Pith Number

pith:MJU2UJG3

pith:2026:MJU2UJG3QMATJAGAKEB24WS7VF

not attested not anchored not stored refs pending

Modified Double Copy for Quasitopological Gravity with Matter

Valeri P. Frolov

arxiv:2608.08988 v1 · 2026-08-10 · 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{MJU2UJG3QMATJAGAKEB24WS7VF}

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	2026-08-11T01:25:54.923321Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6269aa24db83013480c05103ae5a5fa941ed666298bb9482a1aeb9fc2ad8ee2f

Aliases

arxiv: 2608.08988 · arxiv_version: 2608.08988v1 · doi: 10.48550/arxiv.2608.08988 · pith_short_12: MJU2UJG3QMAT · pith_short_16: MJU2UJG3QMATJAGA · pith_short_8: MJU2UJG3

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/MJU2UJG3QMATJAGAKEB24WS7VF \
  | 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: 6269aa24db83013480c05103ae5a5fa941ed666298bb9482a1aeb9fc2ad8ee2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9dcbdf0af56233611b7afc6c4f725148597bf9af0b66e6e77bdecf2d256de7a5",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-08-10T01:15:45Z",
    "title_canon_sha256": "92b00457a03153e3beacb61326d99470a8eb038c9ece23b06eba51f0c904e9e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.08988",
    "kind": "arxiv",
    "version": 1
  }
}