Pith Number

pith:4G2MKAQW

pith:2004:4G2MKAQWSE7EMMSUUZDRZAINTH

not attested not anchored not stored refs pending

The Alcock-Paczynski test in redshifted twenty one centimeter maps

Adi Nusser

arxiv:astro-ph/0410420 v2 · 2004-10-18 · 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{4G2MKAQWSE7EMMSUUZDRZAINTH}

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

An Alcock-Paczynski Test on Reionization Bubbles for Cosmology

Receipt and verification

First computed	2026-07-04T16:44:59.789540Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1b4c50216913e463254a6471c810d99e4602ce71a335e5e4cb208a50647a120

Aliases

arxiv: astro-ph/0410420 · arxiv_version: astro-ph/0410420v2 · doi: 10.48550/arxiv.astro-ph/0410420 · pith_short_12: 4G2MKAQWSE7E · pith_short_16: 4G2MKAQWSE7EMMSU · pith_short_8: 4G2MKAQW

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/4G2MKAQWSE7EMMSUUZDRZAINTH \
  | 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: e1b4c50216913e463254a6471c810d99e4602ce71a335e5e4cb208a50647a120

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf6100c90b2b55089fcdb12ff9950ccb2e4e487aed6465ebe3f57679ffd3e7b2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-10-18T22:26:36Z",
    "title_canon_sha256": "a742c2b1a2831799ecd293734cdb12a99a62cdcb6761cc5af0ca0c390a90ff61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0410420",
    "kind": "arxiv",
    "version": 2
  }
}