Pith Number

pith:7FBWZZVP

pith:2010:7FBWZZVPHQSCIGHYALWLB4AO5V

not attested not anchored not stored refs pending

The Einstein-Friedrich-nonlinear scalar field system and the stability of scalar field Cosmologies

Artur Alho, Filipe C. Mena, Juan A. Valiente Kroon

arxiv:1006.3778 v4 · 2010-06-18 · gr-qc · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7FBWZZVPHQSCIGHYALWLB4AO5V}

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	2026-05-18T00:32:55.870409Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9436ce6af3c242418f802ecb0f00eed4f4181af038b822e2dca7c40697c5a62

Aliases

arxiv: 1006.3778 · arxiv_version: 1006.3778v4 · doi: 10.48550/arxiv.1006.3778 · pith_short_12: 7FBWZZVPHQSC · pith_short_16: 7FBWZZVPHQSCIGHY · pith_short_8: 7FBWZZVP

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/7FBWZZVPHQSCIGHYALWLB4AO5V \
  | 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: f9436ce6af3c242418f802ecb0f00eed4f4181af038b822e2dca7c40697c5a62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fcd44b627a1412d84374b89ab072309d59ee4a47b27a837a43e11bde4e0a60fa",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-06-18T19:09:46Z",
    "title_canon_sha256": "635791be5dc4990811077ded2a89d652a63230a238d65c0dd85c1a20bf2967e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1006.3778",
    "kind": "arxiv",
    "version": 4
  }
}