Pith Number

pith:X7IVJO5Z

pith:1997:X7IVJO5ZCUCG4WH7CABVG3SVB6

not attested not anchored not stored refs pending

Tolman's energy of a stringy charged black hole

S. S. Xulu

arxiv:gr-qc/9712100 v1 · 1997-12-31 · 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{X7IVJO5ZCUCG4WH7CABVG3SVB6}

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	2026-05-18T02:37:28.289945Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfd154bbb915046e58ff1003536e550f8641baec4b06dfc2ce2ed7fa16fd3366

Aliases

arxiv: gr-qc/9712100 · arxiv_version: gr-qc/9712100v1 · doi: 10.48550/arxiv.gr-qc/9712100 · pith_short_12: X7IVJO5ZCUCG · pith_short_16: X7IVJO5ZCUCG4WH7 · pith_short_8: X7IVJO5Z

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/X7IVJO5ZCUCG4WH7CABVG3SVB6 \
  | 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: bfd154bbb915046e58ff1003536e550f8641baec4b06dfc2ce2ed7fa16fd3366

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f83d1dafd5cfea86b95b9529c33d18ba2eb475ef777e92cb60114dad27ddc534",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1997-12-31T08:26:43Z",
    "title_canon_sha256": "f7d5a68186269186012553f0eb92a8ca4787fda0dd96acff87a19a30fa93d080"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9712100",
    "kind": "arxiv",
    "version": 1
  }
}