Pith Number

pith:M7X2EBF4

pith:2009:M7X2EBF42E2DZJAKVUXLAH4AS6

not attested not anchored not stored refs pending

On the $r-$stability of spacelike hypersurfaces

A. Caminha, F. Camargo, H. de Lima, M. Silva

arxiv:0911.2043 v1 · 2009-11-11 · 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{M7X2EBF42E2DZJAKVUXLAH4AS6}

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	2026-05-18T02:10:48.886887Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67efa204bcd1343ca40aad2eb01f80979c19c15864018d0c2dd8f5139093b44d

Aliases

arxiv: 0911.2043 · arxiv_version: 0911.2043v1 · doi: 10.48550/arxiv.0911.2043 · pith_short_12: M7X2EBF42E2D · pith_short_16: M7X2EBF42E2DZJAK · pith_short_8: M7X2EBF4

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/M7X2EBF42E2DZJAKVUXLAH4AS6 \
  | 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: 67efa204bcd1343ca40aad2eb01f80979c19c15864018d0c2dd8f5139093b44d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db26f52dfc0fd23b64b65e71ca56ecd9860670f332e403ed379a1d689b2b59c8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2009-11-11T03:36:16Z",
    "title_canon_sha256": "06dea3d611ce3b13385a9d783d753304f02d27b597307c729c86af87c0eb496e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.2043",
    "kind": "arxiv",
    "version": 1
  }
}