Pith Number

pith:GNMKC2YV

pith:2009:GNMKC2YV2HNYO5BDXUNJB6A26N

not attested not anchored not stored refs pending

Star Formation Indicators and Line Equivalent Width in Lyman Alpha Galaxies

Eduard Westra (1) ((1) CfA), Mark Dijkstra (1)

arxiv:0911.1357 v1 · 2009-11-06 · 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{GNMKC2YV2HNYO5BDXUNJB6A26N}

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	2026-05-18T02:10:58.548721Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3358a16b15d1db877423bd1a90f81af3573478dddc27b56263f30126adc5556b

Aliases

arxiv: 0911.1357 · arxiv_version: 0911.1357v1 · doi: 10.48550/arxiv.0911.1357 · pith_short_12: GNMKC2YV2HNY · pith_short_16: GNMKC2YV2HNYO5BD · pith_short_8: GNMKC2YV

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/GNMKC2YV2HNYO5BDXUNJB6A26N \
  | 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: 3358a16b15d1db877423bd1a90f81af3573478dddc27b56263f30126adc5556b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd8da09b93e8235533e3a9847153587eacfc69b0f9beb7cc7b1cbf749ec7a803",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-11-06T21:10:08Z",
    "title_canon_sha256": "f99fa5c376eb85233493865b7cd1f07d3b6f04cbe6c4207331d48077b1eebdde"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.1357",
    "kind": "arxiv",
    "version": 1
  }
}