Pith Number

pith:6BGJRUHY

pith:2007:6BGJRUHYQTPOLM56CEG5K4N7PI

not attested not anchored not stored refs pending

Instanton representation of Plebanski gravity. Gravitational instantons from the classical formalism

Eyo Eyo Ita III

arxiv:gr-qc/0703057 v3 · 2007-03-08 · 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{6BGJRUHYQTPOLM56CEG5K4N7PI}

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	2026-05-18T04:02:02.155718Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f04c98d0f884dee5b3be110dd571bf7a1d6fcde878c9136e1e282325877671bf

Aliases

arxiv: gr-qc/0703057 · arxiv_version: gr-qc/0703057v3 · doi: 10.48550/arxiv.gr-qc/0703057 · pith_short_12: 6BGJRUHYQTPO · pith_short_16: 6BGJRUHYQTPOLM56 · pith_short_8: 6BGJRUHY

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/6BGJRUHYQTPOLM56CEG5K4N7PI \
  | 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: f04c98d0f884dee5b3be110dd571bf7a1d6fcde878c9136e1e282325877671bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e34a2fed41dd3bec8270ddf5209cff76e29a7d2103c80c7dafc9c92756428a31",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2007-03-08T12:10:03Z",
    "title_canon_sha256": "384c260b0bd8e856b9fbdec22f27ce0c98015468b5b7742a442c8adaeb02bff3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0703057",
    "kind": "arxiv",
    "version": 3
  }
}