Pith Number

pith:DP4RO7Y2

pith:2015:DP4RO7Y24J4VPBA42SEWJ7342A

not attested not anchored not stored refs pending

On the magnitude of a finite dimensional algebra

Alastair King, Joseph Chuang, Tom Leinster

arxiv:1505.04281 v2 · 2015-05-16 · math.RA · math.CT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DP4RO7Y24J4VPBA42SEWJ7342A}

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	2026-05-18T01:23:12.286705Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bf9177f1ae27957841cd48964ff7cd015c0db50dd989aa8c12749068c427266

Aliases

arxiv: 1505.04281 · arxiv_version: 1505.04281v2 · doi: 10.48550/arxiv.1505.04281 · pith_short_12: DP4RO7Y24J4V · pith_short_16: DP4RO7Y24J4VPBA4 · pith_short_8: DP4RO7Y2

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/DP4RO7Y24J4VPBA42SEWJ7342A \
  | 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: 1bf9177f1ae27957841cd48964ff7cd015c0db50dd989aa8c12749068c427266

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad02c2704c54088d453e7076a4e2200e789362f1112a1898478a21b7629c636e",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2015-05-16T15:11:24Z",
    "title_canon_sha256": "aa0a7dc14616d3c93ca03831fb0aae68579d5653e2fe415d440bf4c85bcdd294"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.04281",
    "kind": "arxiv",
    "version": 2
  }
}