Pith Number

pith:M66HCK3M

pith:2003:M66HCK3MPIFIWMS5PGRMKCHWUC

not attested not anchored not stored refs pending

Hawking radiation from spherically symmetrical gravitational collapse to an extremal R-N black hole for a charged scalar field

Chongshou Gao, Hongbao Zhang, Zhoujian Cao

arxiv:gr-qc/0308064 v1 · 2003-08-20 · 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{M66HCK3MPIFIWMS5PGRMKCHWUC}

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	2026-05-18T00:25:46.655336Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67bc712b6c7a0a8b325d79a2c508f6a09c955713a19e5f0732a2d0496cb44cc3

Aliases

arxiv: gr-qc/0308064 · arxiv_version: gr-qc/0308064v1 · doi: 10.48550/arxiv.gr-qc/0308064 · pith_short_12: M66HCK3MPIFI · pith_short_16: M66HCK3MPIFIWMS5 · pith_short_8: M66HCK3M

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/M66HCK3MPIFIWMS5PGRMKCHWUC \
  | 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: 67bc712b6c7a0a8b325d79a2c508f6a09c955713a19e5f0732a2d0496cb44cc3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3861093b58efacd67da68847c0e036421d559c0c9cbadc8de88ffdfbf2d8f61",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2003-08-20T08:55:23Z",
    "title_canon_sha256": "2dec907dd73f2c9cdf4ef653ccef4046c51cf3f41ac6ec53c7884c174347ad80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0308064",
    "kind": "arxiv",
    "version": 1
  }
}