Pith Number

pith:TJX6KTF6

pith:2003:TJX6KTF6ITEUJOAPLF5WIT7AL6

not attested not anchored not stored refs pending

Reconstructing the dark energy equation of state with varying alpha

James E. Lidsey (Queen Mary), N. J. Nunes

arxiv:astro-ph/0310882 v2 · 2003-10-30 · astro-ph · hep-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TJX6KTF6ITEUJOAPLF5WIT7AL6}

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	2026-07-04T16:37:39.045114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a6fe54cbe44c944b80f597b644fe05fb672d660198f44df0c43f502784b0a97

Aliases

arxiv: astro-ph/0310882 · arxiv_version: astro-ph/0310882v2 · doi: 10.48550/arxiv.astro-ph/0310882 · pith_short_12: TJX6KTF6ITEU · pith_short_16: TJX6KTF6ITEUJOAP · pith_short_8: TJX6KTF6

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/TJX6KTF6ITEUJOAPLF5WIT7AL6 \
  | 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: 9a6fe54cbe44c944b80f597b644fe05fb672d660198f44df0c43f502784b0a97

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb34b114910e175c9476ab5220c02b39b9b2a1dffe2a29c78a9d56e0a1c6aa3e",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-10-30T18:23:08Z",
    "title_canon_sha256": "bc7369f54447cc8fd881f0cabfbba925f19d584acd2ada081938e2c44825698b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0310882",
    "kind": "arxiv",
    "version": 2
  }
}