Pith Number

pith:UC45CGHB

pith:2017:UC45CGHBYZ4AOLWT6EP3RFKTUS

not attested not anchored not stored refs pending

Near-IR spectroscopy of luminous LoBAL quasars at 1<z<2.5

Andreas Schulze, Hideyuki Izumiura, Jari Kotilainen, Koki Terao, Malte Schramm, Tanya Urrutia, Thomas Reynolds, Tohru Nagao, Wenwen Zuo, Xue-Bing Wu

arxiv:1709.06335 v2 · 2017-09-19 · 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{UC45CGHBYZ4AOLWT6EP3RFKTUS}

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	2026-05-18T00:31:39.791855Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0b9d118e1c678072ed3f11fb89553a49b4836156d25f74d485b80ff1a2c81e2

Aliases

arxiv: 1709.06335 · arxiv_version: 1709.06335v2 · doi: 10.48550/arxiv.1709.06335 · pith_short_12: UC45CGHBYZ4A · pith_short_16: UC45CGHBYZ4AOLWT · pith_short_8: UC45CGHB

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/UC45CGHBYZ4AOLWT6EP3RFKTUS \
  | 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: a0b9d118e1c678072ed3f11fb89553a49b4836156d25f74d485b80ff1a2c81e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f4de1363969575ef002fefe21538a45f0d96ef17a54dee6d471c43bb20f4672",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-09-19T10:36:31Z",
    "title_canon_sha256": "74ea6a88bc4815018e8339eb68498984a58070d686c35013f272a73e9fe05210"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.06335",
    "kind": "arxiv",
    "version": 2
  }
}