Pith Number

pith:7EGOE3PI

pith:2021:7EGOE3PIIDXH2DELFZ6ZUEMIIO

not attested not anchored not stored refs pending

Uniform regularity estimates and invisicid limit for the compressible non-resistive magnetohydrodynamics system

Feng Xie, Shengxin Li, Xiufang Cui

arxiv:2108.12969 v1 · 2021-08-30 · 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{7EGOE3PIIDXH2DELFZ6ZUEMIIO}

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	2026-07-05T03:09:48.387829Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f90ce26de840ee7d0c8b2e7d9a118843bb68dbbbe87ba5fe5528821baa77b9e0

Aliases

arxiv: 2108.12969 · arxiv_version: 2108.12969v1 · doi: 10.48550/arxiv.2108.12969 · pith_short_12: 7EGOE3PIIDXH · pith_short_16: 7EGOE3PIIDXH2DEL · pith_short_8: 7EGOE3PI

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/7EGOE3PIIDXH2DELFZ6ZUEMIIO \
  | 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: f90ce26de840ee7d0c8b2e7d9a118843bb68dbbbe87ba5fe5528821baa77b9e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "591021c4c0eae78f170122fc78f04a67db8383c517db481fa33096beb4b3aab5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2021-08-30T03:01:31Z",
    "title_canon_sha256": "1c87ea9108f151884d49c1f31602d652981819ed296c92c5817002200130bd54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.12969",
    "kind": "arxiv",
    "version": 1
  }
}