Pith Number

pith:BWBIFGRX

pith:2018:BWBIFGRXWLK2ICGF4S4SXD5RER

not attested not anchored not stored refs pending

A One-Sentence Line-of-Sight Proof of the Extreme Value Theorem

Samuel J. Ferguson

arxiv:1811.00877 v1 · 2018-11-04 · math.HO · 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{BWBIFGRXWLK2ICGF4S4SXD5RER}

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	2026-05-18T00:01:41.854568Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d82829a37b2d5a408c5e4b92b8fb1247f0dfe03ed2f95176da47f4c80a2911f

Aliases

arxiv: 1811.00877 · arxiv_version: 1811.00877v1 · doi: 10.48550/arxiv.1811.00877 · pith_short_12: BWBIFGRXWLK2 · pith_short_16: BWBIFGRXWLK2ICGF · pith_short_8: BWBIFGRX

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/BWBIFGRXWLK2ICGF4S4SXD5RER \
  | 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: 0d82829a37b2d5a408c5e4b92b8fb1247f0dfe03ed2f95176da47f4c80a2911f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9db3800f56ca8164a5f090e0b4333d35193858763414463aec3246e5ab082ea",
    "cross_cats_sorted": [
      "math.CA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2018-11-04T07:41:16Z",
    "title_canon_sha256": "7102a32174a4fdaacc1320306a42534c4304a80926dc86164a99f61bd3e0c5d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.00877",
    "kind": "arxiv",
    "version": 1
  }
}