Pith Number

pith:CVUGNADP

pith:2013:CVUGNADP2BCTYYZZ2BIEXLT5EU

not attested not anchored not stored refs pending

A priori estimates for free boundary problem of incompressible inviscid magnetohydrodynamic flows

Chengchun Hao, Tao Luo

arxiv:1301.7123 v1 · 2013-01-30 · 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{CVUGNADP2BCTYYZZ2BIEXLT5EU}

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	2026-05-18T02:53:41.602421Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

156866806fd0453c6339d0504bae7d250ada8ce31a43c4ca2f12c5dd144b8d37

Aliases

arxiv: 1301.7123 · arxiv_version: 1301.7123v1 · doi: 10.48550/arxiv.1301.7123 · pith_short_12: CVUGNADP2BCT · pith_short_16: CVUGNADP2BCTYYZZ · pith_short_8: CVUGNADP

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/CVUGNADP2BCTYYZZ2BIEXLT5EU \
  | 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: 156866806fd0453c6339d0504bae7d250ada8ce31a43c4ca2f12c5dd144b8d37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7121210220b43fc6cea25e4ae4513aba23ed8c7737ffffc27a67213466f3c30e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-01-30T02:19:14Z",
    "title_canon_sha256": "0ac82368ac15219287a78df0cbe38dc63f37928ebe06539257569af17648b372"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.7123",
    "kind": "arxiv",
    "version": 1
  }
}