Pith Number

pith:MF65ZUGG

pith:2019:MF65ZUGG3URLMR4GLHKPYP5RJT

not attested not anchored not stored refs pending

A directed graph structure of alternating sign matrices

Masato Kobayashi

arxiv:1903.08338 v1 · 2019-03-20 · 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{MF65ZUGG3URLMR4GLHKPYP5RJT}

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	2026-05-17T23:50:48.355236Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

617ddcd0c6dd22b6478659d4fc3fb14cc92a9ac598219f3f9502c691ac47e386

Aliases

arxiv: 1903.08338 · arxiv_version: 1903.08338v1 · doi: 10.48550/arxiv.1903.08338 · pith_short_12: MF65ZUGG3URL · pith_short_16: MF65ZUGG3URLMR4G · pith_short_8: MF65ZUGG

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/MF65ZUGG3URLMR4GLHKPYP5RJT \
  | 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: 617ddcd0c6dd22b6478659d4fc3fb14cc92a9ac598219f3f9502c691ac47e386

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4898553fc037c807a8b14228fdad7674722dcdb12020adcf3759382d3d1c6e9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-03-20T04:20:32Z",
    "title_canon_sha256": "acd3afcc9c99e74dac8d46048398a54f2af16fd00a7eb5e8f9f719f770fb214e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.08338",
    "kind": "arxiv",
    "version": 1
  }
}