Pith Number

pith:3UEU3IRJ

pith:2003:3UEU3IRJPE7HBKMSVOYJEAVYRM

not attested not anchored not stored refs pending

Tracking and coupled dark energy as seen by WMAP

Luca Amendola & Claudia Quercellini (INAF-Osservatorio Astronomico di Roma, Universita' di Roma Tor Vergata)

arxiv:astro-ph/0303228 v2 · 2003-03-11 · astro-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{3UEU3IRJPE7HBKMSVOYJEAVYRM}

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	2026-05-18T04:23:00.973929Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd094da229793e70a992abb09202b88b2268e7fd62ebc4a9e49f4a18d89c24f4

Aliases

arxiv: astro-ph/0303228 · arxiv_version: astro-ph/0303228v2 · doi: 10.48550/arxiv.astro-ph/0303228 · pith_short_12: 3UEU3IRJPE7H · pith_short_16: 3UEU3IRJPE7HBKMS · pith_short_8: 3UEU3IRJ

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/3UEU3IRJPE7HBKMSVOYJEAVYRM \
  | 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: dd094da229793e70a992abb09202b88b2268e7fd62ebc4a9e49f4a18d89c24f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fbb06f07dcfc8293e4eb851b17b145a7be2930998df974081ed0ad1302005f1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-03-11T18:30:30Z",
    "title_canon_sha256": "887557ebf9095b8e99c319e11faeb30f3c157f5a3a29154e7e0a59be38a77937"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0303228",
    "kind": "arxiv",
    "version": 2
  }
}