Pith Number

pith:UG7RCDDV

pith:2010:UG7RCDDVXYXRR55EOFLBSF2B27

not attested not anchored not stored refs pending

Mechanized semantics

Xavier Leroy (INRIA Rocquencourt)

arxiv:1010.5582 v1 · 2010-10-27 · 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{UG7RCDDVXYXRR55EOFLBSF2B27}

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	2026-05-18T04:38:16.360416Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1bf110c75be2f18f7a47156191741d7e62b11f724484495b21c73b3e7065a10

Aliases

arxiv: 1010.5582 · arxiv_version: 1010.5582v1 · doi: 10.48550/arxiv.1010.5582 · pith_short_12: UG7RCDDVXYXR · pith_short_16: UG7RCDDVXYXRR55E · pith_short_8: UG7RCDDV

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/UG7RCDDVXYXRR55EOFLBSF2B27 \
  | 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: a1bf110c75be2f18f7a47156191741d7e62b11f724484495b21c73b3e7065a10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "058ba5f7eb945aa5a6d73c7d0722068b33a9803d7c8c6da32fcdf4ec0b919a76",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2010-10-27T06:12:50Z",
    "title_canon_sha256": "5375b6872d0c439949b7e2ebb7cf8eecab9860d0524f8c4999eacf17fdddcdef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.5582",
    "kind": "arxiv",
    "version": 1
  }
}