Pith Number

pith:Y3IPCXQE

pith:2009:Y3IPCXQEDDZXS2RTIJ5TM7DOJE

not attested not anchored not stored refs pending

Understanding Lyman-alpha emitters

Daniel Kunth, Eric Gawiser, Goran Ostlin, Harold Francke, Kim K. Nilsson, Klaus Meisenheimer (Eds), Nicholas Bond, Toru Yamada

arxiv:0904.3335 v1 · 2009-04-21 · 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{Y3IPCXQEDDZXS2RTIJ5TM7DOJE}

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	2026-05-18T02:13:58.389939Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6d0f15e0418f3796a33427b367c6e493adcf64c46884b170020fb14a267d170

Aliases

arxiv: 0904.3335 · arxiv_version: 0904.3335v1 · doi: 10.48550/arxiv.0904.3335 · pith_short_12: Y3IPCXQEDDZX · pith_short_16: Y3IPCXQEDDZXS2RT · pith_short_8: Y3IPCXQE

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/Y3IPCXQEDDZXS2RTIJ5TM7DOJE \
  | 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: c6d0f15e0418f3796a33427b367c6e493adcf64c46884b170020fb14a267d170

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aab2d11d3a3accc46f753ca70b440090f2a48a925b5419683394cf4961326990",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-04-21T20:09:25Z",
    "title_canon_sha256": "5e78ef774c474db96748d0dbfddad09c2f259839a82fe7c7f128d2c5104c588e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.3335",
    "kind": "arxiv",
    "version": 1
  }
}