Pith Number

pith:JPR4P63Y

pith:2016:JPR4P63YXCBY4RCFQ6AIQISEUW

not attested not anchored not stored refs pending

Quasilocal energy and surface geometry of Kerr spacetime

Chengjie Yu, Jian-Liang Liu

arxiv:1606.08177 v4 · 2016-06-27 · 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{JPR4P63YXCBY4RCFQ6AIQISEUW}

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	2026-05-18T00:42:51.712737Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4be3c7fb78b8838e44458780882244a5a759e8325ecd611ab78ec979adc56d1f

Aliases

arxiv: 1606.08177 · arxiv_version: 1606.08177v4 · doi: 10.48550/arxiv.1606.08177 · pith_short_12: JPR4P63YXCBY · pith_short_16: JPR4P63YXCBY4RCF · pith_short_8: JPR4P63Y

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/JPR4P63YXCBY4RCFQ6AIQISEUW \
  | 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: 4be3c7fb78b8838e44458780882244a5a759e8325ecd611ab78ec979adc56d1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e436987bd0ff3b7bb2d0006a801e7607602b91ec11843ab21089d0f22ab7124",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2016-06-27T09:42:38Z",
    "title_canon_sha256": "c44bd877728e3e51ac5afac4ece0798691e7a9c4dcc6c1257a8c04c1577b53cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.08177",
    "kind": "arxiv",
    "version": 4
  }
}