Pith Number

pith:3PII5DOA

pith:2015:3PII5DOAXNI6WO3BBYQSN2NHWJ

not attested not anchored not stored refs pending

Addendum to: On the rational approximation of the sum of the reciprocals of the Fermat numbers

Michael Coons

arxiv:1511.08147 v1 · 2015-11-24 · 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{3PII5DOAXNI6WO3BBYQSN2NHWJ}

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	2026-05-18T01:25:57.231909Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dbd08e8dc0bb51eb3b610e2126e9a7b25407db1dfd23513aa1847143e0b92166

Aliases

arxiv: 1511.08147 · arxiv_version: 1511.08147v1 · doi: 10.48550/arxiv.1511.08147 · pith_short_12: 3PII5DOAXNI6 · pith_short_16: 3PII5DOAXNI6WO3B · pith_short_8: 3PII5DOA

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/3PII5DOAXNI6WO3BBYQSN2NHWJ \
  | 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: dbd08e8dc0bb51eb3b610e2126e9a7b25407db1dfd23513aa1847143e0b92166

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5c9aa372f9dd8f4e0e10d483b875406149b8b3302f9bba845046c4a73ce94a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2015-11-24T09:48:49Z",
    "title_canon_sha256": "230ca8b2b14b2be1c852d1996ce57bd6d7de12627e51b8f36cf80ed87368b3f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.08147",
    "kind": "arxiv",
    "version": 1
  }
}