Pith Number

pith:4PMW4RHA

pith:2003:4PMW4RHA26TFZTM3EFR5PKONZH

not attested not anchored not stored refs pending

Early Structure Formation and Reionization in a Warm Dark Matter Cosmology

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

arxiv:astro-ph/0303622 v2 · 2003-03-28 · 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{4PMW4RHA26TFZTM3EFR5PKONZH}

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	2026-05-18T04:17:53.747169Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3d96e44e0d7a65ccd9b2163d7a9cdc9dd69652d3025fa56248638bb6ba4d66d

Aliases

arxiv: astro-ph/0303622 · arxiv_version: astro-ph/0303622v2 · doi: 10.48550/arxiv.astro-ph/0303622 · pith_short_12: 4PMW4RHA26TF · pith_short_16: 4PMW4RHA26TFZTM3 · pith_short_8: 4PMW4RHA

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/4PMW4RHA26TFZTM3EFR5PKONZH \
  | 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: e3d96e44e0d7a65ccd9b2163d7a9cdc9dd69652d3025fa56248638bb6ba4d66d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc610be840d7c4d401b923bfcbb4933e75da0c6f04283890b6547ad7af670782",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-03-28T20:32:37Z",
    "title_canon_sha256": "443f1c0b3010915e5275901a3d491496b0ec57c975c1961dbae3c70ec97a176f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0303622",
    "kind": "arxiv",
    "version": 2
  }
}