Pith Number

pith:MPPVV4MI

pith:2018:MPPVV4MI64J527ECXPASTDOPNI

not attested not anchored not stored refs pending

Catalog of quasars from the Kilo-Degree Survey Data Release 3

A. Pollo, A. Solarz, C. Spiniello, M. Bilicki, M. Brescia, N. Maddox, N.R. Napolitano, S. Nakoneczny

arxiv:1812.03084 v2 · 2018-12-07 · astro-ph.IM · astro-ph.CO · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MPPVV4MI64J527ECXPASTDOPNI}

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	2026-05-17T23:49:02.728227Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63df5af188f713dd7c82bbc1298dcf6a1bce31fcf9c9498608413f247d99f27a

Aliases

arxiv: 1812.03084 · arxiv_version: 1812.03084v2 · doi: 10.48550/arxiv.1812.03084 · pith_short_12: MPPVV4MI64J5 · pith_short_16: MPPVV4MI64J527EC · pith_short_8: MPPVV4MI

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/MPPVV4MI64J527ECXPASTDOPNI \
  | 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: 63df5af188f713dd7c82bbc1298dcf6a1bce31fcf9c9498608413f247d99f27a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0f4b4221ee95acce9e66f64d72c80fb100b0d40f116f7999978da85de73cda1",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-12-07T16:19:22Z",
    "title_canon_sha256": "37364966748c8e648220c2fac30de0c1e7d0fdbe9490dd44b6a8ef1ef916a48a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.03084",
    "kind": "arxiv",
    "version": 2
  }
}