Pith Number

pith:WJNLTRFO

pith:2016:WJNLTRFO2AXYI5ZPZDBDE6FYZ3

not attested not anchored not stored refs pending

On the selection of damped Lyman alpha systems using MgII absorption at 2<z<4

G. Becker, G. Cupani, G. Worseck, J.X. Prochaska, K. Denney, L. Christensen, R. Sanchez-Ramirez, S.L. Ellison, S. Lopez, T.A.M. Berg, V. D'Odorico

arxiv:1609.09081 v1 · 2016-09-28 · astro-ph.GA · 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{WJNLTRFO2AXYI5ZPZDBDE6FYZ3}

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	2026-05-18T01:01:21.947939Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b25ab9c4aed02f84772fc8c23278b8ceec39a8fd2ab138deea1ee8baf7340aaf

Aliases

arxiv: 1609.09081 · arxiv_version: 1609.09081v1 · doi: 10.48550/arxiv.1609.09081 · pith_short_12: WJNLTRFO2AXY · pith_short_16: WJNLTRFO2AXYI5ZP · pith_short_8: WJNLTRFO

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/WJNLTRFO2AXYI5ZPZDBDE6FYZ3 \
  | 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: b25ab9c4aed02f84772fc8c23278b8ceec39a8fd2ab138deea1ee8baf7340aaf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aed5b19049e2927156f27214c0ecbf9b34a47799f4f14e2ac86a37442414af92",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-09-28T20:00:03Z",
    "title_canon_sha256": "92204dbd52fb7ce015add8a15c2d885af0e9a2d0fc59502368caf6d08414ed9d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.09081",
    "kind": "arxiv",
    "version": 1
  }
}