Pith Number

pith:UHCBJKZL

pith:2013:UHCBJKZLDSUGQPJOEC7TO5HP5R

not attested not anchored not stored refs pending

Exploring Low Luminosity Quasar Diversity at z ~ 2.5 with the Gran Telescopio Canarias

A. Del Olmo, J. W. Sulentic, P. Marziani

arxiv:1310.0613 v2 · 2013-10-02 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UHCBJKZLDSUGQPJOEC7TO5HP5R}

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	2026-05-18T01:47:16.577733Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1c414ab2b1ca8683d2e20bf3774efec48057f7841ba3aa529a9cfb69f69140f

Aliases

arxiv: 1310.0613 · arxiv_version: 1310.0613v2 · doi: 10.48550/arxiv.1310.0613 · pith_short_12: UHCBJKZLDSUG · pith_short_16: UHCBJKZLDSUGQPJO · pith_short_8: UHCBJKZL

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/UHCBJKZLDSUGQPJOEC7TO5HP5R \
  | 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: a1c414ab2b1ca8683d2e20bf3774efec48057f7841ba3aa529a9cfb69f69140f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "551c2c58c31ed9e5063444012d94e074ca0d3b5fe54ef2c887d8b377b7ba4686",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-10-02T07:51:58Z",
    "title_canon_sha256": "f2ccc3c2d2b782d31c2b440202a32341b6bde8d20ff4caee67d3053c2ec9cb28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.0613",
    "kind": "arxiv",
    "version": 2
  }
}