Pith Number

pith:NDGPOKH3

pith:2019:NDGPOKH3EWYLWDYSHUKV5MAUWH

not attested not anchored not stored refs pending

Flexible Schemes for Pattern-Avoiding Permutations

Yonah Biers-Ariel

arxiv:1905.07283 v2 · 2019-05-17 · 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{NDGPOKH3EWYLWDYSHUKV5MAUWH}

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	2026-05-17T23:45:03.748959Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68ccf728fb25b0bb0f123d155eb014b1d94a28bdf5a3e544da57e4b042f3ae96

Aliases

arxiv: 1905.07283 · arxiv_version: 1905.07283v2 · doi: 10.48550/arxiv.1905.07283 · pith_short_12: NDGPOKH3EWYL · pith_short_16: NDGPOKH3EWYLWDYS · pith_short_8: NDGPOKH3

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/NDGPOKH3EWYLWDYSHUKV5MAUWH \
  | 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: 68ccf728fb25b0bb0f123d155eb014b1d94a28bdf5a3e544da57e4b042f3ae96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ba06832b81f034cb906676195802ff076f6460623f6df3977ce36a42089a2a5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-05-17T14:16:03Z",
    "title_canon_sha256": "1d6d7afcd16c5e046d9c6ca25078bd2bea9e5818ca2ccde180e11d3779f39138"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.07283",
    "kind": "arxiv",
    "version": 2
  }
}