Pith Number

pith:TORDM5G7

pith:2015:TORDM5G7OGJAGWYJSXVPEBA6VZ

not attested not anchored not stored refs pending

Approximating LZ77 in Small Space

Travis Gagie

arxiv:1503.02416 v1 · 2015-03-09 · 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{TORDM5G7OGJAGWYJSXVPEBA6VZ}

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	2026-05-18T02:25:19.615568Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ba23674df7192035b0995eaf2041eae400522791ee1a13ed92999b591433955

Aliases

arxiv: 1503.02416 · arxiv_version: 1503.02416v1 · doi: 10.48550/arxiv.1503.02416 · pith_short_12: TORDM5G7OGJA · pith_short_16: TORDM5G7OGJAGWYJ · pith_short_8: TORDM5G7

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/TORDM5G7OGJAGWYJSXVPEBA6VZ \
  | 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: 9ba23674df7192035b0995eaf2041eae400522791ee1a13ed92999b591433955

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c94166399cf641cd1fca8969f1c0f8395702ccdeff3e6bd18619dc276016785b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-03-09T10:17:30Z",
    "title_canon_sha256": "a662f0c460d9f2a31585111a1a190b83f00db682485f79613ec68149699b3a08"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.02416",
    "kind": "arxiv",
    "version": 1
  }
}