Pith Number

pith:VG4PLC3K

pith:2025:VG4PLC3KRCXEEMA5OEZFSOANZ2

not attested not anchored not stored refs pending

The Signature of Sub-galactic Dark Matter Clumping in the Global 21-cm Signal of Hydrogen

Anastasia Fialkov, Hyunbae Park, Naoki Yoshida, Rajesh Mondal, Rennan Barkana, Sudipta Sikder

arxiv:2509.11055 v1 · 2025-09-14 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VG4PLC3KRCXEEMA5OEZFSOANZ2}

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	2026-07-05T12:11:32.777783Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9b8f58b6a88ae42301d713259380dceb59cf36ceae9b20836e0b6abe5436123

Aliases

arxiv: 2509.11055 · arxiv_version: 2509.11055v1 · doi: 10.48550/arxiv.2509.11055 · pith_short_12: VG4PLC3KRCXE · pith_short_16: VG4PLC3KRCXEEMA5 · pith_short_8: VG4PLC3K

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/VG4PLC3KRCXEEMA5OEZFSOANZ2 \
  | 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: a9b8f58b6a88ae42301d713259380dceb59cf36ceae9b20836e0b6abe5436123

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "576ae8cab19121978d50bfae21f6966c5ba03d7ae5993447d4b1ea5a368685a2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2025-09-14T02:47:41Z",
    "title_canon_sha256": "8b89fe95d45ece7270ccdddaf4a0612d856bf095cfeca1c7b07fcd1b417384a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.11055",
    "kind": "arxiv",
    "version": 1
  }
}