pith. sign in
Pith Number

pith:FTSFNEEA

pith:2011:FTSFNEEA24M3M3FASPPDX7VMQS
not attested not anchored not stored refs pending

What is the topology of a Schwarzschild black hole?

Edmundo M. Monte

arxiv:1111.5790 v1 · 2011-11-24 · gr-qc

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{FTSFNEEA24M3M3FASPPDX7VMQS}

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 2026-05-18T01:59:25.786578Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

2ce4569080d719b66ca093de3bfeac84a29743534c4c6262caf62569528d1fad

Aliases

arxiv: 1111.5790 · arxiv_version: 1111.5790v1 · doi: 10.48550/arxiv.1111.5790 · pith_short_12: FTSFNEEA24M3 · pith_short_16: FTSFNEEA24M3M3FA · pith_short_8: FTSFNEEA
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/FTSFNEEA24M3M3FASPPDX7VMQS \
  | 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: 2ce4569080d719b66ca093de3bfeac84a29743534c4c6262caf62569528d1fad
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "a4160a757b442e3b1702bedd21028c59ab08a394c4ad56b7de9186302a9accf5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-11-24T15:04:35Z",
    "title_canon_sha256": "3cbd5d198c6957a92f4d794e15a43213a1fd23e9195dc2e709649640ab11de6a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.5790",
    "kind": "arxiv",
    "version": 1
  }
}