Pith Number

pith:ZT2AJI26

pith:2025:ZT2AJI26YRISDAYEOZPAYCO3AC

not attested not anchored not stored refs pending

Formation of first star clusters under the supersonic gas flow -- II. Critical halo mass and core mass function

Shingo Hirano

arxiv:2501.17491 v2 · 2025-01-29 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZT2AJI26YRISDAYEOZPAYCO3AC}

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	2026-07-05T11:00:25.895807Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccf404a35ec451218304765e0c09db009a217774b12c883065db36d88466a6ce

Aliases

arxiv: 2501.17491 · arxiv_version: 2501.17491v2 · doi: 10.48550/arxiv.2501.17491 · pith_short_12: ZT2AJI26YRIS · pith_short_16: ZT2AJI26YRISDAYE · pith_short_8: ZT2AJI26

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/ZT2AJI26YRISDAYEOZPAYCO3AC \
  | 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: ccf404a35ec451218304765e0c09db009a217774b12c883065db36d88466a6ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6648781830ccb7c9ae88aa9cafa9c39567e6ca908d67e0af91f1132fef973279",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-01-29T09:00:07Z",
    "title_canon_sha256": "60efb0432bdb1f178a5027a256b9ca8df2abf5a4eb07e328a5c6e90ed096e1ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.17491",
    "kind": "arxiv",
    "version": 2
  }
}