Pith Number

pith:6V4GCZ3I

pith:2017:6V4GCZ3I23D6GLKSRJLAHFNTUL

not attested not anchored not stored refs pending

Space-Efficient Algorithms for Longest Increasing Subsequence

Hirotaka Ono, Jun Tarui, Masashi Kiyomi, Pascal Schweitzer, Yota Otachi

arxiv:1712.09230 v1 · 2017-12-26 · 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{6V4GCZ3I23D6GLKSRJLAHFNTUL}

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	2026-05-18T00:27:14.153820Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f578616768d6c7e32d528a560395b3a2dcadee4785134b85266d60ff67c6d95a

Aliases

arxiv: 1712.09230 · arxiv_version: 1712.09230v1 · doi: 10.48550/arxiv.1712.09230 · pith_short_12: 6V4GCZ3I23D6 · pith_short_16: 6V4GCZ3I23D6GLKS · pith_short_8: 6V4GCZ3I

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/6V4GCZ3I23D6GLKSRJLAHFNTUL \
  | 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: f578616768d6c7e32d528a560395b3a2dcadee4785134b85266d60ff67c6d95a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80f03fd190f9a1c186c7498ec10ee4a7187cdf82d1442eb93b28752a7d4bb956",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-12-26T10:55:12Z",
    "title_canon_sha256": "aa91ab59f8b55f965e479aec5a240cb34531320aa21c5483e344ac0356b8bd9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.09230",
    "kind": "arxiv",
    "version": 1
  }
}