Pith Number

pith:WOCGWQ5A

pith:2016:WOCGWQ5AG7POH6BDB6ONHSMMLB

not attested not anchored not stored refs pending

Photo-z Estimation: An Example of Nonparametric Conditional Density Estimation under Selection Bias

Ann B. Lee, Peter E. Freeman, Rafael Izbicki

arxiv:1604.01339 v1 · 2016-04-05 · stat.AP · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WOCGWQ5AG7POH6BDB6ONHSMMLB}

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	2026-05-18T01:17:36.503438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3846b43a037dee3f8230f9cd3c98c587108f114bbee9317a4908e8dc05b01bc

Aliases

arxiv: 1604.01339 · arxiv_version: 1604.01339v1 · doi: 10.48550/arxiv.1604.01339 · pith_short_12: WOCGWQ5AG7PO · pith_short_16: WOCGWQ5AG7POH6BD · pith_short_8: WOCGWQ5A

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/WOCGWQ5AG7POH6BDB6ONHSMMLB \
  | 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: b3846b43a037dee3f8230f9cd3c98c587108f114bbee9317a4908e8dc05b01bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9e1d74f30fa119d62aff4a97ff375bdb9613482f9d0c207224cd3450ef674aa",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2016-04-05T17:26:12Z",
    "title_canon_sha256": "8462b2ed79597baddb5bcd4323074ed38caad7a60f9f6351b8d5fec871f64829"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.01339",
    "kind": "arxiv",
    "version": 1
  }
}