Pith Number

pith:4SWLDFTL

pith:2016:4SWLDFTL4Y3CILQLJRCWJYGKFX

not attested not anchored not stored refs pending

Predominantly Low Metallicities Measured in a Stratified Sample of Lyman Limit Systems at z=3.7

Ana Glidden, John M. O'Meara, Kathy L. Cooksey, Robert A. Simcoe, Thomas J. Cooper

arxiv:1604.02144 v2 · 2016-04-07 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4SWLDFTL4Y3CILQLJRCWJYGKFX}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:53:17.574292Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4acb1966be636242e0b4c4564e0ca2de556b96ac2f388a4252bbe5f884d86ba

Aliases

arxiv: 1604.02144 · arxiv_version: 1604.02144v2 · doi: 10.48550/arxiv.1604.02144 · pith_short_12: 4SWLDFTL4Y3C · pith_short_16: 4SWLDFTL4Y3CILQL · pith_short_8: 4SWLDFTL

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/4SWLDFTL4Y3CILQLJRCWJYGKFX \
  | 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: e4acb1966be636242e0b4c4564e0ca2de556b96ac2f388a4252bbe5f884d86ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37242045eac0b036cc1accfdc8eaa7fd7fa84b15874cec03d6b3cdf1fb181b2e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-04-07T20:00:00Z",
    "title_canon_sha256": "478518c507c7f114e5394582f34e66bf7e6caaf8f0e8f3f1fa59dcb6ffa644b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.02144",
    "kind": "arxiv",
    "version": 2
  }
}