Pith Number

pith:ALSLFNM5

pith:2018:ALSLFNM5FGD5NVX7R4D3ZDR3RI

not attested not anchored not stored refs pending

Neutral-Gas-Phase Metal Abundances in ZnII-Selected Quasar Absorption Line Systems near Redshift $z=1.2$

Daniel Burdette, David A. Turnshek, Eric M. Monier, Gendith M. Sardane, Sandhya M. Rao

arxiv:1811.08813 v1 · 2018-11-21 · 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{ALSLFNM5FGD5NVX7R4D3ZDR3RI}

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	2026-05-17T23:58:01.569261Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02e4b2b59d2987d6d6ff8f07bc8e3b8a3ae8cb1e3e74d67fc78dc6cf4b16565a

Aliases

arxiv: 1811.08813 · arxiv_version: 1811.08813v1 · doi: 10.48550/arxiv.1811.08813 · pith_short_12: ALSLFNM5FGD5 · pith_short_16: ALSLFNM5FGD5NVX7 · pith_short_8: ALSLFNM5

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/ALSLFNM5FGD5NVX7R4D3ZDR3RI \
  | 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: 02e4b2b59d2987d6d6ff8f07bc8e3b8a3ae8cb1e3e74d67fc78dc6cf4b16565a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98e90704704b75ce31fc00907f418dcdef95adc79a3448e36f447f27bb8019a6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-11-21T16:29:58Z",
    "title_canon_sha256": "8de776f869c2a350ebd2352bc63c498212c530a3e3e3e49456757f31667187d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.08813",
    "kind": "arxiv",
    "version": 1
  }
}