Pith Number

pith:ZR4ZBD3B

pith:2019:ZR4ZBD3BXZEMKZYLI4GVDDHMLL

not attested not anchored not stored refs pending

Massive Star Formation via the Collapse of Subvirial and Virialized Turbulent Massive Cores

Anna L. Rosen, Blakesley Burkhart, Pak Shing Li, Qizhou Zhang

arxiv:1902.10153 v2 · 2019-02-26 · astro-ph.SR · 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{ZR4ZBD3BXZEMKZYLI4GVDDHMLL}

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	2026-07-05T00:30:02.087561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc79908f61be48c5670b470d518cec5ad956892f9c13fa0130595fe9f7a79bcf

Aliases

arxiv: 1902.10153 · arxiv_version: 1902.10153v2 · doi: 10.48550/arxiv.1902.10153 · pith_short_12: ZR4ZBD3BXZEM · pith_short_16: ZR4ZBD3BXZEMKZYL · pith_short_8: ZR4ZBD3B

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/ZR4ZBD3BXZEMKZYLI4GVDDHMLL \
  | 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: cc79908f61be48c5670b470d518cec5ad956892f9c13fa0130595fe9f7a79bcf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c51db29c4cbe654971b52b9bcee7680fef0dfbb2ea73faed86ad704ac533265",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-02-26T19:00:05Z",
    "title_canon_sha256": "fd1d1680719bc8a4f3bbfe8ef967c04804ac79f1a7a77622e7b465908bb890cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.10153",
    "kind": "arxiv",
    "version": 2
  }
}