Pith Number

pith:WMFCTQXA

pith:2011:WMFCTQXATTMSGM5LNGB7UAEOEV

not attested not anchored not stored refs pending

Radiative transfer in a clumpy universe: IV. New synthesis models of the cosmic UV/X-ray background

Francesco Haardt, Piero Madau

arxiv:1105.2039 v3 · 2011-05-10 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WMFCTQXATTMSGM5LNGB7UAEOEV}

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

A Measurement of the Thermal and Ionization State of the IGM at $z < 0.5$

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

Receipt and verification

First computed	2026-05-18T02:02:01.689855Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b30a29c2e09cd92333ab6983fa008e25736f532b295eba72851cede79f0b52a4

Aliases

arxiv: 1105.2039 · arxiv_version: 1105.2039v3 · doi: 10.48550/arxiv.1105.2039 · pith_short_12: WMFCTQXATTMS · pith_short_16: WMFCTQXATTMSGM5L · pith_short_8: WMFCTQXA

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/WMFCTQXATTMSGM5LNGB7UAEOEV \
  | 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: b30a29c2e09cd92333ab6983fa008e25736f532b295eba72851cede79f0b52a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d85107de4d4eb21256557983dad0f94a0b5f9f67afdad7e517b52f99f27eb88f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-05-10T20:02:45Z",
    "title_canon_sha256": "5e21831f0dd0589cd10c7b2f417670ccc9a04298fdd3180579deb2733bac4b9c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.2039",
    "kind": "arxiv",
    "version": 3
  }
}