Pith Number

pith:MSHAM7MZ

pith:2012:MSHAM7MZQKRDAQ64LDHGRMYWOZ

not attested not anchored not stored refs pending

On an integral involving the digamma function

Donal F. Connon

arxiv:1212.1432 v2 · 2012-12-01 · math.GM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MSHAM7MZQKRDAQ64LDHGRMYWOZ}

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	2026-05-18T03:38:55.320182Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

648e067d9982a23043dc58ce68b316764df28a7387e82e361cb27eda1f5fa0b2

Aliases

arxiv: 1212.1432 · arxiv_version: 1212.1432v2 · doi: 10.48550/arxiv.1212.1432 · pith_short_12: MSHAM7MZQKRD · pith_short_16: MSHAM7MZQKRDAQ64 · pith_short_8: MSHAM7MZ

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/MSHAM7MZQKRDAQ64LDHGRMYWOZ \
  | 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: 648e067d9982a23043dc58ce68b316764df28a7387e82e361cb27eda1f5fa0b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d949c033949fa55f6ebc97be673f7caaca4730bd6e39105f35feecaef947d521",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GM",
    "submitted_at": "2012-12-01T20:01:40Z",
    "title_canon_sha256": "57ac49c8e02433bff712f7c93afe181db2233ff89b2b24c2da0fa94322a91a70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.1432",
    "kind": "arxiv",
    "version": 2
  }
}