Pith Number

pith:N4J6GALO

pith:2018:N4J6GALOPBU7GPFLQ6O6C7GZYG

not attested not anchored not stored refs pending

On Variational Properties of Quadratic Curvature Functionals

Lisheng Wang, Weimin Sheng

arxiv:1801.02017 v1 · 2018-01-06 · 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{N4J6GALOPBU7GPFLQ6O6C7GZYG}

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	2026-05-18T00:26:35.183552Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f13e3016e7869f33cab879de17cd9c1a12b5b6a66917bdffb44a8bb9f03a011

Aliases

arxiv: 1801.02017 · arxiv_version: 1801.02017v1 · doi: 10.48550/arxiv.1801.02017 · pith_short_12: N4J6GALOPBU7 · pith_short_16: N4J6GALOPBU7GPFL · pith_short_8: N4J6GALO

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/N4J6GALOPBU7GPFLQ6O6C7GZYG \
  | 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: 6f13e3016e7869f33cab879de17cd9c1a12b5b6a66917bdffb44a8bb9f03a011

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48bd4582f054605d52932f619d7fce1f80c1896509ecda59da45ee13836de6a3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-01-06T14:03:12Z",
    "title_canon_sha256": "0672e4bc8c5a34a8ae4622034de9f758cd0bdce438f70898801b052f439c534b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.02017",
    "kind": "arxiv",
    "version": 1
  }
}