Pith Number

pith:5AMWRDVY

pith:2018:5AMWRDVYIZTTUOAYIQJZCARIDU

not attested not anchored not stored refs pending

A no-go theorem for regular black holes

Stefano Chinaglia

arxiv:1805.03899 v1 · 2018-05-10 · 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{5AMWRDVYIZTTUOAYIQJZCARIDU}

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

1 paper in Pith

Horizon-scale tests of gravity theories and fundamental physics from the Event Horizon Telescope image of Sagittarius A$^*$

Receipt and verification

First computed	2026-05-18T00:16:16.423468Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e819688eb846673a381844139102281d0c9547c621819daffe8b5e2efb24960a

Aliases

arxiv: 1805.03899 · arxiv_version: 1805.03899v1 · doi: 10.48550/arxiv.1805.03899 · pith_short_12: 5AMWRDVYIZTT · pith_short_16: 5AMWRDVYIZTTUOAY · pith_short_8: 5AMWRDVY

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/5AMWRDVYIZTTUOAYIQJZCARIDU \
  | 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: e819688eb846673a381844139102281d0c9547c621819daffe8b5e2efb24960a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24dab098d324d342f804625117841fa32456457b4732b0757a90d4d2b013de5a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-05-10T09:14:44Z",
    "title_canon_sha256": "c5ad19cbac47ba4e3f12c5727ab2392ef7bc38ec9a9b8554c80f9268c139b663"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.03899",
    "kind": "arxiv",
    "version": 1
  }
}