Pith Number

pith:SVBDCBYM

pith:2019:SVBDCBYMY7ZYQYVCPKVYPQ4FVR

not attested not anchored not stored refs pending

Some Approximation Properties of New Families of Positive Linear Operators

Prashantkumar Patel

arxiv:1904.08635 v1 · 2019-04-18 · 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{SVBDCBYMY7ZYQYVCPKVYPQ4FVR}

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	2026-05-17T23:48:13.588373Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

954231070cc7f38862a27aab87c385ac44f34e1ed897a1a80bc6d2c82ad6a02b

Aliases

arxiv: 1904.08635 · arxiv_version: 1904.08635v1 · doi: 10.48550/arxiv.1904.08635 · pith_short_12: SVBDCBYMY7ZY · pith_short_16: SVBDCBYMY7ZYQYVC · pith_short_8: SVBDCBYM

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/SVBDCBYMY7ZYQYVCPKVYPQ4FVR \
  | 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: 954231070cc7f38862a27aab87c385ac44f34e1ed897a1a80bc6d2c82ad6a02b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "275d35b84034bacf2d03e22397b465346698cd1a70bc86cd30d44bbb80cae219",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2019-04-18T08:20:10Z",
    "title_canon_sha256": "ddf7e3b9db71fd60da27f27f126e2c81ab136625f7384660549a4669798d111c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.08635",
    "kind": "arxiv",
    "version": 1
  }
}