Pith Number

pith:DF52BTZ4

pith:2016:DF52BTZ4LY2KD6T3GHLKI374P7

not attested not anchored not stored refs pending

A new characterization of convexity with respect to Chebyshev systems

\'Eva Sz\'ekelyn\'e Rad\'acsi, Zsolt P\'ales

arxiv:1607.04026 v2 · 2016-07-14 · 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{DF52BTZ4LY2KD6T3GHLKI374P7}

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	2026-05-18T00:00:02.788237Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

197ba0cf3c5e34a1fa7b31d6a46ffc7fd36301098aaa00f740b16424c3139a83

Aliases

arxiv: 1607.04026 · arxiv_version: 1607.04026v2 · doi: 10.48550/arxiv.1607.04026 · pith_short_12: DF52BTZ4LY2K · pith_short_16: DF52BTZ4LY2KD6T3 · pith_short_8: DF52BTZ4

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/DF52BTZ4LY2KD6T3GHLKI374P7 \
  | 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: 197ba0cf3c5e34a1fa7b31d6a46ffc7fd36301098aaa00f740b16424c3139a83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "082119387e55d11d32b0f5e21c22f9da732ce5624dad25f499587dd37d0336fa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2016-07-14T08:17:28Z",
    "title_canon_sha256": "6e7e84dc1d061df27251b43aba6134b0e64d0d25acae3af1302c6949fd43938b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.04026",
    "kind": "arxiv",
    "version": 2
  }
}