Pith Number

pith:PWKBODGD

pith:2012:PWKBODGDNDBIX22CFIOMYSQT3N

not attested not anchored not stored refs pending

Spectroscopy of a Reissner-Nordstr\"{o}m black hole via an action variable

Wen-Biao Liu, Xiao-Xiong Zeng

arxiv:1204.1699 v2 · 2012-04-08 · 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{PWKBODGDNDBIX22CFIOMYSQT3N}

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	2026-05-18T03:57:26.414393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d94170cc368c28beb422a1ccc4a13db5e55e26b7550ef157806eb83190ea4eb

Aliases

arxiv: 1204.1699 · arxiv_version: 1204.1699v2 · doi: 10.48550/arxiv.1204.1699 · pith_short_12: PWKBODGDNDBI · pith_short_16: PWKBODGDNDBIX22C · pith_short_8: PWKBODGD

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/PWKBODGDNDBIX22CFIOMYSQT3N \
  | 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: 7d94170cc368c28beb422a1ccc4a13db5e55e26b7550ef157806eb83190ea4eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39f8f55cf37a86cc32a6df48e03f50a86495ec709b16b27785e33e9220d28ecc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-04-08T02:27:26Z",
    "title_canon_sha256": "ed0324b826977a40c05db969fc551150e848c569973fc8a6a86b33160bc49ab8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.1699",
    "kind": "arxiv",
    "version": 2
  }
}