Pith Number

pith:QJIJ47TZ

pith:2009:QJIJ47TZXS6INQGWHWTBFEQ3CE

not attested not anchored not stored refs pending

Inflation and dark energy from three-forms

Nelson J. Nunes, Tomi S. Koivisto

arxiv:0908.0920 v2 · 2009-08-06 · astro-ph.CO · gr-qc · 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{QJIJ47TZXS6INQGWHWTBFEQ3CE}

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

2 papers in Pith

Sign-Switching Dark Energy: Smooth Transitions with Recent DESI DR2 Observations

Modified Gravity Theories on a Nutshell: Inflation, Bounce and Late-time Evolution

Receipt and verification

First computed	2026-05-18T04:35:46.202808Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82509e7e79bcbc86c0d63da612921b1101b6d6037956d4418543b905c5d55323

Aliases

arxiv: 0908.0920 · arxiv_version: 0908.0920v2 · doi: 10.48550/arxiv.0908.0920 · pith_short_12: QJIJ47TZXS6I · pith_short_16: QJIJ47TZXS6INQGW · pith_short_8: QJIJ47TZ

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/QJIJ47TZXS6INQGWHWTBFEQ3CE \
  | 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: 82509e7e79bcbc86c0d63da612921b1101b6d6037956d4418543b905c5d55323

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1566ebde425fced5c8c8950d5af7da30a6e091aa5839a1642d8553113eef0634",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-08-06T17:40:24Z",
    "title_canon_sha256": "6b307da5e947a748aae7902a8111b76e617174627a0b4a406c7ab4330d798203"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.0920",
    "kind": "arxiv",
    "version": 2
  }
}