Pith Number

pith:CUL7Y4GB

pith:2012:CUL7Y4GB44ZUZKXEOBHTP6BVGV

not attested not anchored not stored refs pending

Herschel observations of B1-bS and B1-bN: two first hydrostatic core candidates in the Perseus star-forming cloud

A. Facchini, A. M. Di Giorgio, D. Elia, D. Polychroni, D. Ward-Thompson, E. Schisano, F. Motte, F. Strafella, G. J. White, J. Di Francesco, J. P. Bernard, K. L. J. Rygl, L. Spinoglio, L. Testi, M. Benedettini, M. Hennemann, M. Pestalozzi, N. Peretto, N. Schneider, P. Andr\'e, P. Saraceno, Q. Nguyen-Luong, S. Molinari, S. Sadavoy, Stefano Pezzuto, T. Hill, V. K\"onyves

arxiv:1209.5290 v1 · 2012-09-24 · 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{CUL7Y4GB44ZUZKXEOBHTP6BVGV}

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	2026-05-18T01:54:19.513483Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1517fc70c1e7334caae4704f37f8353572beac1037d67f75070075e057152e83

Aliases

arxiv: 1209.5290 · arxiv_version: 1209.5290v1 · doi: 10.48550/arxiv.1209.5290 · pith_short_12: CUL7Y4GB44ZU · pith_short_16: CUL7Y4GB44ZUZKXE · pith_short_8: CUL7Y4GB

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/CUL7Y4GB44ZUZKXEOBHTP6BVGV \
  | 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: 1517fc70c1e7334caae4704f37f8353572beac1037d67f75070075e057152e83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8550c15b9e28c003813ac4ea3a8d078f636f1cc560314985b1bd4cae622b0ec7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-09-24T14:58:11Z",
    "title_canon_sha256": "2c3e277d737c8711c198b3dc9a0880b1e33c0379d4a69fb34f0902b9f2efeee6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.5290",
    "kind": "arxiv",
    "version": 1
  }
}