Pith Number

pith:26ZRZGYW

pith:2016:26ZRZGYWB5TMZOBU2VWPYTCPXF

not attested not anchored not stored refs pending

More properties of the Ramanujan sequence

Andrew Bakan, Luis Salinas, Stephan Ruscheweyh

arxiv:1605.05479 v3 · 2016-05-18 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{26ZRZGYWB5TMZOBU2VWPYTCPXF}

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	2026-05-18T00:57:37.856944Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7b31c9b160f66ccb834d56cfc4c4fb96e8578ccaf8a758370095e5f167a1973

Aliases

arxiv: 1605.05479 · arxiv_version: 1605.05479v3 · doi: 10.48550/arxiv.1605.05479 · pith_short_12: 26ZRZGYWB5TM · pith_short_16: 26ZRZGYWB5TMZOBU · pith_short_8: 26ZRZGYW

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/26ZRZGYWB5TMZOBU2VWPYTCPXF \
  | 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: d7b31c9b160f66ccb834d56cfc4c4fb96e8578ccaf8a758370095e5f167a1973

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "804aebf5517cf26953fdfab3084c07b7b20d46579753b11d721a334ca8b0b427",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2016-05-18T08:34:21Z",
    "title_canon_sha256": "e86a6f6c65a3686e70fffd4eae01e42746f1653b15bf92cf2137267309d6411b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.05479",
    "kind": "arxiv",
    "version": 3
  }
}