pith. sign in
Pith Number

pith:PRAKGH4Q

pith:2013:PRAKGH4QXMTSNLIW7BFGU6QOH7
not attested not anchored not stored refs pending

Can non-local or higher derivative theories provide alternatives to inflation?

Ghazal Geshnizjani, Nahid Ahmadi

arxiv:1309.4782 v2 · 2013-09-18 · hep-th · astro-ph.CO · gr-qc · hep-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{PRAKGH4QXMTSNLIW7BFGU6QOH7}

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 2026-05-18T03:05:18.077505Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

7c40a31f90bb2726ad16f84a6a7a0e3ff0020a92d662ebbee1029bbe35acc294

Aliases

arxiv: 1309.4782 · arxiv_version: 1309.4782v2 · doi: 10.48550/arxiv.1309.4782 · pith_short_12: PRAKGH4QXMTS · pith_short_16: PRAKGH4QXMTSNLIW · pith_short_8: PRAKGH4Q
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/PRAKGH4QXMTSNLIW7BFGU6QOH7 \
  | 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: 7c40a31f90bb2726ad16f84a6a7a0e3ff0020a92d662ebbee1029bbe35acc294
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "866cc90e6a0e5b7fa295a570cc1996194495aca48faa70009bd1d5d5357f3639",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "gr-qc",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2013-09-18T20:02:01Z",
    "title_canon_sha256": "391cf85371055de295aba7364eb76320ce84ec0db9363d46a60a6401a20c1bdc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.4782",
    "kind": "arxiv",
    "version": 2
  }
}