Pith Number

pith:M7KWAMOD

pith:2018:M7KWAMODR2SJ2JW52SRFUX36NV

not attested not anchored not stored refs pending

Modified gravity versus shear viscosity: imprints on the scalar matter perturbations

C. M. S. Barbosa, H. Velten, J. C. Fabris, Rudnei O. Ramos

arxiv:1807.03357 v2 · 2018-07-09 · astro-ph.CO · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M7KWAMODR2SJ2JW52SRFUX36NV}

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	2026-05-17T23:57:10.232051Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67d56031c38ea49d26ddd4a25a5f7e6d586874ad22be3da7e54bce59c5f63198

Aliases

arxiv: 1807.03357 · arxiv_version: 1807.03357v2 · doi: 10.48550/arxiv.1807.03357 · pith_short_12: M7KWAMODR2SJ · pith_short_16: M7KWAMODR2SJ2JW5 · pith_short_8: M7KWAMOD

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/M7KWAMODR2SJ2JW52SRFUX36NV \
  | 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: 67d56031c38ea49d26ddd4a25a5f7e6d586874ad22be3da7e54bce59c5f63198

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93fe6f239c946818ff8e93cf9795e9d5299dad95376a87f4956d9845547117df",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2018-07-09T19:42:42Z",
    "title_canon_sha256": "be7cc278439c5144ebadf852f618c1d71885a7dc7db30372ad9fafe242f76f80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.03357",
    "kind": "arxiv",
    "version": 2
  }
}