Pith Number

pith:Y37C7ZZX

pith:2009:Y37C7ZZXQFS52HCMFROGXRF63R

not attested not anchored not stored refs pending

Graph rewriting with polarized cloning

Dominique Duval (LJK), Fr\'ed\'eric Prost (LIG), Rachid Echahed (LIG)

arxiv:0911.3786 v3 · 2009-11-19 · 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{Y37C7ZZXQFS52HCMFROGXRF63R}

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	2026-05-18T03:57:14.463723Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6fe2fe7378165dd1c4c2c5c6bc4bedc722232e002ddf54e8b087342cd8ccb31

Aliases

arxiv: 0911.3786 · arxiv_version: 0911.3786v3 · doi: 10.48550/arxiv.0911.3786 · pith_short_12: Y37C7ZZXQFS5 · pith_short_16: Y37C7ZZXQFS52HCM · pith_short_8: Y37C7ZZX

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/Y37C7ZZXQFS52HCMFROGXRF63R \
  | 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: c6fe2fe7378165dd1c4c2c5c6bc4bedc722232e002ddf54e8b087342cd8ccb31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e461efb87132628cf3d43ed4ea897fe0e30a15e67d3c41c68c236eb3deabd07",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2009-11-19T12:54:50Z",
    "title_canon_sha256": "fbc63d3e6ff0f9bf4489edb632078bef6e42fb2b5138507c6bb66561b9800200"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.3786",
    "kind": "arxiv",
    "version": 3
  }
}