pith. sign in
Pith Number

pith:K3WP7Q6Y

pith:2010:K3WP7Q6Y7QUKINF2ZLZYRWT464
not attested not anchored not stored refs pending

A note on time-symmetric hypersurfaces in the Schwarzschild geometry

Alfonso Garc\'ia-Parrado G\'omez-Lobo

arxiv:1008.3841 v2 · 2010-08-23 · gr-qc

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{K3WP7Q6Y7QUKINF2ZLZYRWT464}

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 2026-05-18T04:36:09.389861Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

56ecffc3d8fc28a434bacaf388da7cf70eafbb2ff437f1d55ee366571d4c13c3

Aliases

arxiv: 1008.3841 · arxiv_version: 1008.3841v2 · doi: 10.48550/arxiv.1008.3841 · pith_short_12: K3WP7Q6Y7QUK · pith_short_16: K3WP7Q6Y7QUKINF2 · pith_short_8: K3WP7Q6Y
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/K3WP7Q6Y7QUKINF2ZLZYRWT464 \
  | 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: 56ecffc3d8fc28a434bacaf388da7cf70eafbb2ff437f1d55ee366571d4c13c3
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "e66a115dfee3fdc064ac56de4ce1422919e1075e5c2a65107fa035ba6a940eb1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-08-23T15:56:31Z",
    "title_canon_sha256": "21483c1f479fd064f6918da93ef0dd907850fb1f0a0169a2ef693bc3440380b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.3841",
    "kind": "arxiv",
    "version": 2
  }
}