Pith Number

pith:QA4QFUTO

pith:2019:QA4QFUTOCUZXAUANQKNUT6I6MY

not attested not anchored not stored refs pending

Non-singular black holes interiors need physics beyond the standard model

A.J.M. Medved, Ram Brustein

arxiv:1902.07990 v1 · 2019-02-21 · hep-th · 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{QA4QFUTOCUZXAUANQKNUT6I6MY}

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

Formation of Frozen Stars from collapsing matter by tunneling

Receipt and verification

First computed	2026-07-05T00:13:41.956513Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

803902d26e153370500d829b49f91e660a7488ce8596590affcbb4bcb162a565

Aliases

arxiv: 1902.07990 · arxiv_version: 1902.07990v1 · doi: 10.48550/arxiv.1902.07990 · pith_short_12: QA4QFUTOCUZX · pith_short_16: QA4QFUTOCUZXAUAN · pith_short_8: QA4QFUTO

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/QA4QFUTOCUZXAUANQKNUT6I6MY \
  | 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: 803902d26e153370500d829b49f91e660a7488ce8596590affcbb4bcb162a565

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df0e2d899cfcefa1ddc26bf7c7e7115595301c3c8e9f738f8fc79de3b2fe165d",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2019-02-21T12:01:34Z",
    "title_canon_sha256": "88f7e2aafcf58aa2320bc43e728d37a1127814f6e9b7b937189aa7a5cf57fd3f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.07990",
    "kind": "arxiv",
    "version": 1
  }
}