Pith Number

pith:FJHBQ5NQ

pith:2014:FJHBQ5NQBJKYG6FBBOC5ZP76NL

not attested not anchored not stored refs pending

Translation of Michael Sadowsky's paper "An elementary proof for the existence of a developable M\"obius band and the attribution of the geometric problem to a variational problem"

Denis F. Hinz, Eliot Fried

arxiv:1408.3034 v2 · 2014-08-11 · math.HO · physics.hist-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FJHBQ5NQBJKYG6FBBOC5ZP76NL}

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	2026-05-18T02:43:53.630590Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a4e1875b00a558378a10b85dcbffe6aec4a5facfea4ad89a7862004fa4784ae

Aliases

arxiv: 1408.3034 · arxiv_version: 1408.3034v2 · doi: 10.48550/arxiv.1408.3034 · pith_short_12: FJHBQ5NQBJKY · pith_short_16: FJHBQ5NQBJKYG6FB · pith_short_8: FJHBQ5NQ

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/FJHBQ5NQBJKYG6FBBOC5ZP76NL \
  | 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: 2a4e1875b00a558378a10b85dcbffe6aec4a5facfea4ad89a7862004fa4784ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09c698edb149fea280ef414bf5119f9bf54e654ea65b1a175965979562a327b0",
    "cross_cats_sorted": [
      "physics.hist-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2014-08-11T00:59:55Z",
    "title_canon_sha256": "b39e10847ce70c599fd05f82151585587671bcc2e9690383ed273f22c7c00060"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.3034",
    "kind": "arxiv",
    "version": 2
  }
}