Pith Number

pith:4V2JLAAC

pith:2009:4V2JLAACMW2VE4U4PLRIYUOD7Q

not attested not anchored not stored refs pending

Bottom-up rewriting for words and terms

Geraud Senizergues, Irene Durand

arxiv:0903.2554 v2 · 2009-03-14 · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4V2JLAACMW2VE4U4PLRIYUOD7Q}

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	2026-05-18T03:17:12.354627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e57495800265b552729c7ae28c51c3fc1134a526587d3f3a5d2bd70bd94519a8

Aliases

arxiv: 0903.2554 · arxiv_version: 0903.2554v2 · doi: 10.48550/arxiv.0903.2554 · pith_short_12: 4V2JLAACMW2V · pith_short_16: 4V2JLAACMW2VE4U4 · pith_short_8: 4V2JLAAC

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/4V2JLAACMW2VE4U4PLRIYUOD7Q \
  | 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: e57495800265b552729c7ae28c51c3fc1134a526587d3f3a5d2bd70bd94519a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ceaf51a307a34d7b9498e8787bdaf1ee10d7dd1e4a66a23cfa89affd6e68a3f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2009-03-14T16:14:18Z",
    "title_canon_sha256": "f2e2732a23c79d5bfd33c0616494ed4b289e159abf18de7002911aeff0bcd149"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.2554",
    "kind": "arxiv",
    "version": 2
  }
}