Pith Number

pith:347KV7GU

pith:2009:347KV7GUA7VHCAHU236GCBWHNM

not attested not anchored not stored refs pending

Spherically symmetric black holes in minimally modified self-dual gravity

Akihiro Ishibashi, Simone Speziale

arxiv:0904.3914 v3 · 2009-04-24 · 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{347KV7GUA7VHCAHU236GCBWHNM}

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	2026-07-04T15:47:39.918474Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df3eaafcd407ea7100f4d6fc6106c76b3da93e3f18bc659433bcc67db90b5b26

Aliases

arxiv: 0904.3914 · arxiv_version: 0904.3914v3 · doi: 10.48550/arxiv.0904.3914 · pith_short_12: 347KV7GUA7VH · pith_short_16: 347KV7GUA7VHCAHU · pith_short_8: 347KV7GU

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/347KV7GUA7VHCAHU236GCBWHNM \
  | 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: df3eaafcd407ea7100f4d6fc6106c76b3da93e3f18bc659433bcc67db90b5b26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48ce5def855f950a155040eac86d1473ccb6af98b99a046afc3b3049abbd8cd2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-04-24T18:10:42Z",
    "title_canon_sha256": "83adc0466db8bcb3cee893f233fbe5cc69593ac971074fde5ca05eeb8c119d03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.3914",
    "kind": "arxiv",
    "version": 3
  }
}