Pith Number

pith:PLAVWGI4

pith:2012:PLAVWGI4FRA27LO3OPIWNGDK2V

not attested not anchored not stored refs pending

Some Unique Constants Associated with Extremal Black Holes

(2) Christ Junior College, Bangalore, Bangalore), C. Sivaram (1), Kenath Arun (2) ((1) Indian Institute of Astrophysics

arxiv:1202.1275 v1 · 2012-02-04 · physics.gen-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PLAVWGI4FRA27LO3OPIWNGDK2V}

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	2026-05-18T04:02:53.823493Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ac15b191c2c41afaddb73d166986ad559ea7334d0347ba5ed79a299a3137afe

Aliases

arxiv: 1202.1275 · arxiv_version: 1202.1275v1 · doi: 10.48550/arxiv.1202.1275 · pith_short_12: PLAVWGI4FRA2 · pith_short_16: PLAVWGI4FRA27LO3 · pith_short_8: PLAVWGI4

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/PLAVWGI4FRA27LO3OPIWNGDK2V \
  | 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: 7ac15b191c2c41afaddb73d166986ad559ea7334d0347ba5ed79a299a3137afe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abbff2211c7a01891e3253da285bd4ba42a2f2a4cffab02eff2e5d048e030a9d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2012-02-04T07:34:33Z",
    "title_canon_sha256": "2a0fd12b592ad1e4288e95518007508e622a3960a4dac0dfc75cd0a9fe562d2b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.1275",
    "kind": "arxiv",
    "version": 1
  }
}