Pith Number

pith:E3PKO5SG

pith:2009:E3PKO5SGEYW7O4R3HP6UG2LVQH

not attested not anchored not stored refs pending

A System F accounting for scalars

Alejandro Diaz-Caro (Universite de Grenoble, Laboratoire LIPN), LIG, LIG), LIP, Pablo Arrighi (ENS-Lyon, Universite de Grenoble, Universite Paris-Nord

arxiv:0903.3741 v8 · 2009-03-22 · cs.LO · cs.PL · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E3PKO5SGEYW7O4R3HP6UG2LVQH}

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	2026-05-18T01:37:40.476494Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26dea77646262df7723b3bfd43697581e2c1b9855532b5e9961b30f7688885c4

Aliases

arxiv: 0903.3741 · arxiv_version: 0903.3741v8 · doi: 10.48550/arxiv.0903.3741 · pith_short_12: E3PKO5SGEYW7 · pith_short_16: E3PKO5SGEYW7O4R3 · pith_short_8: E3PKO5SG

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/E3PKO5SGEYW7O4R3HP6UG2LVQH \
  | 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: 26dea77646262df7723b3bfd43697581e2c1b9855532b5e9961b30f7688885c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c67970b850a704a72a79d5f7065f5c4dcd574d88391a24330bb63e1655ec74b",
    "cross_cats_sorted": [
      "cs.PL",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2009-03-22T17:10:09Z",
    "title_canon_sha256": "cc39797ec28d705d5fa04517921ea4e97c9a13ed4e53cc9b750cc24d2e50c29d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.3741",
    "kind": "arxiv",
    "version": 8
  }
}