Pith Number

pith:ZGOJO3ML

pith:2019:ZGOJO3MLRQWUHRYJJKVUAXDIBG

not attested not anchored not stored refs pending

$C_0$-positivity and a classification of closed three-dimensional CR torsion solitons

Chih-Wei Chen, Huai-Dong Cao, Shu-Cheng Chang

arxiv:1902.11264 v1 · 2019-02-28 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZGOJO3MLRQWUHRYJJKVUAXDIBG}

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	2026-05-17T23:52:25.073529Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c99c976d8b8c2d43c7094aab405c68099d89382e4fc6c05fe3ca47aa6eff2583

Aliases

arxiv: 1902.11264 · arxiv_version: 1902.11264v1 · doi: 10.48550/arxiv.1902.11264 · pith_short_12: ZGOJO3MLRQWU · pith_short_16: ZGOJO3MLRQWUHRYJ · pith_short_8: ZGOJO3ML

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/ZGOJO3MLRQWUHRYJJKVUAXDIBG \
  | 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: c99c976d8b8c2d43c7094aab405c68099d89382e4fc6c05fe3ca47aa6eff2583

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae6965cedd51a0cd1ef32d72b6e384a982eb036b55983cdabb2ad24261a6e588",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-02-28T18:11:04Z",
    "title_canon_sha256": "9800965ae11802449746132104e453620e8e9a87edb7c9c3621008c18d27b8a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.11264",
    "kind": "arxiv",
    "version": 1
  }
}