Pith Number

pith:NDWSSQCA

pith:2023:NDWSSQCA2YNGXWL3SG6YJGO7FD

not attested not anchored not stored refs pending

Polynomial approximation on disjoint segments and amplification of approximation

Konstantin Ryutin, Yuri Malykhin

arxiv:2306.11613 v2 · 2023-06-20 · math.FA · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NDWSSQCA2YNGXWL3SG6YJGO7FD}

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	2026-07-05T07:17:27.236489Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68ed294040d61a6bd97b91bd8499df28c82c3fd8bf6760e039698f38a8568c53

Aliases

arxiv: 2306.11613 · arxiv_version: 2306.11613v2 · doi: 10.48550/arxiv.2306.11613 · pith_short_12: NDWSSQCA2YNG · pith_short_16: NDWSSQCA2YNGXWL3 · pith_short_8: NDWSSQCA

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/NDWSSQCA2YNGXWL3SG6YJGO7FD \
  | 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: 68ed294040d61a6bd97b91bd8499df28c82c3fd8bf6760e039698f38a8568c53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f7494d9dfaba4a98bdbe4b30df9310fe3b242ebbe445fc55cf9877d52113217",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2023-06-20T15:42:25Z",
    "title_canon_sha256": "bcb74856db39c94c892fc8ea61e6d7ec02bce40db8561198ddd1dcbd014d9221"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2306.11613",
    "kind": "arxiv",
    "version": 2
  }
}