Pith Number

pith:I7HNLZAD

pith:2003:I7HNLZADBS5OQTO6X5QOAXTV43

not attested not anchored not stored refs pending

Testing dark energy beyond the cosmological constant barrier

J. S. Alcaniz (Univ. Fed. do Rio Grande do Norte)

arxiv:astro-ph/0312424 v2 · 2003-12-16 · astro-ph · 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{I7HNLZADBS5OQTO6X5QOAXTV43}

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	2026-07-04T16:38:00.826827Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47ced5e4030cbae84ddebf60e05e75e6c935fd2ec7366f8eed6c3b3f3214fd23

Aliases

arxiv: astro-ph/0312424 · arxiv_version: astro-ph/0312424v2 · doi: 10.48550/arxiv.astro-ph/0312424 · pith_short_12: I7HNLZADBS5O · pith_short_16: I7HNLZADBS5OQTO6 · pith_short_8: I7HNLZAD

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/I7HNLZADBS5OQTO6X5QOAXTV43 \
  | 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: 47ced5e4030cbae84ddebf60e05e75e6c935fd2ec7366f8eed6c3b3f3214fd23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "01cdf582cc189939714671f74c018c66b9bf5f3698cefe85d2b6e45a6f1379bd",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-12-16T17:56:07Z",
    "title_canon_sha256": "1f0e1abd4f42867b550a099ba25c3822f8f95836f2876ee73d3d196ff6a62f7b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0312424",
    "kind": "arxiv",
    "version": 2
  }
}