Pith Number

pith:7UK2XXLQ

pith:2009:7UK2XXLQQ2XQSNDM65UBZPHORB

not attested not anchored not stored refs pending

Evolutionary Signatures in the Formation of Low-Mass Protostars. II. Towards Reconciling Models and Observations

Chadwick H. Young, Cornelis P. Dullemond, Michael M. Dunham, Neal J. Evans II, Susan Terebey

arxiv:0912.5229 v1 · 2009-12-28 · 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{7UK2XXLQQ2XQSNDM65UBZPHORB}

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	2026-05-18T02:33:55.224167Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd15abdd7086af09346cf7681cbcee8862bb06c8d4b4c0ef11945e64a1e00000

Aliases

arxiv: 0912.5229 · arxiv_version: 0912.5229v1 · doi: 10.48550/arxiv.0912.5229 · pith_short_12: 7UK2XXLQQ2XQ · pith_short_16: 7UK2XXLQQ2XQSNDM · pith_short_8: 7UK2XXLQ

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/7UK2XXLQQ2XQSNDM65UBZPHORB \
  | 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: fd15abdd7086af09346cf7681cbcee8862bb06c8d4b4c0ef11945e64a1e00000

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff0ef26c42a033bafc7914d8b336bb45741bba5c51b07fcf3aa60eeb71d64090",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-12-28T23:59:33Z",
    "title_canon_sha256": "1fe786f54074a8422e61d5b83cac7bd2de4a7226fa55c64cd8fc7f6320c3e048"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.5229",
    "kind": "arxiv",
    "version": 1
  }
}