Pith Number

pith:JFV74CD6

pith:2025:JFV74CD6ST3IMDUK3KDCATD4FC

not attested not anchored not stored refs pending

A Differentiable, End-to-End Forward Model for 21 cm Cosmology: Estimating the Foreground, Instrument, and Signal Joint Posterior

Nicholas Kern

arxiv:2504.07090 v2 · 2025-04-09 · astro-ph.CO · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JFV74CD6ST3IMDUK3KDCATD4FC}

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

Machine Learning and the SKA for Cosmic Dawn and the Epoch of Reionization

Receipt and verification

First computed	2026-07-05T11:36:30.548771Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

496bfe087e94f6860e8ada86204c7c289f33bdf4aa39cff180097ef3d09cbc6c

Aliases

arxiv: 2504.07090 · arxiv_version: 2504.07090v2 · doi: 10.48550/arxiv.2504.07090 · pith_short_12: JFV74CD6ST3I · pith_short_16: JFV74CD6ST3IMDUK · pith_short_8: JFV74CD6

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/JFV74CD6ST3IMDUK3KDCATD4FC \
  | 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: 496bfe087e94f6860e8ada86204c7c289f33bdf4aa39cff180097ef3d09cbc6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aedaa1644db6321a9f1f71b1100801e35ff3ee1a7f8be51cd0116830fe601015",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2025-04-09T17:59:03Z",
    "title_canon_sha256": "dffc263135aaaed95f02f5e88779cb5521a16a8cd7b7d47444fd2d0d7307bb44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.07090",
    "kind": "arxiv",
    "version": 2
  }
}