Pith Number

pith:4IPHYNFS

pith:2015:4IPHYNFS23374IAUL3WCNV2D5B

not attested not anchored not stored refs pending

Sharp bounds of constants in Poincare type inequalities for polygonal domains

Sergey Repin, Svetlana Matculevich

arxiv:1504.03166 v6 · 2015-04-07 · 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{4IPHYNFS23374IAUL3WCNV2D5B}

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	2026-05-18T01:21:19.661235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e21e7c34b2d6f7fe20145eec26d743e852a1901355a4eb30a4d39cfdee7ed82b

Aliases

arxiv: 1504.03166 · arxiv_version: 1504.03166v6 · doi: 10.48550/arxiv.1504.03166 · pith_short_12: 4IPHYNFS2337 · pith_short_16: 4IPHYNFS23374IAU · pith_short_8: 4IPHYNFS

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/4IPHYNFS23374IAUL3WCNV2D5B \
  | 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: e21e7c34b2d6f7fe20145eec26d743e852a1901355a4eb30a4d39cfdee7ed82b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2a2723400a852dc43ac6e443cec7686e58c2269775c51e524f378d212c65618",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-04-07T06:59:11Z",
    "title_canon_sha256": "abfe8ae08efc5c6a38a9818ed84f4274fad9632baaae9120b4985c9ec774be26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03166",
    "kind": "arxiv",
    "version": 6
  }
}