Pith Number

pith:FELPYSNW

pith:2018:FELPYSNWI4FECKROR6ZXMJHJVR

not attested not anchored not stored refs pending

Passing through a stack $k$ times with reversals

Howard Skogman, Rebecca Smith, Toufik Mansour

arxiv:1808.04199 v1 · 2018-08-13 · 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{FELPYSNWI4FECKROR6ZXMJHJVR}

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	2026-05-18T00:08:18.620601Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2916fc49b6470a412a2e8fb37624e9ac7493e8753d83621bfb75789884f817de

Aliases

arxiv: 1808.04199 · arxiv_version: 1808.04199v1 · doi: 10.48550/arxiv.1808.04199 · pith_short_12: FELPYSNWI4FE · pith_short_16: FELPYSNWI4FECKRO · pith_short_8: FELPYSNW

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/FELPYSNWI4FECKROR6ZXMJHJVR \
  | 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: 2916fc49b6470a412a2e8fb37624e9ac7493e8753d83621bfb75789884f817de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9aec6706e641ecd1eb5de58f84f69147313341e3bc9f78e9ad56e0f1d346a9aa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-08-13T13:30:10Z",
    "title_canon_sha256": "37668bf857f7f6e432ba9066264ab9ff18005b054bbccab6ee01e3858532b030"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.04199",
    "kind": "arxiv",
    "version": 1
  }
}