Pith Number

pith:7FLJB6NG

pith:2014:7FLJB6NGDSM62YWWR35JJ2TN66

not attested not anchored not stored refs pending

Regularity for weak solutions to nondiagonal quasilinear degenerate elliptic systems

Pengcheng Niu, Yan Dong

arxiv:1404.6425 v1 · 2014-04-25 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7FLJB6NGDSM62YWWR35JJ2TN66}

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	2026-05-18T02:53:16.501304Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f95690f9a61c99ed62d68efa94ea6df7adbf5cc2e80b1e82efa0936d279bb7df

Aliases

arxiv: 1404.6425 · arxiv_version: 1404.6425v1 · doi: 10.48550/arxiv.1404.6425 · pith_short_12: 7FLJB6NGDSM6 · pith_short_16: 7FLJB6NGDSM62YWW · pith_short_8: 7FLJB6NG

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/7FLJB6NGDSM62YWWR35JJ2TN66 \
  | 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: f95690f9a61c99ed62d68efa94ea6df7adbf5cc2e80b1e82efa0936d279bb7df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b5d7750c86b0f853a0a09f96158cc351000fff1695c20d280915de86ee73880",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2014-04-25T14:21:35Z",
    "title_canon_sha256": "095b60724620fe2b960b46c8642d0de91e9bdac94f3417f31beffa5603e00a4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.6425",
    "kind": "arxiv",
    "version": 1
  }
}