Pith Number

pith:E7H62RNS

pith:2014:E7H62RNSANKAGCHDF55PO5DDOR

not attested not anchored not stored refs pending

Constraints on a charge in the Reissner--Nordstr\"om metric for the black hole at the Galactic Center

Alexander F. Zakharov

arxiv:1407.7457 v1 · 2014-07-24 · gr-qc · astro-ph.GA · astro-ph.HE · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E7H62RNSANKAGCHDF55PO5DDOR}

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	2026-07-05T03:03:23.207567Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27cfed45b203540308e32f7af774637467ebbb7a2e0039ef8846756591a8d5ae

Aliases

arxiv: 1407.7457 · arxiv_version: 1407.7457v1 · doi: 10.48550/arxiv.1407.7457 · pith_short_12: E7H62RNSANKA · pith_short_16: E7H62RNSANKAGCHD · pith_short_8: E7H62RNS

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/E7H62RNSANKAGCHDF55PO5DDOR \
  | 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: 27cfed45b203540308e32f7af774637467ebbb7a2e0039ef8846756591a8d5ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a49edf9bcb4116c589d32fe359ddb6f03650d7e67510d630afeda8de31d421fb",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-07-24T15:11:34Z",
    "title_canon_sha256": "3be1ed015948a7614a4caf1d266fee4c6d7188079feba72bc3a68850d85acf4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.7457",
    "kind": "arxiv",
    "version": 1
  }
}