Pith Number

pith:FEF7FG2G

pith:2004:FEF7FG2GDIRGDBBS5MJQUXRONX

not attested not anchored not stored refs pending

Fitting Type Ia supernovae with coupled dark energy

Federico Piazza, Luca Amendola, Maurizio Gasperini

arxiv:astro-ph/0407573 v3 · 2004-07-28 · 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{FEF7FG2GDIRGDBBS5MJQUXRONX}

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	2026-07-04T16:44:23.740094Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

290bf29b461a22618432eb130a5e2e6dcd530c0c2faf7d732a2cbd6acdf38549

Aliases

arxiv: astro-ph/0407573 · arxiv_version: astro-ph/0407573v3 · doi: 10.48550/arxiv.astro-ph/0407573 · pith_short_12: FEF7FG2GDIRG · pith_short_16: FEF7FG2GDIRGDBBS · pith_short_8: FEF7FG2G

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/FEF7FG2GDIRGDBBS5MJQUXRONX \
  | 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: 290bf29b461a22618432eb130a5e2e6dcd530c0c2faf7d732a2cbd6acdf38549

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd22e4222c1aebcbb06469eb09212a31a4d1d9a408cfe9d40101a442f45a8438",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-07-28T12:17:23Z",
    "title_canon_sha256": "ad19ea0e36152e43a6b51a2a216f053a1f9bdd2bab89aa037323e9a4736f742e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0407573",
    "kind": "arxiv",
    "version": 3
  }
}