Pith Number

pith:XZFGAUXI

pith:2004:XZFGAUXIBXVWMIV3BVOELOVABF

not attested not anchored not stored refs pending

A Method for Separating the Physics from the Astrophysics of High-Redshift 21cm Fluctuations

Abraham Loeb (Harvard U.), Rennan Barkana (Tel Aviv U.)

arxiv:astro-ph/0409572 v3 · 2004-09-23 · 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{XZFGAUXIBXVWMIV3BVOELOVABF}

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 Designer's Guide to Lunar Far-Side Interferometer Array: Power Spectrum Measurement and Cosmological Constraints from the Dark Ages

Primordial Magnetic Fields at Cosmic Dawn: 21-cm Forecasts with HERA and SKA

Receipt and verification

First computed	2026-07-04T16:44:44.910300Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be4a6052e80deb6622bb0d5c45baa00958610c91851fbeb0cb0f3aa4a2fcffab

Aliases

arxiv: astro-ph/0409572 · arxiv_version: astro-ph/0409572v3 · doi: 10.48550/arxiv.astro-ph/0409572 · pith_short_12: XZFGAUXIBXVW · pith_short_16: XZFGAUXIBXVWMIV3 · pith_short_8: XZFGAUXI

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/XZFGAUXIBXVWMIV3BVOELOVABF \
  | 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: be4a6052e80deb6622bb0d5c45baa00958610c91851fbeb0cb0f3aa4a2fcffab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05cf2887f43edfdbb36a948c0ee6760dcf33295907cb4772ee86ad99a91f80ed",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-09-23T20:19:32Z",
    "title_canon_sha256": "acd22f5e17e855f75fc84260c41f0a13047d7b5936a42270640680724ce70dc3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0409572",
    "kind": "arxiv",
    "version": 3
  }
}