Pith Number

pith:NTTSDBYL

pith:2019:NTTSDBYLKGBSF5XMGL6OVQIKGW

not attested not anchored not stored refs pending

K\"ahler-Ricci Shrinkers and Ancient Solutions with Nonnegative Orthogonal Bisectional Curvature

Lei Ni, Xiaolong Li

arxiv:1903.02615 v1 · 2019-03-06 · 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{NTTSDBYLKGBSF5XMGL6OVQIKGW}

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	2026-05-17T23:51:51.698218Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ce721870b518322f6ec32fceac10a35907ada1d391f659a0b0369c8791490d5

Aliases

arxiv: 1903.02615 · arxiv_version: 1903.02615v1 · doi: 10.48550/arxiv.1903.02615 · pith_short_12: NTTSDBYLKGBS · pith_short_16: NTTSDBYLKGBSF5XM · pith_short_8: NTTSDBYL

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/NTTSDBYLKGBSF5XMGL6OVQIKGW \
  | 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: 6ce721870b518322f6ec32fceac10a35907ada1d391f659a0b0369c8791490d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d547d89640333aa57f9ab9e2468b77efe5924475293adb49db2e4df0c8c47ba",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-03-06T21:13:18Z",
    "title_canon_sha256": "949cf9b113b3db950a16760001f0bf5cac0eba230d2799f8fe0fe1b897f31c5e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.02615",
    "kind": "arxiv",
    "version": 1
  }
}