Pith Number

pith:MPKHIQII

pith:2019:MPKHIQIIKH4FQ6P525BBYN3PW5

not attested not anchored not stored refs pending

Universal Black Holes

Marcello Ortaggio, Sigbj{\o}rn Hervik

arxiv:1907.08788 v2 · 2019-07-20 · gr-qc · 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{MPKHIQIIKH4FQ6P525BBYN3PW5}

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

On mass inflation and thin shells in quasi-topological gravity

Receipt and verification

First computed	2026-07-05T00:42:19.839930Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63d474410851f85879fdd7421c376fb767f16e467ca492ca845aaf833f18be24

Aliases

arxiv: 1907.08788 · arxiv_version: 1907.08788v2 · doi: 10.48550/arxiv.1907.08788 · pith_short_12: MPKHIQIIKH4F · pith_short_16: MPKHIQIIKH4FQ6P5 · pith_short_8: MPKHIQII

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/MPKHIQIIKH4FQ6P525BBYN3PW5 \
  | 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: 63d474410851f85879fdd7421c376fb767f16e467ca492ca845aaf833f18be24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bea11960272192b6524a5376a23a5248186f4e084acc4e0dc7fadb01a1987a5a",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-07-20T09:59:08Z",
    "title_canon_sha256": "efea75c0937162d5d4a5be09913de56942f0a0e76104d801ea884a05d8df38a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.08788",
    "kind": "arxiv",
    "version": 2
  }
}