Pith Number

pith:HGIF4BXR

pith:2003:HGIF4BXR7N3NZINX2OX5L3HLJP

not attested not anchored not stored refs pending

Radiation Hydrodynamical Evolution of Primordial H II Regions

Daniel Whalen, Michael L. Norman, Tom Abel

arxiv:astro-ph/0310283 v2 · 2003-10-10 · 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{HGIF4BXR7N3NZINX2OX5L3HLJP}

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

1 paper in Pith

Little Red reionization factories

Receipt and verification

First computed	2026-07-04T16:37:31.263587Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39905e06f1fb76dca1b7d3afd5eceb4bd0147c814150a0a05743850d11430b08

Aliases

arxiv: astro-ph/0310283 · arxiv_version: astro-ph/0310283v2 · doi: 10.48550/arxiv.astro-ph/0310283 · pith_short_12: HGIF4BXR7N3N · pith_short_16: HGIF4BXR7N3NZINX · pith_short_8: HGIF4BXR

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/HGIF4BXR7N3NZINX2OX5L3HLJP \
  | 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: 39905e06f1fb76dca1b7d3afd5eceb4bd0147c814150a0a05743850d11430b08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cab3cb7e9faa6bbe8545a4de0aec65897763560f983ebd538ddea0977498a94a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-10-10T01:32:32Z",
    "title_canon_sha256": "b05c81dfd13b438aefda52f1b1311683ac5df8df41ca70323d453cbd9f5520f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0310283",
    "kind": "arxiv",
    "version": 2
  }
}