Pith Number

pith:EKDQSSUE

pith:2018:EKDQSSUED6EC76QLEDIHU3GVTH

not attested not anchored not stored refs pending

Origin of Metals around Galaxies I: Catalogs of Metal-line Absorption Doublets from High-Resolution Quasar Spectra

Ignasi P\'erez-R\`afols, John K. Webb, John M. O'Meara, Jordi Miralda-Escud\'e, Joseph F. Hennawi, Llu\'is Mas-Ribas, Michael T. Murphy, Signe Riemer-S{\o}rensen

arxiv:1805.00483 v2 · 2018-05-01 · 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{EKDQSSUED6EC76QLEDIHU3GVTH}

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	2026-05-18T00:08:41.933615Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2287094a841f882ffa0b20d07a6cd599e4819e09fc3b711cad5fe3944b191a0a

Aliases

arxiv: 1805.00483 · arxiv_version: 1805.00483v2 · doi: 10.48550/arxiv.1805.00483 · pith_short_12: EKDQSSUED6EC · pith_short_16: EKDQSSUED6EC76QL · pith_short_8: EKDQSSUE

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/EKDQSSUED6EC76QLEDIHU3GVTH \
  | 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: 2287094a841f882ffa0b20d07a6cd599e4819e09fc3b711cad5fe3944b191a0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f169f87a0891ffbcc38d654fbac9fdecec3fb4b772c7aecfa84803c561dc4c29",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-05-01T18:00:01Z",
    "title_canon_sha256": "1f07a8028bcd410eeb9817f264d86e9802d26ade8c47772522efbaeaa0a3f224"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.00483",
    "kind": "arxiv",
    "version": 2
  }
}