Pith Number

pith:MRCQFQSX

pith:2014:MRCQFQSXSNLKGNGTVARHPXTHXJ

not attested not anchored not stored refs pending

Longest common subsequences in sets of words

Boris Bukh, Jie Ma

arxiv:1406.7017 v2 · 2014-06-26 · 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{MRCQFQSXSNLKGNGTVARHPXTHXJ}

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	2026-05-18T02:39:38.073167Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

644502c2579356a334d3a82277de67ba7acf9411a10df36c25baac8007eb523f

Aliases

arxiv: 1406.7017 · arxiv_version: 1406.7017v2 · doi: 10.48550/arxiv.1406.7017 · pith_short_12: MRCQFQSXSNLK · pith_short_16: MRCQFQSXSNLKGNGT · pith_short_8: MRCQFQSX

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/MRCQFQSXSNLKGNGTVARHPXTHXJ \
  | 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: 644502c2579356a334d3a82277de67ba7acf9411a10df36c25baac8007eb523f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f32ac4fda29b2e169e97f9e442200352649142b978430162b12df5f0fd1432b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-06-26T20:07:52Z",
    "title_canon_sha256": "bbca3d522c6df23d36c40a77b930298443af9539bed8fbac49987c8b18c09fbc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.7017",
    "kind": "arxiv",
    "version": 2
  }
}