Pith Number

pith:HQEJN2XN

pith:2010:HQEJN2XN3ISUMCUL5NMLM725P6

not attested not anchored not stored refs pending

Think Outside the Color Box: Probabilistic Target Selection and the SDSS-XDQSO Quasar Targeting Catalog

Adam D. Myers (UIUC, Benjamin A. Weaver, David J. Schlegel, David W. Hogg (NYU, Donald P. Schneider, Erin S. Sheldon, Ian D. McGreer, Jessica A. Kirkpatrick, Jo Bovy (NYU), Joseph F. Hennawi (MPIA), MPIA), Nicholas P. Ross

arxiv:1011.6392 v2 · 2010-11-29 · 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{HQEJN2XN3ISUMCUL5NMLM725P6}

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	2026-05-18T04:27:37.835118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c0896eaedda25460a8beb58b67f5d7fa129a016c88f2f818396be6b533e0b40

Aliases

arxiv: 1011.6392 · arxiv_version: 1011.6392v2 · doi: 10.48550/arxiv.1011.6392 · pith_short_12: HQEJN2XN3ISU · pith_short_16: HQEJN2XN3ISUMCUL · pith_short_8: HQEJN2XN

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/HQEJN2XN3ISUMCUL5NMLM725P6 \
  | 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: 3c0896eaedda25460a8beb58b67f5d7fa129a016c88f2f818396be6b533e0b40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e001116dc7b7b450664db1778ab646e328747f8112817897fa994b6d57de68a9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-11-29T21:17:19Z",
    "title_canon_sha256": "c01b9bdbecb0874eddd614d98599c428bb224d3c736b6a50b1d4b36864f540c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.6392",
    "kind": "arxiv",
    "version": 2
  }
}