Pith Number

pith:O5GWOG6Z

pith:2017:O5GWOG6Z77J3A7QRNFM5VY6YAM

not attested not anchored not stored refs pending

Fine approximation of convex bodies by polytopes

Dmitry Ryabogin, Fedor Nazarov, M\'arton Nasz\'odi

arxiv:1705.01867 v1 · 2017-05-04 · 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{O5GWOG6Z77J3A7QRNFM5VY6YAM}

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	2026-05-18T00:45:02.152834Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

774d671bd9ffd3b07e116959dae3d8033aaa420b4b84cfea44e7cbf64af44f2a

Aliases

arxiv: 1705.01867 · arxiv_version: 1705.01867v1 · doi: 10.48550/arxiv.1705.01867 · pith_short_12: O5GWOG6Z77J3 · pith_short_16: O5GWOG6Z77J3A7QR · pith_short_8: O5GWOG6Z

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/O5GWOG6Z77J3A7QRNFM5VY6YAM \
  | 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: 774d671bd9ffd3b07e116959dae3d8033aaa420b4b84cfea44e7cbf64af44f2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c233ce03564eca0863fcbc66d71f77806e5e3cc37dc8293f4fef5acf0d5db84",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2017-05-04T14:53:32Z",
    "title_canon_sha256": "6e15acaadedc9b5fdb5012fd181660c8ecd8281da639b1d5c8531d973717dd78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.01867",
    "kind": "arxiv",
    "version": 1
  }
}