Pith Number

pith:CCKP4EAH

pith:2008:CCKP4EAHBGNJNBHILNE6XGE2XU

not attested not anchored not stored refs pending

Detection and extraction of signals from the epoch of reionization using higher order one-point statistics

(2) Stockholm Observatory, (3) Institute for Theoretical Physics, 4), (4) ASTRON, (5) MPA, (6) Leiden Observatory), A. G. de Bruyn (1, Andreas H. Pawlik (6), Benedetta Ciardi (5), Garching, Garrelt Mellema (2), Geraint J. A. Harker (1), Gianni Bernardi (1), Ilian T. Iliev (3), Joop Schaye (6), Leon V. E. Koopmans (1), Michiel A. Brentjens (4), Panagiotis Labropoulos (1), Rajat M. Thomas (1), Saleem Zaroubi (1), Sarod Yatawatta (1) ((1) Kapteyn Institute, Vibor Jelic (1), V. N. Pandey (1), Zurich

arxiv:0809.2428 v2 · 2008-09-15 · 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{CCKP4EAHBGNJNBHILNE6XGE2XU}

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	2026-07-04T15:38:50.346824Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1094fe1007099a9684e85b49eb989abd24d2085c6b49e0c8647f8f0ba6f0755c

Aliases

arxiv: 0809.2428 · arxiv_version: 0809.2428v2 · doi: 10.48550/arxiv.0809.2428 · pith_short_12: CCKP4EAHBGNJ · pith_short_16: CCKP4EAHBGNJNBHI · pith_short_8: CCKP4EAH

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/CCKP4EAHBGNJNBHILNE6XGE2XU \
  | 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: 1094fe1007099a9684e85b49eb989abd24d2085c6b49e0c8647f8f0ba6f0755c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8987544faa015977909a26ad2bbf9e6aa62e9cef416ae20601600bc4bc4fc2a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-15T00:32:24Z",
    "title_canon_sha256": "cbc61cc83bce6912529f11e64e748c37d76a677b99af0783b274042267ed7555"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.2428",
    "kind": "arxiv",
    "version": 2
  }
}