Pith Number

pith:2ND7ETBR

pith:2018:2ND7ETBRZUUF2OGHN4YTMSMDOS

not attested not anchored not stored refs pending

Better approximation of functions by genuine Bernstein-Durrmeyer type operators

Ana Maria Acu, P.N. Agrawal

arxiv:1810.06822 v1 · 2018-10-16 · 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{2ND7ETBRZUUF2OGHN4YTMSMDOS}

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	2026-05-18T00:03:11.453733Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d347f24c31cd285d38c76f3136498374a7f04d6df4515307115ea9f4401795d9

Aliases

arxiv: 1810.06822 · arxiv_version: 1810.06822v1 · doi: 10.48550/arxiv.1810.06822 · pith_short_12: 2ND7ETBRZUUF · pith_short_16: 2ND7ETBRZUUF2OGH · pith_short_8: 2ND7ETBR

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/2ND7ETBRZUUF2OGHN4YTMSMDOS \
  | 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: d347f24c31cd285d38c76f3136498374a7f04d6df4515307115ea9f4401795d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10c6620ee975572120c8c29dd9f6698b8994a50698dae48beb95dacd3e006dd1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-10-16T05:45:33Z",
    "title_canon_sha256": "3493c94ec16614f9f3964706134182241d6f2a5bdb608aff4f346c5ea9612982"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.06822",
    "kind": "arxiv",
    "version": 1
  }
}