Pith Number

pith:W4DID5UP

pith:2003:W4DID5UPFGHLKLUS3ONCXM43LP

not attested not anchored not stored refs pending

Early Structure Formation and Reionization in a Cosmological Model with a Running Primordial Power Spectrum

Aaron Sokasian (CfA), Lars Hernquist (CfA), NAOJ), Naoki Yoshida (CfA, Volker Springel (MPA)

arxiv:astro-ph/0305517 v2 · 2003-05-27 · 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{W4DID5UPFGHLKLUS3ONCXM43LP}

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	2026-07-04T16:37:12.618117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b70681f68f298eb52e92db9a2bb39b5bd33dbd33cf0ad0487053edbb0a074a94

Aliases

arxiv: astro-ph/0305517 · arxiv_version: astro-ph/0305517v2 · doi: 10.48550/arxiv.astro-ph/0305517 · pith_short_12: W4DID5UPFGHL · pith_short_16: W4DID5UPFGHLKLUS · pith_short_8: W4DID5UP

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/W4DID5UPFGHLKLUS3ONCXM43LP \
  | 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: b70681f68f298eb52e92db9a2bb39b5bd33dbd33cf0ad0487053edbb0a074a94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b10312f9b230d050e4f82a05fc6eb3822b9836ac8fe4f713cd1dfa4f8fe285f4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-05-27T23:20:29Z",
    "title_canon_sha256": "39e9ad79720585cac583837c06e596b042b89a2d4b43ab40852c3d2863b6e909"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0305517",
    "kind": "arxiv",
    "version": 2
  }
}