Pith Number

pith:WMPA34PY

pith:2021:WMPA34PYAGM3ODBP3WFXZISU7U

not attested not anchored not stored refs pending

Ultimate fate of apparent horizons during a binary black hole merger II: Horizons weaving back and forth in time

Daniel Pook-Kolb, Ivan Booth, Robie A. Hennigar

arxiv:2104.11344 v1 · 2021-04-22 · 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{WMPA34PYAGM3ODBP3WFXZISU7U}

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

4 papers in Pith

Interior marginally outer trapped surfaces in Hayward black holes

Cusp Formation in Merging Black Hole Horizons

Thermodynamics of dynamical black holes beyond perturbation theory

Receipt and verification

First computed	2026-07-05T03:28:15.548440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b31e0df1f80199b70c2fdd8b7ca254fd15436467a0f970164056f7c74fc4d37d

Aliases

arxiv: 2104.11344 · arxiv_version: 2104.11344v1 · doi: 10.48550/arxiv.2104.11344 · pith_short_12: WMPA34PYAGM3 · pith_short_16: WMPA34PYAGM3ODBP · pith_short_8: WMPA34PY

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/WMPA34PYAGM3ODBP3WFXZISU7U \
  | 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: b31e0df1f80199b70c2fdd8b7ca254fd15436467a0f970164056f7c74fc4d37d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "319398da951cae9c9ce90e042a404ded9f465f2fd9b9e03e9ca96f382521bfdf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-04-22T22:57:22Z",
    "title_canon_sha256": "1b94fff0e1c214a59ef2fc4d850ba31d3efcdbfc329a47a8caa022e19c5670cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.11344",
    "kind": "arxiv",
    "version": 1
  }
}