Pith Number

pith:IVQHUGMC

pith:2011:IVQHUGMCVFF5WZ27CFUGWZWVPV

not attested not anchored not stored refs pending

Uniform and Pointwise Shape Preserving Approximation by Algebraic Polynomials

A. Prymak, D. Leviatan, I. A. Shevchuk, K. A. Kopotun

arxiv:1109.0968 v1 · 2011-09-05 · math.CA · math.FA · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IVQHUGMCVFF5WZ27CFUGWZWVPV}

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	2026-05-18T04:14:06.307113Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45607a1982a94bdb675f11686b66d57d463efdea521594ee47e49cfb6b27661b

Aliases

arxiv: 1109.0968 · arxiv_version: 1109.0968v1 · doi: 10.48550/arxiv.1109.0968 · pith_short_12: IVQHUGMCVFF5 · pith_short_16: IVQHUGMCVFF5WZ27 · pith_short_8: IVQHUGMC

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/IVQHUGMCVFF5WZ27CFUGWZWVPV \
  | 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: 45607a1982a94bdb675f11686b66d57d463efdea521594ee47e49cfb6b27661b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af43c3ec23919f2dca5244eec02f8913a3985b18df7d3b34117080722f34f3a0",
    "cross_cats_sorted": [
      "math.FA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2011-09-05T17:52:48Z",
    "title_canon_sha256": "277f14537fdfd5de58a12d4a0e76059225c8494effea0f76eb630543e4e46321"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.0968",
    "kind": "arxiv",
    "version": 1
  }
}