe49983359f0a61074e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e451049c8b0e42a5155adbc10435f91e15e0a7064a957637f7a43c21274990f",
    "cross_cats_sorted": [
      "cs.PL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2012-10-25T14:40:48Z",
    "title_canon_sha256": "0891d13d632e28ef30af2097d435409f2e45d529a75bde10ff6e69b624db980a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.6857",
    "kind": "arxiv",
    "version": 1
  }
}