Pith Number

pith:36VCVQU5

pith:2011:36VCVQU5LPUHGKEEZGRYIY4ECH

not attested not anchored not stored refs pending

Discussion on "Techniques for Massive-Data Machine Learning in Astronomy" by A. Gray

BC, Canada), Nicholas M. Ball (Herzberg Institute of Astrophysics, Victoria

arxiv:1110.5688 v1 · 2011-10-26 · astro-ph.IM · astro-ph.CO · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{36VCVQU5LPUHGKEEZGRYIY4ECH}

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	2026-05-18T04:10:11.609708Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dfaa2ac29d5be8732884c9a384638411cad1e8c7ce2c2de962920646d445d229

Aliases

arxiv: 1110.5688 · arxiv_version: 1110.5688v1 · doi: 10.48550/arxiv.1110.5688 · pith_short_12: 36VCVQU5LPUH · pith_short_16: 36VCVQU5LPUHGKEE · pith_short_8: 36VCVQU5

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/36VCVQU5LPUHGKEEZGRYIY4ECH \
  | 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: dfaa2ac29d5be8732884c9a384638411cad1e8c7ce2c2de962920646d445d229

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "336e36efa506a722c9874f65a71cbaf1428d6f2709a9b2bee22b7eba9c7a35c8",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-10-26T00:22:36Z",
    "title_canon_sha256": "0e3b3bfcd759a649e522d7257b186b71e22ddad0cb331d5f43544a2e2bba76bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.5688",
    "kind": "arxiv",
    "version": 1
  }
}