Pith Number

pith:XL3PBSRO

pith:2009:XL3PBSROYS6N6HBKZCDWLURLJQ

not attested not anchored not stored refs pending

High Resolution Mid-Infrared Spectroscopy of NGC 7538 IRS 1: Probing Chemistry in a Massive Young Stellar Object

C. Knez, E. F. van Dishoeck, II, J. H. Lacy, M. J. Richter, N. J. Evans

arxiv:0902.0610 v1 · 2009-02-03 · 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{XL3PBSROYS6N6HBKZCDWLURLJQ}

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	2026-05-18T03:48:02.910733Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

baf6f0ca2ec4bcdf1c2ac88765d22b4c2240b8ec22c53fe4f8d9f432b14fc928

Aliases

arxiv: 0902.0610 · arxiv_version: 0902.0610v1 · doi: 10.48550/arxiv.0902.0610 · pith_short_12: XL3PBSROYS6N · pith_short_16: XL3PBSROYS6N6HBK · pith_short_8: XL3PBSRO

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/XL3PBSROYS6N6HBKZCDWLURLJQ \
  | 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: baf6f0ca2ec4bcdf1c2ac88765d22b4c2240b8ec22c53fe4f8d9f432b14fc928

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e66382ef214dceee608497ccd0cc4cf014dfc85aa8640085921a840f4bb4e89c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-02-03T21:00:51Z",
    "title_canon_sha256": "c0180c151640dcd02337eb81bef8e4a187d69e05fe7748586921b65a37585fdd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.0610",
    "kind": "arxiv",
    "version": 1
  }
}