Pith Number

pith:BEPHGTPJ

pith:2018:BEPHGTPJV4Y7NXWHDAQOHQ6JZC

not attested not anchored not stored refs pending

Weighted-$L^2$ polynomial approximation in $\mathbb{C}$

John Erik Forn{\ae}ss, Jujie Wu, S\'everine Biard

arxiv:1805.11756 v2 · 2018-05-30 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BEPHGTPJV4Y7NXWHDAQOHQ6JZC}

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	2026-05-17T23:52:27.358184Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

091e734de9af31f6dec71820e3c3c9c8abedacf4864f5a11f5c1cc65064f4333

Aliases

arxiv: 1805.11756 · arxiv_version: 1805.11756v2 · doi: 10.48550/arxiv.1805.11756 · pith_short_12: BEPHGTPJV4Y7 · pith_short_16: BEPHGTPJV4Y7NXWH · pith_short_8: BEPHGTPJ

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/BEPHGTPJV4Y7NXWHDAQOHQ6JZC \
  | 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: 091e734de9af31f6dec71820e3c3c9c8abedacf4864f5a11f5c1cc65064f4333

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8cefbe3779adddeb16e308c6119730828e8711df1f70c21e6ac345a24dc0cc16",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2018-05-30T00:22:30Z",
    "title_canon_sha256": "1cab3cd7739f9557af51b9c98d2bc6dd600913fea4453bd974cba2a46e69b718"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.11756",
    "kind": "arxiv",
    "version": 2
  }
}