Pith Number

pith:7I55AR6V

pith:2011:7I55AR6V4F4KSBMYBTGVSPAHT4

not attested not anchored not stored refs pending

Spacelike hypersurfaces of constant higher order mean curvature in generalized Robertson-Walker spacetimes

Debora Impera, Luis J. Alias, Marco Rigoli

arxiv:1109.6477 v1 · 2011-09-29 · math.DG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7I55AR6V4F4KSBMYBTGVSPAHT4}

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	2026-05-18T02:00:21.613299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa3bd047d5e178a905980ccd593c079f3f08cc236f620d376c7f0aef8675e486

Aliases

arxiv: 1109.6477 · arxiv_version: 1109.6477v1 · doi: 10.48550/arxiv.1109.6477 · pith_short_12: 7I55AR6V4F4K · pith_short_16: 7I55AR6V4F4KSBMY · pith_short_8: 7I55AR6V

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/7I55AR6V4F4KSBMYBTGVSPAHT4 \
  | 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: fa3bd047d5e178a905980ccd593c079f3f08cc236f620d376c7f0aef8675e486

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80584914838cc1005d27eefc862e057b7ad93347221e73b8c986cced4d5cc612",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2011-09-29T11:14:15Z",
    "title_canon_sha256": "2ac8b61711474dd8309cf53fb9fffcc10272a719ea14b209d9e8a816eb2400c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.6477",
    "kind": "arxiv",
    "version": 1
  }
}