Pith Number

pith:SIN7CYDS

pith:2014:SIN7CYDS2PYHDRXPLSTAZXFGV4

not attested not anchored not stored refs pending

A way to prove the irrationality of Zeta(4)

Dirk Huylebrouck

arxiv:1406.4464 v1 · 2014-06-13 · 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{SIN7CYDS2PYHDRXPLSTAZXFGV4}

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	2026-05-18T02:49:31.992146Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

921bf16072d3f071c6ef5ca60cdca6af1a7b052745253aabbfd47316386b5161

Aliases

arxiv: 1406.4464 · arxiv_version: 1406.4464v1 · doi: 10.48550/arxiv.1406.4464 · pith_short_12: SIN7CYDS2PYH · pith_short_16: SIN7CYDS2PYHDRXP · pith_short_8: SIN7CYDS

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/SIN7CYDS2PYHDRXPLSTAZXFGV4 \
  | 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: 921bf16072d3f071c6ef5ca60cdca6af1a7b052745253aabbfd47316386b5161

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c637b4b977da2b6ab1ea69c5af336f771af8970e4ab4a66f654797ea813de0be",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2014-06-13T13:45:50Z",
    "title_canon_sha256": "7092475d9277706b22b5fa28994297c380b99c38441ed540a92c7ddd9f359b20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.4464",
    "kind": "arxiv",
    "version": 1
  }
}