Pith Number

pith:HQAEAMEJ

pith:2019:HQAEAMEJMGLBHPMH7BGC2RCYJU

not attested not anchored not stored refs pending

An Identity Motivated by an Amazing Identity of Ramanujan

James Mc Laughlin

arxiv:1901.04842 v1 · 2019-01-04 · 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{HQAEAMEJMGLBHPMH7BGC2RCYJU}

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	2026-05-17T23:56:21.546730Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c00403089619613bd87f84c2d44584d350489c7f6af1420416b117b0efc10a9

Aliases

arxiv: 1901.04842 · arxiv_version: 1901.04842v1 · doi: 10.48550/arxiv.1901.04842 · pith_short_12: HQAEAMEJMGLB · pith_short_16: HQAEAMEJMGLBHPMH · pith_short_8: HQAEAMEJ

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/HQAEAMEJMGLBHPMH7BGC2RCYJU \
  | 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: 3c00403089619613bd87f84c2d44584d350489c7f6af1420416b117b0efc10a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c054bc6d4dc1b664113fcbe9fdd6787c8ee607082ef692313d144449c40c4480",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2019-01-04T23:57:52Z",
    "title_canon_sha256": "609c9b871bf96e623ef46fce55211e913d9290ffcd10167ed8d5b7010572ceb6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.04842",
    "kind": "arxiv",
    "version": 1
  }
}