Pith Number

pith:4W3ZU4SC

pith:2011:4W3ZU4SCVCYPQ53LGDGHCCQDNJ

not attested not anchored not stored refs pending

Photometric redshifts and quasar probabilities from a single, data-driven generative model

Adam D. Myers (U of Wyoming, Benjamin A. Weaver, David Schiminovich, David W. Hogg (NYU, Donald P. Schneider, Erin S. Sheldon, Jo Bovy (NYU), Jon Brinkmann, Joseph F. Hennawi (MPIA), MPIA), Richard G. McMahon

arxiv:1105.3975 v2 · 2011-05-19 · 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{4W3ZU4SCVCYPQ53LGDGHCCQDNJ}

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	2026-05-18T02:21:52.306607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5b79a7242a8b0f8776b30cc710a036a5b993aaad92a7ae86a6a651b17432add

Aliases

arxiv: 1105.3975 · arxiv_version: 1105.3975v2 · doi: 10.48550/arxiv.1105.3975 · pith_short_12: 4W3ZU4SCVCYP · pith_short_16: 4W3ZU4SCVCYPQ53L · pith_short_8: 4W3ZU4SC

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/4W3ZU4SCVCYPQ53LGDGHCCQDNJ \
  | 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: e5b79a7242a8b0f8776b30cc710a036a5b993aaad92a7ae86a6a651b17432add

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "227f224fa168fa1b7c3132ba92202e2f4d364973db9e9e5189dd7f5ae571c8b7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-05-19T20:00:02Z",
    "title_canon_sha256": "e0909e0056e954f44fb0a588bf5941d19bb78c9dcc3155467906036af17ee9c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.3975",
    "kind": "arxiv",
    "version": 2
  }
}