Pith Number

pith:SO4K7LOY

pith:2019:SO4K7LOY3EWBUQR6TXVVWEZOJX

not attested not anchored not stored refs pending

The Marolf-Ori singularity inside fast spinning black holes

Gaurav Khanna, Lior M. Burko

arxiv:1901.03413 v1 · 2019-01-10 · 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{SO4K7LOY3EWBUQR6TXVVWEZOJX}

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.

Receipt and verification

First computed	2026-05-17T23:46:53.041209Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93b8afadd8d92c1a423e9deb5b132e4de748665f5d80a87277ec493a3a96bdbd

Aliases

arxiv: 1901.03413 · arxiv_version: 1901.03413v1 · doi: 10.48550/arxiv.1901.03413 · pith_short_12: SO4K7LOY3EWB · pith_short_16: SO4K7LOY3EWBUQR6 · pith_short_8: SO4K7LOY

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/SO4K7LOY3EWBUQR6TXVVWEZOJX \
  | 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: 93b8afadd8d92c1a423e9deb5b132e4de748665f5d80a87277ec493a3a96bdbd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98852c89aaa8a69ba1c065ba0ad0172ede9a696e78cd1c413f99ff5c7ca4e353",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-01-10T22:04:59Z",
    "title_canon_sha256": "c80f09c647f1833ab22425e8c3a7a65011ab7e4304b0f8bf0e867b2eaca396d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.03413",
    "kind": "arxiv",
    "version": 1
  }
}