Pith Number

pith:N7NQDQXR

pith:2012:N7NQDQXRQJKZL4SD346CJ2SLMU

not attested not anchored not stored refs pending

Can we distinguish between black holes and wormholes by their Einstein-ring systems?

Kohji Yajima, Naoki Tsukamoto, Tomohiro Harada

arxiv:1207.0047 v3 · 2012-06-30 · gr-qc · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N7NQDQXRQJKZL4SD346CJ2SLMU}

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.

Cited by

3 papers in Pith

Observational signatures of negative mass wormholes through their shadows

Dymnikova-Schwinger quantum-corrected slowly rotating wormholes: Photon and spinning particle dynamics

Resonant transmission of scalar waves through rotating traversable wormhole

Receipt and verification

First computed	2026-05-18T03:39:05.014990Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6fdb01c2f1825595f243df3c24ea4b653a6ca85c0dae11dfc3dace92b9757233

Aliases

arxiv: 1207.0047 · arxiv_version: 1207.0047v3 · doi: 10.48550/arxiv.1207.0047 · pith_short_12: N7NQDQXRQJKZ · pith_short_16: N7NQDQXRQJKZL4SD · pith_short_8: N7NQDQXR

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/N7NQDQXRQJKZL4SD346CJ2SLMU \
  | 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: 6fdb01c2f1825595f243df3c24ea4b653a6ca85c0dae11dfc3dace92b9757233

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4cffc2a30ecca3dceb49b037567644c69f9381a3b723dcaafc5129510e7734b9",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-06-30T04:55:30Z",
    "title_canon_sha256": "e035e5c0d6b040dbc2d8e5e8574ab5eae5997cf1d5ac924f58a91e797bfd91c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.0047",
    "kind": "arxiv",
    "version": 3
  }
}