Pith Number

pith:JWNGROSK

pith:2018:JWNGROSKJIAMWSBMAEHX7F4D5A

not attested not anchored not stored refs pending

Neutral gas properties of Lyman continuum emitting galaxies: column densities and covering fractions from UV absorption lines

Anne Verhamme, Daniel Schaerer, Jane R. Rigby, John Chisholm, Matthew Bayliss, Simon Gazagnes

arxiv:1802.06378 v2 · 2018-02-18 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JWNGROSKJIAMWSBMAEHX7F4D5A}

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	2026-05-18T00:08:43.306809Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d9a68ba4a4a00cb482c010f7f9783e83374d78022769e12fe79b12218707fe1

Aliases

arxiv: 1802.06378 · arxiv_version: 1802.06378v2 · doi: 10.48550/arxiv.1802.06378 · pith_short_12: JWNGROSKJIAM · pith_short_16: JWNGROSKJIAMWSBM · pith_short_8: JWNGROSK

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/JWNGROSKJIAMWSBMAEHX7F4D5A \
  | 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: 4d9a68ba4a4a00cb482c010f7f9783e83374d78022769e12fe79b12218707fe1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6e5cf3bb3d298548ef11af69e01ec77ed7acbefa6e2849038d966f06144a409",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-02-18T13:40:42Z",
    "title_canon_sha256": "9e68ce29c927bad4bdd6b8388e663ce59f08d9cd98e25f563f60478c24c5c770"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.06378",
    "kind": "arxiv",
    "version": 2
  }
}