Pith Number

pith:VMIVPIXV

pith:2013:VMIVPIXVC6JFXJN3GMHI66CHWF

not attested not anchored not stored refs pending

A Succinct Grammar Compression

Hiroshi Sakamoto, Yasuo Tabei, Yoshimasa Takabatake

arxiv:1304.0917 v3 · 2013-04-03 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VMIVPIXVC6JFXJN3GMHI66CHWF}

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	2026-05-18T03:20:47.839757Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab1157a2f517925ba5bb330e8f7847b15016ebf558477056bce997f05b51f44e

Aliases

arxiv: 1304.0917 · arxiv_version: 1304.0917v3 · doi: 10.48550/arxiv.1304.0917 · pith_short_12: VMIVPIXVC6JF · pith_short_16: VMIVPIXVC6JFXJN3 · pith_short_8: VMIVPIXV

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/VMIVPIXVC6JFXJN3GMHI66CHWF \
  | 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: ab1157a2f517925ba5bb330e8f7847b15016ebf558477056bce997f05b51f44e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb21b35528e9e20530a688318c306d2797c88592daceb18a51263eddce36cf4a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-04-03T11:13:00Z",
    "title_canon_sha256": "99a9acc12b67de5a602befb673ceec5ffa397a3904fbc9f0718158ed0ae61844"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.0917",
    "kind": "arxiv",
    "version": 3
  }
}