Pith Number

pith:O5QSQPNQ

pith:2008:O5QSQPNQG354QBK3IXTSRY47RS

not attested not anchored not stored refs pending

Shape preserving properties of generalized Bernstein operators on Extended Chebyshev spaces

H. Render, J. M. Aldaz, O. Kounchev

arxiv:0805.1614 v2 · 2008-05-12 · 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{O5QSQPNQG354QBK3IXTSRY47RS}

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	2026-05-18T04:40:32.950015Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7761283db036fbc8055b45e728e39f8cbea60dfecdea8f9478fcaebd26ae98cf

Aliases

arxiv: 0805.1614 · arxiv_version: 0805.1614v2 · doi: 10.48550/arxiv.0805.1614 · pith_short_12: O5QSQPNQG354 · pith_short_16: O5QSQPNQG354QBK3 · pith_short_8: O5QSQPNQ

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/O5QSQPNQG354QBK3IXTSRY47RS \
  | 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: 7761283db036fbc8055b45e728e39f8cbea60dfecdea8f9478fcaebd26ae98cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "73e7eb1f8e7b21ad23a781f656baddbe403a58c97fd29671d34c099052d87f8c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2008-05-12T12:00:15Z",
    "title_canon_sha256": "fd538bb39848772c57676a1fcfb7f7208f5d3e36d38682997b772b309dd5295a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0805.1614",
    "kind": "arxiv",
    "version": 2
  }
}