Pith Number

pith:N2LRK6QG

pith:2009:N2LRK6QGPKTOCLAQKRY3QUZT3F

not attested not anchored not stored refs pending

Three-form cosmology

Nelson J. Nunes, Tomi S. Koivisto

arxiv:0907.3883 v2 · 2009-07-22 · 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{N2LRK6QGPKTOCLAQKRY3QUZT3F}

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

1 paper in Pith

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

Receipt and verification

First computed	2026-05-18T02:12:54.625442Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e97157a067aa6e12c105471b85333d95984b77b69e4851147272f7e9b5ff529

Aliases

arxiv: 0907.3883 · arxiv_version: 0907.3883v2 · doi: 10.48550/arxiv.0907.3883 · pith_short_12: N2LRK6QGPKTO · pith_short_16: N2LRK6QGPKTOCLAQ · pith_short_8: N2LRK6QG

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/N2LRK6QGPKTOCLAQKRY3QUZT3F \
  | 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: 6e97157a067aa6e12c105471b85333d95984b77b69e4851147272f7e9b5ff529

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f681350642b35700a8824c6ce626b4b0e92daccb63ded36a2bae04d61699e14",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-07-22T16:59:00Z",
    "title_canon_sha256": "ab474caab5444c0c5e7e9944ad92f8cb3271d90c03bd3383e626cd9ea5dff891"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.3883",
    "kind": "arxiv",
    "version": 2
  }
}