Pith Number

pith:KMI7OXDX

pith:2008:KMI7OXDXR4GD2636BBD2MQVYD7

not attested not anchored not stored refs pending

Hyperbolicity of scalar-tensor theories of gravity

Dario N\'u\~nez, David Martinez-del Rio, Marcelo Salgado, Miguel Alcubierre

arxiv:0801.2372 v2 · 2008-01-15 · gr-qc · astro-ph · hep-th · 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{KMI7OXDXR4GD2636BBD2MQVYD7}

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.

Cited by

2 papers in Pith

Testing General Relativity with Present and Future Astrophysical Observations

The Science of the Einstein Telescope

Receipt and verification

First computed	2026-07-04T15:30:53.940115Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5311f75c778f0c3d7b7e0847a642b81fed25fe4e81e81cbb08ba73ea387602f8

Aliases

arxiv: 0801.2372 · arxiv_version: 0801.2372v2 · doi: 10.48550/arxiv.0801.2372 · pith_short_12: KMI7OXDXR4GD · pith_short_16: KMI7OXDXR4GD2636 · pith_short_8: KMI7OXDX

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/KMI7OXDXR4GD2636BBD2MQVYD7 \
  | 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: 5311f75c778f0c3d7b7e0847a642b81fed25fe4e81e81cbb08ba73ea387602f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b681884029f2b114d7038386ef40c9e43c15324c78e45539782d101f7da72ecd",
    "cross_cats_sorted": [
      "astro-ph",
      "hep-th",
      "math-ph",
      "math.MP"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2008-01-15T20:41:21Z",
    "title_canon_sha256": "4a63bf3f5880822d294608bf81c49c73afe5472b1d70e72c8b684a2e91b660cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.2372",
    "kind": "arxiv",
    "version": 2
  }
}