Pith Number

pith:XXBPXJ6I

pith:2013:XXBPXJ6I7HRGQXTLLEF6ADLVWT

not attested not anchored not stored refs pending

Two hypergeometric tales and a new irrationality measure of $\zeta(2)$

Wadim Zudilin

arxiv:1310.1526 v3 · 2013-10-06 · math.NT · 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{XXBPXJ6I7HRGQXTLLEF6ADLVWT}

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	2026-05-18T02:45:04.696258Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bdc2fba7c8f9e2685e6b590be00d75b4eb8df31881877243957f648e43fb5b87

Aliases

arxiv: 1310.1526 · arxiv_version: 1310.1526v3 · doi: 10.48550/arxiv.1310.1526 · pith_short_12: XXBPXJ6I7HRG · pith_short_16: XXBPXJ6I7HRGQXTL · pith_short_8: XXBPXJ6I

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/XXBPXJ6I7HRGQXTLLEF6ADLVWT \
  | 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: bdc2fba7c8f9e2685e6b590be00d75b4eb8df31881877243957f648e43fb5b87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d30efd3ceccf34ad270b2ee365c8fe85ee8043c1ad61b76fca9e12e9ce572123",
    "cross_cats_sorted": [
      "math.CA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2013-10-06T01:44:56Z",
    "title_canon_sha256": "a673cb8a17b0ac97a9389c448a86a061c1195adf947043984b94797a5a2071f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.1526",
    "kind": "arxiv",
    "version": 3
  }
}