Pith Number

pith:3Y27VQ2J

pith:2009:3Y27VQ2JEWSRKVSDWNXSSY63GV

not attested not anchored not stored refs pending

Dissecting an intermediate-mass (IM) protostar: Chemical differentiation in IC1396N

A. Castro-Carrizo, A. Fuente, B. Lefloch, C. Ceccarelli, C. Codella, M.T. Beltran, P. Caselli, R. Neri, T. Alonso-Albi

arxiv:0909.2267 v1 · 2009-09-11 · 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{3Y27VQ2JEWSRKVSDWNXSSY63GV}

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	2026-05-18T02:11:48.719368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de35fac34925a5155643b36f2963db357917d278ef87b611a2e852c6042c740a

Aliases

arxiv: 0909.2267 · arxiv_version: 0909.2267v1 · doi: 10.48550/arxiv.0909.2267 · pith_short_12: 3Y27VQ2JEWSR · pith_short_16: 3Y27VQ2JEWSRKVSD · pith_short_8: 3Y27VQ2J

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/3Y27VQ2JEWSRKVSDWNXSSY63GV \
  | 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: de35fac34925a5155643b36f2963db357917d278ef87b611a2e852c6042c740a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3fb1226e932cdcfd13ce5c2f0aa2459762c5ec9a9da4eaf3e9a7ac52e056e602",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-09-11T20:34:02Z",
    "title_canon_sha256": "93bff2ee2ac365568427e4ea468ce64b79579f5510325dbe20da9828b61f570b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.2267",
    "kind": "arxiv",
    "version": 1
  }
}