Pith Number

pith:KOOBFBP5

pith:2026:KOOBFBP5U4DBIP3IRBAONCM4PW

not attested not anchored not stored refs pending

Formation of extremal regular black holes

Johanna Borissova

arxiv:2608.02908 v1 · 2026-08-03 · 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{KOOBFBP5U4DBIP3IRBAONCM4PW}

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

Modified Double Copy for Quasitopological Gravity with Matter

Receipt and verification

First computed	2026-08-05T00:43:35.686536Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

539c1285fda706143f688840e6899c7d92b744691a3d52e374c0264037ed99ca

Aliases

arxiv: 2608.02908 · arxiv_version: 2608.02908v1 · doi: 10.48550/arxiv.2608.02908 · pith_short_12: KOOBFBP5U4DB · pith_short_16: KOOBFBP5U4DBIP3I · pith_short_8: KOOBFBP5

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/KOOBFBP5U4DBIP3IRBAONCM4PW \
  | 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: 539c1285fda706143f688840e6899c7d92b744691a3d52e374c0264037ed99ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92c06e79e00b053dc0a263c3a1c26426e0d64ebd0697376d948305afbcd299c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-08-03T21:46:51Z",
    "title_canon_sha256": "5732286930eaf77a9be7aed7cdd75a8c96a2a431ffd2472fbdafd34adc4f6bb9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.02908",
    "kind": "arxiv",
    "version": 1
  }
}