Pith Number

pith:JRBT7U4N

pith:2021:JRBT7U4NMBEBV4YL72XCFEZ2O2

not attested not anchored not stored refs pending

Completeness-resolvable graphs

Huiling Xu, Min Feng, Xuanlong Ma

arxiv:2101.02838 v1 · 2021-01-08 · 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{JRBT7U4NMBEBV4YL72XCFEZ2O2}

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	2026-07-05T02:05:30.935439Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c433fd38d60481af30bfeae22933a76af7075ebf9debb1575f64c17212d2cd6

Aliases

arxiv: 2101.02838 · arxiv_version: 2101.02838v1 · doi: 10.48550/arxiv.2101.02838 · pith_short_12: JRBT7U4NMBEB · pith_short_16: JRBT7U4NMBEBV4YL · pith_short_8: JRBT7U4N

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/JRBT7U4NMBEBV4YL72XCFEZ2O2 \
  | 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: 4c433fd38d60481af30bfeae22933a76af7075ebf9debb1575f64c17212d2cd6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66f5d225294f228b438ea01236f77fb52a18f248e78ac04093c0e10787a457b3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2021-01-08T03:57:55Z",
    "title_canon_sha256": "ef57a0639d6cf29b7097a7aefdb54d654e95dcfd3eab8bcae09eaef36c22a63a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.02838",
    "kind": "arxiv",
    "version": 1
  }
}