Pith Number

pith:WIWTC2AL

pith:2008:WIWTC2ALE7MBHJQDZMCKCMFRBX

not attested not anchored not stored refs pending

Imprint of Inhomogeneous Hydrogen Reionization on the Temperature Distribution of the Intergalactic Medium

Abraham Loeb (CfA), Hy Trac (CfA), Renyue Cen (Princeton)

arxiv:0807.4530 v2 · 2008-07-29 · 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{WIWTC2ALE7MBHJQDZMCKCMFRBX}

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

4 papers in Pith

Inferring Cosmology and Astrophysics from the High-redshift 21cm Signal with SKA-Low

Overview of 21cm Experiments at high redshift with SKAO

The Lumina Project: Intergalactic Clumping and Recombination Sinks

Overview of 21cm Experiments at high redshift with SKAO

Receipt and verification

First computed	2026-07-04T17:12:01.519400Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b22d31680b27d813a603cb04a130b10decd7a333cdde00ed43bee61d9ce70c85

Aliases

arxiv: 0807.4530 · arxiv_version: 0807.4530v2 · doi: 10.48550/arxiv.0807.4530 · pith_short_12: WIWTC2ALE7MB · pith_short_16: WIWTC2ALE7MBHJQD · pith_short_8: WIWTC2AL

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/WIWTC2ALE7MBHJQDZMCKCMFRBX \
  | 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: b22d31680b27d813a603cb04a130b10decd7a333cdde00ed43bee61d9ce70c85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b272f04bf77f74072ef7775eeb0c7703f0069f8f08ac63e5199c332f6a75523d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-07-29T17:58:12Z",
    "title_canon_sha256": "e95e0ed71ac44b8b280a0f1e5794762c8df4a8e27a20e1b0e9fdb95420f32591"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.4530",
    "kind": "arxiv",
    "version": 2
  }
}