Pith Number

pith:EEUCNIGL

pith:2005:EEUCNIGLFD7L22QSPOJKFLJEEG

not attested not anchored not stored refs pending

The Amplitude of Dark Energy Perturbations

Christopher Gordon (Chicago), David Wands (Portsmouth)

arxiv:astro-ph/0504132 v2 · 2005-04-06 · astro-ph · hep-ph · 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{EEUCNIGLFD7L22QSPOJKFLJEEG}

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	2026-05-18T04:22:20.764365Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

212826a0cb28febd6a127b92a2ad2421845a458117ea2fcdfa2f63e8fb992208

Aliases

arxiv: astro-ph/0504132 · arxiv_version: astro-ph/0504132v2 · doi: 10.48550/arxiv.astro-ph/0504132 · pith_short_12: EEUCNIGLFD7L · pith_short_16: EEUCNIGLFD7L22QS · pith_short_8: EEUCNIGL

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/EEUCNIGLFD7L22QSPOJKFLJEEG \
  | 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: 212826a0cb28febd6a127b92a2ad2421845a458117ea2fcdfa2f63e8fb992208

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "681530b265e630da9f1e3d4efebc224fa7708b545a70903d80de6838d48cff04",
    "cross_cats_sorted": [
      "hep-ph",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-04-06T00:11:31Z",
    "title_canon_sha256": "4a32c4e821161c18b051388e0de2121d76d523ae208c3fef4463facdbaba90e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0504132",
    "kind": "arxiv",
    "version": 2
  }
}