Pith Number

pith:4HKOIMM4

pith:2013:4HKOIMM4EZSS7IT4OFZYP5EXGF

not attested not anchored not stored refs pending

On a normed version of a Rogers-Shephard type problem

Zsolt L\'angi

arxiv:1308.2500 v3 · 2013-08-12 · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4HKOIMM4EZSS7IT4OFZYP5EXGF}

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	2026-05-18T02:33:25.622379Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1d4e4319c26652fa27c717387f4973174fb831c7d32cfcada96e75419fdb0d9

Aliases

arxiv: 1308.2500 · arxiv_version: 1308.2500v3 · doi: 10.48550/arxiv.1308.2500 · pith_short_12: 4HKOIMM4EZSS · pith_short_16: 4HKOIMM4EZSS7IT4 · pith_short_8: 4HKOIMM4

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/4HKOIMM4EZSS7IT4OFZYP5EXGF \
  | 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: e1d4e4319c26652fa27c717387f4973174fb831c7d32cfcada96e75419fdb0d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d099ca0d06dd6e44293fbaa183361b9c75f184b9bea756ed42bbfe955a2de4c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2013-08-12T09:23:25Z",
    "title_canon_sha256": "9ad94f77cbdade4600b00c78e7cea7952f0bfbb7cde2291c9d9535d4c0bce0bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.2500",
    "kind": "arxiv",
    "version": 3
  }
}