Pith Number

pith:JPWHC6XR

pith:2012:JPWHC6XRGFA7RQDGJZE7LG5BSG

not attested not anchored not stored refs pending

A solution to the radiation pressure problem in the formation of massive stars

Henrik Beuther, Hubert Klahr, Rolf Kuiper, Thomas Henning

arxiv:1211.7064 v1 · 2012-11-29 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JPWHC6XRGFA7RQDGJZE7LG5BSG}

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	2026-05-18T03:39:41.116427Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4bec717af13141f8c0664e49f59ba19186eefcca956153ca4e9923a24a72f2ba

Aliases

arxiv: 1211.7064 · arxiv_version: 1211.7064v1 · doi: 10.48550/arxiv.1211.7064 · pith_short_12: JPWHC6XRGFA7 · pith_short_16: JPWHC6XRGFA7RQDG · pith_short_8: JPWHC6XR

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/JPWHC6XRGFA7RQDGJZE7LG5BSG \
  | 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: 4bec717af13141f8c0664e49f59ba19186eefcca956153ca4e9923a24a72f2ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56578a159feeb0477bfb5b19ce73e6cb28d7bf9df31c23cc36a0ff912276d953",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-11-29T21:00:02Z",
    "title_canon_sha256": "630969e7bc6a6daae15072349fddd82b90b19116dfb36103ff9a744e98eae6d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.7064",
    "kind": "arxiv",
    "version": 1
  }
}