Pith Number

pith:VISVBLPL

pith:2017:VISVBLPLPSS6J3CP4D7GSNXHKC

not attested not anchored not stored refs pending

A note on X-rays of permutations and a problem of Brualdi and Fritscher

Gustav Nordh

arxiv:1707.03928 v1 · 2017-07-12 · math.CO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VISVBLPLPSS6J3CP4D7GSNXHKC}

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	2026-05-18T00:40:23.087020Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa2550adeb7ca5e4ec4fe0fe6936e75098cf14a6622d6984fd9d5cdcd436d873

Aliases

arxiv: 1707.03928 · arxiv_version: 1707.03928v1 · doi: 10.48550/arxiv.1707.03928 · pith_short_12: VISVBLPLPSS6 · pith_short_16: VISVBLPLPSS6J3CP · pith_short_8: VISVBLPL

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/VISVBLPLPSS6J3CP4D7GSNXHKC \
  | 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: aa2550adeb7ca5e4ec4fe0fe6936e75098cf14a6622d6984fd9d5cdcd436d873

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c4cba8ef331ffe371221a84dbd872bd81cb4dc3523d7bb27db81c6e9eef6750",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-07-12T22:59:29Z",
    "title_canon_sha256": "733a60480c4b88154b05db38b7f99da73e019fdaa9d9f5d0fc3255df2f58e9f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.03928",
    "kind": "arxiv",
    "version": 1
  }
}