Pith Number

pith:NZ6IUWO2

pith:2011:NZ6IUWO2UKN63OUF2XCZVUGOFH

not attested not anchored not stored refs pending

Extracting Features from Ratings: The Role of Factor Models

Joachim Selke, Wolf-Tilo Balke

arxiv:1101.2378 v1 · 2011-01-12 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NZ6IUWO2UKN63OUF2XCZVUGOFH}

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	2026-05-18T04:31:43.111798Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e7c8a59daa29bedba85d5c59ad0ce29eb92be3c5428f8a3eb7dcb05c9e3e677

Aliases

arxiv: 1101.2378 · arxiv_version: 1101.2378v1 · doi: 10.48550/arxiv.1101.2378 · pith_short_12: NZ6IUWO2UKN6 · pith_short_16: NZ6IUWO2UKN63OUF · pith_short_8: NZ6IUWO2

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/NZ6IUWO2UKN63OUF2XCZVUGOFH \
  | 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: 6e7c8a59daa29bedba85d5c59ad0ce29eb92be3c5428f8a3eb7dcb05c9e3e677

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd2b7fdd54a098d6bbb514f85f1ec85bb467f47b8ffeb427b5b7f4198b3ca098",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2011-01-12T14:56:01Z",
    "title_canon_sha256": "a202929de5fdd2a9f467c3dd9c3dcf3bc2e2c7ad4840b0841a8d1b9c2834787b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.2378",
    "kind": "arxiv",
    "version": 1
  }
}