Pith Number

pith:JMBDVGEW

pith:2009:JMBDVGEWBDCQSWH5WIOERG2NIO

not attested not anchored not stored refs pending

On The Origin of Lyman-alpha Absorption in Nearby Starbursts and Implications for Other Galaxies

(2) Observatoire de Geneve, 3), (3) Laboratoire d'Astrophysique de Toulouse-Tarbes), Daniel Kunth (1) ((1) Institut d'Astrophysique de Paris, Daniel Schaerer (2, Hakim Atek (1)

arxiv:0905.1329 v1 · 2009-05-08 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JMBDVGEWBDCQSWH5WIOERG2NIO}

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	2026-05-18T02:13:46.282884Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b023a989608c50958fdb21c489b4d43ac4ce89838c8c78fe8afe9fe175e613f

Aliases

arxiv: 0905.1329 · arxiv_version: 0905.1329v1 · doi: 10.48550/arxiv.0905.1329 · pith_short_12: JMBDVGEWBDCQ · pith_short_16: JMBDVGEWBDCQSWH5 · pith_short_8: JMBDVGEW

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/JMBDVGEWBDCQSWH5WIOERG2NIO \
  | 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: 4b023a989608c50958fdb21c489b4d43ac4ce89838c8c78fe8afe9fe175e613f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d922d8f212c821ceaba32d02ad0aebeeb431422ef4502e765d909fe024aad8f9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-05-08T20:02:36Z",
    "title_canon_sha256": "ffd9b29dcc9f99b15d2a1bb432501fa1b03098d6c4e05b9cbde22acb728e0e1c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1329",
    "kind": "arxiv",
    "version": 1
  }
}