Pith Number

pith:5JUL7VIJ

pith:2009:5JUL7VIJ2VU6GG3TLU5EJ5QDC5

not attested not anchored not stored refs pending

Dissecting the Lyman Alpha Emission Halo of LAB1

1), 2), (2) Dunlap Institute, (3) Durham, (4) Swinburne, (5) ESO), A.M. Swinbank (3), A. Weijmans (1, J.E. Geach (3), P.T. de Zeeuw (5, R.G. Bower (3), R.J. Wilman (4), S.L. Morris (3) ((1) Sterrewacht Leiden

arxiv:0911.3667 v1 · 2009-11-18 · 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{5JUL7VIJ2VU6GG3TLU5EJ5QDC5}

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	2026-05-18T02:10:46.169437Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea68bfd509d569e31b735d3a44f60317692f58116be567c10d51fbca69d14925

Aliases

arxiv: 0911.3667 · arxiv_version: 0911.3667v1 · doi: 10.48550/arxiv.0911.3667 · pith_short_12: 5JUL7VIJ2VU6 · pith_short_16: 5JUL7VIJ2VU6GG3T · pith_short_8: 5JUL7VIJ

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/5JUL7VIJ2VU6GG3TLU5EJ5QDC5 \
  | 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: ea68bfd509d569e31b735d3a44f60317692f58116be567c10d51fbca69d14925

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6b073fcabf11e9ed370a4e60e2dd37a699a299173c8cb89a7446c42b6020dc8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-11-18T22:05:00Z",
    "title_canon_sha256": "73cbca1a0bb8f279a27ae43752ccb47ec6f061eb469d5df1b62f3eb37dd8a0ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.3667",
    "kind": "arxiv",
    "version": 1
  }
}