Pith Number

pith:WSLBZ7MR

pith:2019:WSLBZ7MR7PZAOZCPT43Q2BLP5F

not attested not anchored not stored refs pending

On the Emergence of Thousands of Absorption Lines in the Quasar PG1411+442: A Clumpy High-Column Density Outflow from the Broad Emission-Line Region?

David Rupke, Fred Hamann, Sylvain Veilleux, Todd M. Tripp

arxiv:1905.08201 v1 · 2019-05-20 · 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{WSLBZ7MR7PZAOZCPT43Q2BLP5F}

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	2026-05-17T23:43:00.205586Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4961cfd91fbf207644f9f370d056fe97b79a11cf7f3aadc56a435c454acfaa3

Aliases

arxiv: 1905.08201 · arxiv_version: 1905.08201v1 · doi: 10.48550/arxiv.1905.08201 · pith_short_12: WSLBZ7MR7PZA · pith_short_16: WSLBZ7MR7PZAOZCP · pith_short_8: WSLBZ7MR

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/WSLBZ7MR7PZAOZCPT43Q2BLP5F \
  | 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: b4961cfd91fbf207644f9f370d056fe97b79a11cf7f3aadc56a435c454acfaa3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe27e0d0b580b135eb203440628daa927a7e4f46001e1989b48a74ad1dc1b722",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-05-20T16:34:27Z",
    "title_canon_sha256": "f1f584e749a9878dea2db35bcf75233fda1a629946a50d692db2e31903cc9d53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.08201",
    "kind": "arxiv",
    "version": 1
  }
}