Pith Number

pith:UYCEVX6V

pith:2010:UYCEVX6VHLZWGLKSZGSYWQEHDZ

not attested not anchored not stored refs pending

Structure formation in $f(R)$ gravity: A distinguishing probe between the dark energy and modified gravity

Shant Baghram, Sohrab Rahvar

arxiv:1004.3360 v2 · 2010-04-20 · 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{UYCEVX6VHLZWGLKSZGSYWQEHDZ}

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	2026-05-18T04:30:48.560206Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6044adfd53af3632d52c9a58b40871e6cdf4f978920af55bc64fb946083a8ef

Aliases

arxiv: 1004.3360 · arxiv_version: 1004.3360v2 · doi: 10.48550/arxiv.1004.3360 · pith_short_12: UYCEVX6VHLZW · pith_short_16: UYCEVX6VHLZWGLKS · pith_short_8: UYCEVX6V

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/UYCEVX6VHLZWGLKSZGSYWQEHDZ \
  | 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: a6044adfd53af3632d52c9a58b40871e6cdf4f978920af55bc64fb946083a8ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f8c19997f9a5cefafb8e4e2cf96b71b6d8748e1543923374f8c1332afb9465f",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-04-20T07:01:38Z",
    "title_canon_sha256": "8b48caab3b15cb9b162abd1447367eecbf8ee6a284a3e7e7d68c878c80d59845"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.3360",
    "kind": "arxiv",
    "version": 2
  }
}