Pith Number

pith:KION7PPV

pith:2004:KION7PPVM5DJTLG3M7PXRCGPAI

not attested not anchored not stored refs pending

The Structure and Evolution of Early Cosmological HII Regions

H. Susa, M. Umemura, N. Yoshida, T. Kitayama

arxiv:astro-ph/0406280 v1 · 2004-06-11 · 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{KION7PPVM5DJTLG3M7PXRCGPAI}

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.

Cited by

2 papers in Pith

Ultraviolet diversity of Little Red Dots as a probe for direct-collapse black hole ages

Introducing the Lumina project: large-volume radiation-hydrodynamic simulations of the epochs of hydrogen and helium reionization

Receipt and verification

First computed	2026-07-04T16:43:59.423118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

521cdfbdf5674699acdb67df7888cf0227b18cd1b131dfb118164c8dcccee143

Aliases

arxiv: astro-ph/0406280 · arxiv_version: astro-ph/0406280v1 · doi: 10.48550/arxiv.astro-ph/0406280 · pith_short_12: KION7PPVM5DJ · pith_short_16: KION7PPVM5DJTLG3 · pith_short_8: KION7PPV

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/KION7PPVM5DJTLG3M7PXRCGPAI \
  | 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: 521cdfbdf5674699acdb67df7888cf0227b18cd1b131dfb118164c8dcccee143

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "609ade02d9e8c625a8ab638695bf1e3282276c114b9708d7ca740ea50d805ccf",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-06-11T11:42:15Z",
    "title_canon_sha256": "d85faa6f94b9030322d14e701b3c8b174037be1d2e6aaff852ff453a03964fc7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0406280",
    "kind": "arxiv",
    "version": 1
  }
}