Pith Number

pith:C7ZYLWI3

pith:2018:C7ZYLWI3UUI5W263GVBQXQH6B4

not attested not anchored not stored refs pending

A general approach to approximation theory of operator semigroups

A. Gomilko, S. Kosowicz, Yu. Tomilov

arxiv:1801.06749 v2 · 2018-01-21 · math.FA · math.AP · 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{C7ZYLWI3UUI5W263GVBQXQH6B4}

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	2026-05-18T00:11:18.088294Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17f385d91ba511db6bdb35430bc0fe0f066ae876c9c64ca34bacfbbdb60da19e

Aliases

arxiv: 1801.06749 · arxiv_version: 1801.06749v2 · doi: 10.48550/arxiv.1801.06749 · pith_short_12: C7ZYLWI3UUI5 · pith_short_16: C7ZYLWI3UUI5W263 · pith_short_8: C7ZYLWI3

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/C7ZYLWI3UUI5W263GVBQXQH6B4 \
  | 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: 17f385d91ba511db6bdb35430bc0fe0f066ae876c9c64ca34bacfbbdb60da19e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1208100ad52f2bbe25f0739aae619f238e030a7b17bc7da07e894c4d35eaf79",
    "cross_cats_sorted": [
      "math.AP",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2018-01-21T01:46:33Z",
    "title_canon_sha256": "b600399b34704ab72a032b156ced2c4db4dec21663b779fec0644ffe604fd9af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.06749",
    "kind": "arxiv",
    "version": 2
  }
}