Pith Number

pith:SQQTW5U2

pith:2013:SQQTW5U2OFLMWLUMNRIENI4EPN

not attested not anchored not stored refs pending

PPN expansion and FRW scalar perturbations in n-DBI gravity

Carlos Herdeiro, Fl\'avio S. Coelho, Shinji Hirano, Yuki Sato

arxiv:1307.4598 v3 · 2013-07-17 · gr-qc · astro-ph.CO · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SQQTW5U2OFLMWLUMNRIENI4EPN}

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

1 paper in Pith

Testing General Relativity with Present and Future Astrophysical Observations

Receipt and verification

First computed	2026-05-18T02:41:42.307044Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94213b769a7156cb2e8c6c5046a3847b5ac2e071f9d45ea4e9ef9710a9527036

Aliases

arxiv: 1307.4598 · arxiv_version: 1307.4598v3 · doi: 10.48550/arxiv.1307.4598 · pith_short_12: SQQTW5U2OFLM · pith_short_16: SQQTW5U2OFLMWLUM · pith_short_8: SQQTW5U2

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/SQQTW5U2OFLMWLUMNRIENI4EPN \
  | 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: 94213b769a7156cb2e8c6c5046a3847b5ac2e071f9d45ea4e9ef9710a9527036

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "803e87c58dd6ee5bd2af1f232b87ec9aafaded50a82ed281e5cdf86eda28310f",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-07-17T12:37:22Z",
    "title_canon_sha256": "b2e258414e76adb4c0463fd3a482f17bc6527905a8c5875c2f37af740cafba90"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.4598",
    "kind": "arxiv",
    "version": 3
  }
}