Pith Number

pith:Q3KLUS2T

pith:2011:Q3KLUS2T2ISOG57EWXOCDI2VLK

not attested not anchored not stored refs pending

Spectra of Coronae

Cam McLeman, Erin McNicholas

arxiv:1111.1200 v1 · 2011-11-04 · 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{Q3KLUS2T2ISOG57EWXOCDI2VLK}

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	2026-05-18T04:09:35.530254Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86d4ba4b53d224e377e4b5dc21a3555a999e8485fd0e8bec167e93e2b1e81be4

Aliases

arxiv: 1111.1200 · arxiv_version: 1111.1200v1 · doi: 10.48550/arxiv.1111.1200 · pith_short_12: Q3KLUS2T2ISO · pith_short_16: Q3KLUS2T2ISOG57E · pith_short_8: Q3KLUS2T

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/Q3KLUS2T2ISOG57EWXOCDI2VLK \
  | 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: 86d4ba4b53d224e377e4b5dc21a3555a999e8485fd0e8bec167e93e2b1e81be4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31197e3c5ae1734ba75107b47ae6d9176beea7e03c98a6d4d88877d2d464fd64",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-11-04T18:08:42Z",
    "title_canon_sha256": "7264435046c6ed9b2e4628fa0bad34c072bf19c992991cf2c980890d22651f30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.1200",
    "kind": "arxiv",
    "version": 1
  }
}