Pith Number

pith:FZJVKEEQ

pith:2015:FZJVKEEQ3X7CMN25YC45XVWT2E

not attested not anchored not stored refs pending

A Lex-BFS-based recognition algorithm for Robinsonian matrices

Matteo Seminaroti, Monique Laurent

arxiv:1504.06586 v2 · 2015-04-24 · cs.DM · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FZJVKEEQ3X7CMN25YC45XVWT2E}

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	2026-05-18T00:54:48.259190Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e53551090ddfe26375dc0b9dbd6d3d1241276a8ba060cbfeb8816327fab3076

Aliases

arxiv: 1504.06586 · arxiv_version: 1504.06586v2 · doi: 10.48550/arxiv.1504.06586 · pith_short_12: FZJVKEEQ3X7C · pith_short_16: FZJVKEEQ3X7CMN25 · pith_short_8: FZJVKEEQ

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/FZJVKEEQ3X7CMN25YC45XVWT2E \
  | 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: 2e53551090ddfe26375dc0b9dbd6d3d1241276a8ba060cbfeb8816327fab3076

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17fb3f451def7df6a37b361ba2ba846ba1eac43a6730dfd58e47d201f529423e",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2015-04-24T18:05:00Z",
    "title_canon_sha256": "c1af9ea83f3923a4e4944da1a75286ce3ef678138f19bae93ae7220f61b9a688"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.06586",
    "kind": "arxiv",
    "version": 2
  }
}