Pith Number

pith:YJD4CHEF

pith:2010:YJD4CHEFKRH5CUOYZQMGLGGDWH

not attested not anchored not stored refs pending

An inductive proof of the Feinstein-Heath Swiss cheese "classicalisation" theorem

Jonathan Mason

arxiv:1010.2537 v1 · 2010-10-12 · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YJD4CHEFKRH5CUOYZQMGLGGDWH}

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	2026-05-18T04:39:27.375202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c247c11c85544fd151d8cc186598c3b1f2aa77795f2d1f1cf85f6b13e4534ca3

Aliases

arxiv: 1010.2537 · arxiv_version: 1010.2537v1 · doi: 10.48550/arxiv.1010.2537 · pith_short_12: YJD4CHEFKRH5 · pith_short_16: YJD4CHEFKRH5CUOY · pith_short_8: YJD4CHEF

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/YJD4CHEFKRH5CUOYZQMGLGGDWH \
  | 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: c247c11c85544fd151d8cc186598c3b1f2aa77795f2d1f1cf85f6b13e4534ca3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a391191b013085d0e5ee3dd0cf3e14906d491188d48ba096353151641ba24f2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2010-10-12T23:32:04Z",
    "title_canon_sha256": "77e42d19beb91877591b76879dd107596dc04117691be9f4ea34e6d526e19649"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.2537",
    "kind": "arxiv",
    "version": 1
  }
}