Pith Number

pith:UDZEU7KE

pith:2019:UDZEU7KE5JKTF2XF6MSML37O6N

not attested not anchored not stored refs pending

The First Luminous Quasars and Their Host Galaxies

Aaron Barth (UCI), Anna-Christina Eilers (MPIA), Anton Koekemoer (STScI), Bram Venemans (MPIA), Chiara Mazzucchelli (ESO), Dan Stern (JPL), Dominik Riechers (Cornell, Eduardo Banados (MPIA), Emanuele Paolo Farina (MPIA & MPA), Fabian Walter (MPIA, Fabio Pacucci (Kapteyn, Feige Wang (UCSB), Gisella De Rosa (STScI), Hyunsung D. Jun (KIAS), James Rhoads (NASA GSFC), Jane Rigby (NASA GSFC), Jenny Greene (Princeton), Jinyi Yang (Arizona), Linhua Jiang (PKU), Marianne Vestergaard (NBI), Marta Volonteri (IAP), Melanie Habouzit (Flatiron CCA), Michael A. Strauss (Princeton), MPIA), NRAO), Robert A. Simcoe (MIT), Roberto Decarli (INAF-OAS), Sangeeta Malhotra (NASA GSFC), Tommaso Treu (UCLA), Xiaohui Fan (Arizona), Yale), Yue Shen (UIUC)

arxiv:1903.04078 v1 · 2019-03-10 · 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{UDZEU7KE5JKTF2XF6MSML37O6N}

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	2026-05-17T23:51:40.116411Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0f24a7d44ea5532eae5f324c5efeef379d540f140a9af9e11d9fc847ca52f47

Aliases

arxiv: 1903.04078 · arxiv_version: 1903.04078v1 · doi: 10.48550/arxiv.1903.04078 · pith_short_12: UDZEU7KE5JKT · pith_short_16: UDZEU7KE5JKTF2XF · pith_short_8: UDZEU7KE

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/UDZEU7KE5JKTF2XF6MSML37O6N \
  | 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: a0f24a7d44ea5532eae5f324c5efeef379d540f140a9af9e11d9fc847ca52f47

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a24cfb781450130e59b7a8a92035f424e428066c212d8dc521d92600e8a98a77",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-03-10T23:43:32Z",
    "title_canon_sha256": "05f47446590d4418e70ca7c31b0af00b4aa3febdb93e81eacde34b30c1a2b40c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.04078",
    "kind": "arxiv",
    "version": 1
  }
}