Pith Number

pith:4YYPIFPG

pith:2022:4YYPIFPG7EUSE464H3F4XLZRPZ

not attested not anchored not stored refs pending

The Weyl double copy in vacuum spacetimes with a cosmological constant

Shanzhong Han

arxiv:2205.08654 v2 · 2022-05-17 · gr-qc · astro-ph.HE · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4YYPIFPG7EUSE464H3F4XLZRPZ}

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.

Cited by

2 papers in Pith

Non-topological solitons in biadjoint scalar field theory

Hawking Radiation meets the Double Copy

Receipt and verification

First computed	2026-07-05T05:07:43.347885Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e630f415e6f9292273dc3ecbcbaf317e72068a8669e263c1e72c6a3a173a6e95

Aliases

arxiv: 2205.08654 · arxiv_version: 2205.08654v2 · doi: 10.48550/arxiv.2205.08654 · pith_short_12: 4YYPIFPG7EUS · pith_short_16: 4YYPIFPG7EUSE464 · pith_short_8: 4YYPIFPG

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/4YYPIFPG7EUSE464H3F4XLZRPZ \
  | 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: e630f415e6f9292273dc3ecbcbaf317e72068a8669e263c1e72c6a3a173a6e95

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d93b9bc2e8a1428aadccfa9771fe7e1b19d23ecb4a2fecc81a90ea4bf36e981",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2022-05-17T22:42:10Z",
    "title_canon_sha256": "136a039bf04bff61d2ab2133f72a5bd53c38ca29ec63a3e6e296cc02de9376ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.08654",
    "kind": "arxiv",
    "version": 2
  }
}