Pith Number

pith:XB47XINN

pith:2014:XB47XINNPD6R7JXAFTCQPPO7R3

not attested not anchored not stored refs pending

Bounded Approximation Property for Sobolev spaces on simply-connected planar domains

Maria Roginskaya, Michal Wojciechowski

arxiv:1401.7131 v1 · 2014-01-28 · math.FA · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XB47XINNPD6R7JXAFTCQPPO7R3}

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	2026-05-18T03:00:50.767360Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b879fba1ad78fd1fa6e02cc507bddf8efb0936dcc6ffc8db5a93c0c14bc79a93

Aliases

arxiv: 1401.7131 · arxiv_version: 1401.7131v1 · doi: 10.48550/arxiv.1401.7131 · pith_short_12: XB47XINNPD6R · pith_short_16: XB47XINNPD6R7JXA · pith_short_8: XB47XINN

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/XB47XINNPD6R7JXAFTCQPPO7R3 \
  | 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: b879fba1ad78fd1fa6e02cc507bddf8efb0936dcc6ffc8db5a93c0c14bc79a93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b952b78f94c0f32f6c2e3449bf224772686422139366ee7a593bdffdac952b52",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2014-01-28T10:37:10Z",
    "title_canon_sha256": "6416ac3567090567731006912fa38733dcdc3d3f3266c6c6e2b7d3958248f883"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.7131",
    "kind": "arxiv",
    "version": 1
  }
}