Pith Number

pith:IGV7SAYH

pith:2007:IGV7SAYHTLX2MALS2Y45W5YYXZ

not attested not anchored not stored refs pending

Polygraphic programs and polynomial-time functions

Guillaume Bonfante, Yves Guiraud

arxiv:cs/0701032 v4 · 2007-01-05 · cs.LO · cs.CC · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IGV7SAYHTLX2MALS2Y45W5YYXZ}

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	2026-05-18T01:37:33.390742Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41abf903079aefa60172d639db7718be7edb78b805039dc935505d926c3d4ef4

Aliases

arxiv: cs/0701032 · arxiv_version: cs/0701032v4 · doi: 10.48550/arxiv.cs/0701032 · pith_short_12: IGV7SAYHTLX2 · pith_short_16: IGV7SAYHTLX2MALS · pith_short_8: IGV7SAYH

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/IGV7SAYHTLX2MALS2Y45W5YYXZ \
  | 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: 41abf903079aefa60172d639db7718be7edb78b805039dc935505d926c3d4ef4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "872184a942e1eb87a6d044baf934411dc01961ce3428e0d0d86fbbf7e5e4f3a9",
    "cross_cats_sorted": [
      "cs.CC",
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2007-01-05T18:05:48Z",
    "title_canon_sha256": "fb902f97ef2c36c288a24508dfb30dc77adf76633d9df306e9722998cbe3470f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0701032",
    "kind": "arxiv",
    "version": 4
  }
}