Pith Number

pith:2ZQ6ZWU7

pith:2001:2ZQ6ZWU7RKFQJHBMBZSYQBQFYI

not attested not anchored not stored refs pending

Vacuum Non Singular Black Hole in Tetrad Theory of Gravitation

Gamal G.L. Nashed

arxiv:gr-qc/0109017 v1 · 2001-09-05 · 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{2ZQ6ZWU7RKFQJHBMBZSYQBQFYI}

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	2026-05-18T04:36:19.398291Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d661ecda9f8a8b049c2c0e65880605c227d2c6d7727e70959fb1b58583161621

Aliases

arxiv: gr-qc/0109017 · arxiv_version: gr-qc/0109017v1 · doi: 10.48550/arxiv.gr-qc/0109017 · pith_short_12: 2ZQ6ZWU7RKFQ · pith_short_16: 2ZQ6ZWU7RKFQJHBM · pith_short_8: 2ZQ6ZWU7

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/2ZQ6ZWU7RKFQJHBMBZSYQBQFYI \
  | 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: d661ecda9f8a8b049c2c0e65880605c227d2c6d7727e70959fb1b58583161621

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8850d929c20fb11681bc8f31d7f0c20e3415579c0a34855ebb7206ef6eb72be",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2001-09-05T16:05:43Z",
    "title_canon_sha256": "89f8016e39eae57b0d0c2d6c9d5726d966a6fba640cc446f2fad02bf47205f57"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0109017",
    "kind": "arxiv",
    "version": 1
  }
}