Pith Number

pith:K4TTIOEQ

pith:2013:K4TTIOEQTFFOU2WB5JOUHWEOVI

not attested not anchored not stored refs pending

The Sloan Digital Sky Survey quasar catalog: tenth data release

Adam D. Myers, Alina Streblyanska, Andreu Font-Ribera, Arnaud Borde, Audrey Simmons, Benjamin A. Cook, Benjamin A. Weaver, Christophe Y\`eche, Daniel Oravetz, David J. Schlegel, Demitri Muna, Dmitry Bizyaev, Donald G. York, Donald P. Schneider, Elena Malanushenko, \'Eric Aubourg, Fred Hamann, Garrett Ebelke, Hayley Finley, Howard Brewington, Ian D. McGreer, Isabelle P\^aris, Isma\"el Perez-Fournon, Jian Ge, Jo Bovy, Joel R. Brownstein, Jon Brinkmann, Jordi Miralda-Escud\'e, Kaike Pan, Karen Kinemuchi, Linhua Jiang, Matteo Viel, Matthew Pieri, Michael A. Strauss, Moses Marchante, Nathalie Palanque-Delabrouille, Nicholas P. Ross, Nurten Filiz Ak, Pasquier Noterdaeme, Patrick B. Hall, Patrick Petitjean, Richard G. McMahon, Rog\'erio Riffel, Scott F. Anderson, Shirley Ho, Stephen Bailey, Viktor Malanushenko, William N. Brandt, W. Michael Wood-Vasey, Xiaohui Fan

arxiv:1311.4870 v1 · 2013-11-19 · 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{K4TTIOEQTFFOU2WB5JOUHWEOVI}

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	2026-05-18T01:46:22.867479Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5727343890994aea6ac1ea5d43d88eaa1700b13a992b0a8ed855f057668b5933

Aliases

arxiv: 1311.4870 · arxiv_version: 1311.4870v1 · doi: 10.48550/arxiv.1311.4870 · pith_short_12: K4TTIOEQTFFO · pith_short_16: K4TTIOEQTFFOU2WB · pith_short_8: K4TTIOEQ

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/K4TTIOEQTFFOU2WB5JOUHWEOVI \
  | 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: 5727343890994aea6ac1ea5d43d88eaa1700b13a992b0a8ed855f057668b5933

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76067b6d9eb6d4f6d27e31e2b2bfd51dac7a63ebd5eee105672cfd998bf3f766",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-11-19T20:42:39Z",
    "title_canon_sha256": "5f7738ff3d06bac91bd347b9249ec0b0dba63619b2700da30e158e6bd6af17d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.4870",
    "kind": "arxiv",
    "version": 1
  }
}