Pith Number

pith:F6WHY6PW

pith:2015:F6WHY6PWAH4NT2XYM5DAJU4SZG

not attested not anchored not stored refs pending

A Practical O(R\log\log n+n) time Algorithm for Computing the Longest Common Subsequence

Daxin Zhu, Lei Wang, Xiaodong Wang, Yingjie Wu

arxiv:1508.05553 v1 · 2015-08-23 · 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{F6WHY6PWAH4NT2XYM5DAJU4SZG}

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	2026-05-18T01:34:52.219652Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fac7c79f601f8d9eaf8674604d392c990ce8d5532774ffe3a0c454431cb3455

Aliases

arxiv: 1508.05553 · arxiv_version: 1508.05553v1 · doi: 10.48550/arxiv.1508.05553 · pith_short_12: F6WHY6PWAH4N · pith_short_16: F6WHY6PWAH4NT2XY · pith_short_8: F6WHY6PW

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/F6WHY6PWAH4NT2XYM5DAJU4SZG \
  | 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: 2fac7c79f601f8d9eaf8674604d392c990ce8d5532774ffe3a0c454431cb3455

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9581ce2cdfadc8fdb030e97a1562aefcc740b0370a06b1a1c3535ff7e8e5a9b7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-08-23T00:56:03Z",
    "title_canon_sha256": "b28943b70ea2f1849d92c0aedd324eb4d316db74c14c8aefd154a2ea976a60dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.05553",
    "kind": "arxiv",
    "version": 1
  }
}