Pith Number

pith:OT6CIPMN

pith:2019:OT6CIPMNN2PWWG6SZRDAVTLTWF

not attested not anchored not stored refs pending

Elementary proofs of generalized continued fraction formulae for $e$

Zhentao Lu

arxiv:1907.05563 v1 · 2019-07-12 · math.NT · math.HO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OT6CIPMNN2PWWG6SZRDAVTLTWF}

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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	2026-05-17T23:40:47.923351Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74fc243d8d6e9f6b1bd2cc460acd73b14cc24d9df0833f1d43e97ae9f82f51ee

Aliases

arxiv: 1907.05563 · arxiv_version: 1907.05563v1 · doi: 10.48550/arxiv.1907.05563 · pith_short_12: OT6CIPMNN2PW · pith_short_16: OT6CIPMNN2PWWG6S · pith_short_8: OT6CIPMN

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/OT6CIPMNN2PWWG6SZRDAVTLTWF \
  | 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: 74fc243d8d6e9f6b1bd2cc460acd73b14cc24d9df0833f1d43e97ae9f82f51ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4f926f4409863834e08ca57b7bb2416bc141c65f8ffbfa53dc988e9366b5c3a",
    "cross_cats_sorted": [
      "math.HO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2019-07-12T03:35:54Z",
    "title_canon_sha256": "686cefb68fd248bdd6a358f3acfa5752ef7e14f8489e929a1f45592108b34d59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.05563",
    "kind": "arxiv",
    "version": 1
  }
}