Pith Number

pith:M5GUCISU

pith:2012:M5GUCISUNEVNHPKWJHSBHMOZB7

not attested not anchored not stored refs pending

Ramanujan-Sato-like series

Gert Almkvist, Jes\'us Guillera

arxiv:1201.5233 v3 · 2012-01-25 · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M5GUCISUNEVNHPKWJHSBHMOZB7}

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	2026-05-18T03:43:18.461624Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

674d412254692ad3bd5649e413b1d90fd89f90f9fe630ac922e9410ab1586582

Aliases

arxiv: 1201.5233 · arxiv_version: 1201.5233v3 · doi: 10.48550/arxiv.1201.5233 · pith_short_12: M5GUCISUNEVN · pith_short_16: M5GUCISUNEVNHPKW · pith_short_8: M5GUCISU

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/M5GUCISUNEVNHPKWJHSBHMOZB7 \
  | 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: 674d412254692ad3bd5649e413b1d90fd89f90f9fe630ac922e9410ab1586582

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0e5d12d6749f00fb1677f6f4609f2d5b24c219e3a3fd4d5c1e519e8d8da37ed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2012-01-25T10:51:16Z",
    "title_canon_sha256": "f1c61a7d6417454c87f170484199511828113a80537e2d13b0a50f9123595854"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.5233",
    "kind": "arxiv",
    "version": 3
  }
}