Pith Number

pith:57XZLDFM

pith:2009:57XZLDFMOHZRREPDEY2P6LPV7V

not attested not anchored not stored refs pending

Training of Instrumentalists and Development of New Technologies on SOFIA

Adair P. Lane, Alan T. Tokunaga, Alexander G. G. M. Tielens, Catherine B. Olkin, Cecilia Ceccarelli, Charles E. Woodward, Charles H. Townes, Charles M. Telesco, Christopher C. Packham, Christopher K. Walker, Dale P. Cruikshank, Dan P. Clemens, David A. Neufeld, David J. Hollenbach, Doyal A. Harper, Edward B. Churchwell, Edward W. Dunham, Edwin F. Erickson, Eric E. Becklin, Erick T. Young, Gary J. Melnick, Giovanni G. Fazio, Gordon Bjoraker, Hans-Peter Roeser, Harold P. Larson, Harriet L. Dinerstein, Ian Gatley, Janet P. Simpson, Jean-Paul Baluteau, John W. V. Storey, Jonas Zmuidzinas, Juergen Wolf, Kristen Sellgren, Lawrence J. Caroff, Louis J. Allamandola, Martin Cohen, Martin Harwit, Matthew A. Greenhouse, Michael Burton, Michael W. Werner, Paul Graf, Paul M. Harvey, Reinhard Genzel, Robert D. Gehrz, Roger H. Hildebrand, Scott A. Sandford, Stanley E. Whitcomb, Steven D. Lord, Suzanne Madden, Thomas L. Roellig

arxiv:0903.4240 v1 · 2009-03-25 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{57XZLDFMOHZRREPDEY2P6LPV7V}

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	2026-07-04T15:40:06.942065Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

efef958cac71f31891e32634ff2df5fd4b36f9574ff5bbf0831c24367ad74913

Aliases

arxiv: 0903.4240 · arxiv_version: 0903.4240v1 · doi: 10.48550/arxiv.0903.4240 · pith_short_12: 57XZLDFMOHZR · pith_short_16: 57XZLDFMOHZRREPD · pith_short_8: 57XZLDFM

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/57XZLDFMOHZRREPDEY2P6LPV7V \
  | 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: efef958cac71f31891e32634ff2df5fd4b36f9574ff5bbf0831c24367ad74913

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1bcab3816de505fa35efed0494a58829ef901661b3a494878c16e1adf7cd46da",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-03-25T05:43:41Z",
    "title_canon_sha256": "14e5c9679b17e80b42b1413b213b378e14810f5261ddc857a0bd6b29516ec68b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.4240",
    "kind": "arxiv",
    "version": 1
  }
}