Pith Number

pith:P222IF53

pith:2011:P222IF53ENOUTOE2ZR3EJOW4IB

not attested not anchored not stored refs pending

Status of the Stratospheric Observatory for Infrared Astronomy (SOFIA)

A. Krabbe, E. E. Becklin, E. T. Young, G. H. L. Sandell, H. Zinnecker, J. de Buizer, L. D. Keller, P. M. Marcum, P. Temi, R. D. Gehrz, T. Herter, T. L. Roellig, W. D. Vacca

arxiv:1102.1050 v1 · 2011-02-05 · 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{P222IF53ENOUTOE2ZR3EJOW4IB}

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	2026-05-18T02:03:16.402202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7eb5a417bb235d49b89acc7644badc40563734e8e52e2e2dc8247c65b5bee89f

Aliases

arxiv: 1102.1050 · arxiv_version: 1102.1050v1 · doi: 10.48550/arxiv.1102.1050 · pith_short_12: P222IF53ENOU · pith_short_16: P222IF53ENOUTOE2 · pith_short_8: P222IF53

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/P222IF53ENOUTOE2ZR3EJOW4IB \
  | 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: 7eb5a417bb235d49b89acc7644badc40563734e8e52e2e2dc8247c65b5bee89f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2fedad2268eda994e08af3378404df09416d971ba238750b29a17af6f667478",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-02-05T04:23:10Z",
    "title_canon_sha256": "928b9f217caa5abc18ecba2e9ebf5fffdc55f54fafb2f16c2f965c2557d23077"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.1050",
    "kind": "arxiv",
    "version": 1
  }
}