Pith Number

pith:WNBAYFRM

pith:2022:WNBAYFRMQC7NJZZW2G72JV47L3

not attested not anchored not stored refs pending

Approximating binary longest common subsequence in almost-linear time

Ray Li, Xiaoyu He

arxiv:2211.16660 v2 · 2022-11-30 · cs.DS · cs.DM · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WNBAYFRMQC7NJZZW2G72JV47L3}

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	2026-07-05T05:40:21.883039Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3420c162c80bed4e736d1bfa4d79f5ef4f9777429128ec8cf3c2116c3173c5d

Aliases

arxiv: 2211.16660 · arxiv_version: 2211.16660v2 · doi: 10.48550/arxiv.2211.16660 · pith_short_12: WNBAYFRMQC7N · pith_short_16: WNBAYFRMQC7NJZZW · pith_short_8: WNBAYFRM

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/WNBAYFRMQC7NJZZW2G72JV47L3 \
  | 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: b3420c162c80bed4e736d1bfa4d79f5ef4f9777429128ec8cf3c2116c3173c5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3dad941fb0de03b047d58b4ce8ec472c3e217d6a3cef5acfa950db4d38f4e6d3",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2022-11-30T01:11:52Z",
    "title_canon_sha256": "930c13b0b720160e2cdec20ae14dba503a5d3988d02e1ecccf23ae3f66a5f9e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2211.16660",
    "kind": "arxiv",
    "version": 2
  }
}