Pith Number

pith:23MLCQHR

pith:2018:23MLCQHRILLDYLTAQS2UCOHXIQ

not attested not anchored not stored refs pending

Rigidity of Einstein metrics as critical points of some quadratic curvature functionals on complete manifolds

Guangyue Huang, Xingxiao Li, Yu Chen

arxiv:1804.10748 v1 · 2018-04-28 · 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{23MLCQHRILLDYLTAQS2UCOHXIQ}

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	2026-05-18T00:17:15.670958Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6d8b140f142d63c2e6084b54138f7440ba5bc8e4e6f1b81c6664de8b2d5ab80

Aliases

arxiv: 1804.10748 · arxiv_version: 1804.10748v1 · doi: 10.48550/arxiv.1804.10748 · pith_short_12: 23MLCQHRILLD · pith_short_16: 23MLCQHRILLDYLTA · pith_short_8: 23MLCQHR

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/23MLCQHRILLDYLTAQS2UCOHXIQ \
  | 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: d6d8b140f142d63c2e6084b54138f7440ba5bc8e4e6f1b81c6664de8b2d5ab80

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "873c2caeab67e85ebaae111ba98bc7c27d7b17bd49af9c949b8f9f66c4de9f16",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-04-28T06:26:05Z",
    "title_canon_sha256": "ea8e9fd60f2f9b5e0c5a735a35b1d1575f99f79701ee883021b838e4ce6995ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.10748",
    "kind": "arxiv",
    "version": 1
  }
}