Pith Number

pith:RKRRULWL

pith:2026:RKRRULWLB3FWEI6P5PKDALSSQU

not attested not anchored not stored refs pending

Probing late-time deviations from $\Lambda$CDM with a quadratic dark energy expansion

Abra\~ao J. S. Capistrano, Rafael C. Nunes, Sehjal Khandelwal, Suresh Kumar

arxiv:2605.20748 v1 · 2026-05-20 · 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{RKRRULWLB3FWEI6P5PKDALSSQU}

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	2026-05-21T01:04:52.099122Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8aa31a2ecb0ecb6223cfebd4302e52853b0b67288fea0b55a9847cb6fb88c49a

Aliases

arxiv: 2605.20748 · arxiv_version: 2605.20748v1 · doi: 10.48550/arxiv.2605.20748 · pith_short_12: RKRRULWLB3FW · pith_short_16: RKRRULWLB3FWEI6P · pith_short_8: RKRRULWL

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/RKRRULWLB3FWEI6P5PKDALSSQU \
  | 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: 8aa31a2ecb0ecb6223cfebd4302e52853b0b67288fea0b55a9847cb6fb88c49a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c802e06d2c37eb44cf2b1f739b521d97484ec8d4bbc642f568195e2d8f7bb6b",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2026-05-20T05:49:49Z",
    "title_canon_sha256": "d69c8761ebe7408a8dc4751f9912210831bca0c8e88fc03eea748320ceaf6403"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.20748",
    "kind": "arxiv",
    "version": 1
  }
}