Pith Number

pith:O3FRCPXR

pith:2013:O3FRCPXRBYUESXSRSIBPTPFA4A

not attested not anchored not stored refs pending

A First Look at creating mock catalogs with machine learning techniques

Barnabas Poczos, Hy Trac, Jeff Schneider, Michelle Ntampaka, Shirley Ho, Xiaoying Xu

arxiv:1303.1055 v1 · 2013-03-05 · 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{O3FRCPXRBYUESXSRSIBPTPFA4A}

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	2026-05-18T01:51:16.807164Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76cb113ef10e28495e519202f9bca0e03f3caa4d3a9338fe8d8dcebd917b0358

Aliases

arxiv: 1303.1055 · arxiv_version: 1303.1055v1 · doi: 10.48550/arxiv.1303.1055 · pith_short_12: O3FRCPXRBYUE · pith_short_16: O3FRCPXRBYUESXSR · pith_short_8: O3FRCPXR

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/O3FRCPXRBYUESXSRSIBPTPFA4A \
  | 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: 76cb113ef10e28495e519202f9bca0e03f3caa4d3a9338fe8d8dcebd917b0358

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30c5fc970b2fe4848227b41e40afde6044056107e69b40311614c52da16f1f20",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-03-05T14:50:37Z",
    "title_canon_sha256": "1d0640a98e4af07c5204d164995dd3303ff18f86681319a8ddd03b448f88085f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.1055",
    "kind": "arxiv",
    "version": 1
  }
}