Pith Number

pith:2LQHVXUX

pith:2009:2LQHVXUXSXMZIVXJ2P5PD6CATC

not attested not anchored not stored refs pending

On the Use of Suffix Arrays for Memory-Efficient Lempel-Ziv Data Compression

Arlindo Oliveira, Artur Ferreira, Mario Figueiredo

arxiv:0903.4251 v1 · 2009-03-25 · 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{2LQHVXUXSXMZIVXJ2P5PD6CATC}

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	2026-05-18T00:58:48.177155Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2e07ade9795d99456e9d3faf1f840989bcf47d2f80a96cde10431e52f75ab86

Aliases

arxiv: 0903.4251 · arxiv_version: 0903.4251v1 · doi: 10.48550/arxiv.0903.4251 · pith_short_12: 2LQHVXUXSXMZ · pith_short_16: 2LQHVXUXSXMZIVXJ · pith_short_8: 2LQHVXUX

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/2LQHVXUXSXMZIVXJ2P5PD6CATC \
  | 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: d2e07ade9795d99456e9d3faf1f840989bcf47d2f80a96cde10431e52f75ab86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3828a313fb7f5781d922ee1bf4a762c947d72db6c4454d622aff627ad8df61e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2009-03-25T19:25:24Z",
    "title_canon_sha256": "676263cfa1314f2eaeec0f6d96f020447bcac42a8c6c78c19606c0476fe39ea5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.4251",
    "kind": "arxiv",
    "version": 1
  }
}