Pith Number

pith:UG7CV2QR

pith:2014:UG7CV2QRSSMYSZO5AM4YF6UUAA

not attested not anchored not stored refs pending

Jump in fluid properties of inflationary universe to reconcile scalar and tensor spectra

Hassan Firouzjahi, Mohammad Hossein Namjoo

arxiv:1404.2589 v1 · 2014-04-09 · 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{UG7CV2QRSSMYSZO5AM4YF6UUAA}

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	2026-05-18T02:41:24.720772Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1be2aea1194998965dd033982fa9400219a52e5ab43b24c0e8c49e400a9878a

Aliases

arxiv: 1404.2589 · arxiv_version: 1404.2589v1 · doi: 10.48550/arxiv.1404.2589 · pith_short_12: UG7CV2QRSSMY · pith_short_16: UG7CV2QRSSMYSZO5 · pith_short_8: UG7CV2QR

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/UG7CV2QRSSMYSZO5AM4YF6UUAA \
  | 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: a1be2aea1194998965dd033982fa9400219a52e5ab43b24c0e8c49e400a9878a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5869dc62fedd7fc4b732a14008ab9b7fa50df751b8d4e2fadcc9eaaa76dd4ff5",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2014-04-09T19:44:35Z",
    "title_canon_sha256": "2191215dafea30522b6df7666ce7c133d70363715b614fe0e34356eb432011f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.2589",
    "kind": "arxiv",
    "version": 1
  }
}