Pith Number

pith:HW4MU67R

pith:2013:HW4MU67RYJ4RAAODZQPTTN2GY4

not attested not anchored not stored refs pending

Distinguishing black holes from naked singularities through their accretion disk properties

Daniele Malafarina, Pankaj S. Joshi, Ramesh Narayan

arxiv:1304.7331 v2 · 2013-04-27 · gr-qc · astro-ph.CO · 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{HW4MU67RYJ4RAAODZQPTTN2GY4}

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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.

Cited by

2 papers in Pith

Analytic thin disks and rings in a class of nonasymptotically flat static spacetimes

Energy conditions in static, spherically symmetric spacetimes and effective geometries

Receipt and verification

First computed	2026-05-18T01:50:21.123457Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3db8ca7bf1c2791001c3cc1f39b746c7260002479a9cd1932ea6d9fa70df5150

Aliases

arxiv: 1304.7331 · arxiv_version: 1304.7331v2 · doi: 10.48550/arxiv.1304.7331 · pith_short_12: HW4MU67RYJ4R · pith_short_16: HW4MU67RYJ4RAAOD · pith_short_8: HW4MU67R

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/HW4MU67RYJ4RAAODZQPTTN2GY4 \
  | 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: 3db8ca7bf1c2791001c3cc1f39b746c7260002479a9cd1932ea6d9fa70df5150

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89e35b09c2ab64ec22aa52abf805355d757c5c93538f21479ac9a5576a294675",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-04-27T06:21:23Z",
    "title_canon_sha256": "59510a2586f29419a1d7795909755a384fcbb28dc929fce5a006a05f7b881975"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.7331",
    "kind": "arxiv",
    "version": 2
  }
}