Pith Number

pith:GZWXXMW7

pith:2015:GZWXXMW7JFHDWMEDFJDGAL4ZYB

not attested not anchored not stored refs pending

Penrose's quasi-local mass for asymptotically anti-de Sitter space-times

Paul Tod, Ron Kelly

arxiv:1505.00214 v1 · 2015-05-01 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GZWXXMW7JFHDWMEDFJDGAL4ZYB}

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	2026-05-18T02:17:13.111807Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

366d7bb2df494e3b30832a46602f99c0438f42f73f03e490f70e0f142d2ca792

Aliases

arxiv: 1505.00214 · arxiv_version: 1505.00214v1 · doi: 10.48550/arxiv.1505.00214 · pith_short_12: GZWXXMW7JFHD · pith_short_16: GZWXXMW7JFHDWMED · pith_short_8: GZWXXMW7

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/GZWXXMW7JFHDWMEDFJDGAL4ZYB \
  | 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: 366d7bb2df494e3b30832a46602f99c0438f42f73f03e490f70e0f142d2ca792

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5f3db42794fb1e2c65f42c8efd810da6549328a5981995673c156e94e82ecd3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-05-01T16:33:25Z",
    "title_canon_sha256": "4b0217eaaa17310849fc5aa64db80faaf225b050865807abcaac233e3cc4063e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.00214",
    "kind": "arxiv",
    "version": 1
  }
}