Pith Number

pith:OQ2ATGVI

pith:2009:OQ2ATGVILXUOABI7X6SMPS6QZ5

not attested not anchored not stored refs pending

Limits of Learning about a Categorical Latent Variable under Prior Near-Ignorance

Alberto Piatti, Fabio Trojani, Marco Zaffalon, Marcus Hutter

arxiv:0904.4527 v1 · 2009-04-29 · 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{OQ2ATGVILXUOABI7X6SMPS6QZ5}

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	2026-05-18T02:47:51.504531Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7434099aa85de8e0051fbfa4c7cbd0cf792fcfd203e3d159bba6681de9655ee1

Aliases

arxiv: 0904.4527 · arxiv_version: 0904.4527v1 · doi: 10.48550/arxiv.0904.4527 · pith_short_12: OQ2ATGVILXUO · pith_short_16: OQ2ATGVILXUOABI7 · pith_short_8: OQ2ATGVI

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/OQ2ATGVILXUOABI7X6SMPS6QZ5 \
  | 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: 7434099aa85de8e0051fbfa4c7cbd0cf792fcfd203e3d159bba6681de9655ee1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "924bca8a2faa01c41789d49d8e456c5392275fc7a42a927481c05ae6abfee3b1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2009-04-29T03:16:20Z",
    "title_canon_sha256": "3a18b3d694c8ac36c8864100270c98e11e6e0a5d1c0a1132dd667f25a2b7b5cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.4527",
    "kind": "arxiv",
    "version": 1
  }
}