Pith Number

pith:UMOEUXMF

pith:2017:UMOEUXMFHK4DP7XYEPQMPAU2ZO

not attested not anchored not stored refs pending

Corner singularity and its application in regular parameters optimization: technique renovation for Grad-Shafranov reconstruction

Chongyin Li, Huijun Li, Jie Xiang, Shudao Zhou, Xueshang Feng, Yingying Huang

arxiv:1712.02479 v1 · 2017-12-07 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UMOEUXMFHK4DP7XYEPQMPAU2ZO}

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	2026-05-18T00:28:33.945814Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a31c4a5d853ab837fef823e0c7829acb895957016879e406cf5eab427d914d97

Aliases

arxiv: 1712.02479 · arxiv_version: 1712.02479v1 · doi: 10.48550/arxiv.1712.02479 · pith_short_12: UMOEUXMFHK4D · pith_short_16: UMOEUXMFHK4DP7XY · pith_short_8: UMOEUXMF

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/UMOEUXMFHK4DP7XYEPQMPAU2ZO \
  | 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: a31c4a5d853ab837fef823e0c7829acb895957016879e406cf5eab427d914d97

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f170632ae50ba895c9ce681e75c895e623f8506dd9a45a3fedfde681b96d8b84",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2017-12-07T03:12:42Z",
    "title_canon_sha256": "889edf26ec7924665cf2e777979da729bcecd7f75fec8278748c1c28226ce2f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.02479",
    "kind": "arxiv",
    "version": 1
  }
}