Pith Number

pith:OAJP2HOR

pith:2020:OAJP2HORZ7AY5BOUFQ2HYDBUTW

not attested not anchored not stored refs pending

Classical Gravitational Self-Energy from Double Copy

Gabriel Luz Almeida, Riccardo Sturani, Stefano Foffa

arxiv:2008.06195 v1 · 2020-08-14 · gr-qc · 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{OAJP2HORZ7AY5BOUFQ2HYDBUTW}

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	2026-07-05T01:58:42.028686Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7012fd1dd1cfc18e85d42c347c0c349db55b1c8d25cea2170a1bf5c21e7140b2

Aliases

arxiv: 2008.06195 · arxiv_version: 2008.06195v1 · doi: 10.48550/arxiv.2008.06195 · pith_short_12: OAJP2HORZ7AY · pith_short_16: OAJP2HORZ7AY5BOU · pith_short_8: OAJP2HOR

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/OAJP2HORZ7AY5BOUFQ2HYDBUTW \
  | 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: 7012fd1dd1cfc18e85d42c347c0c349db55b1c8d25cea2170a1bf5c21e7140b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8bc4e6dea19658652f96ea182661d2ce9e5ea3834ae8b2ac06ab93e4a00fdf26",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2020-08-14T05:31:07Z",
    "title_canon_sha256": "29727dbcfc0611c917adddf957c7a27f2ac6ed6360a9bc8fe3d9e080bec70f6e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.06195",
    "kind": "arxiv",
    "version": 1
  }
}