Pith Number

pith:7D7WXKRA

pith:2017:7D7WXKRAENS57JWDQO6KWTTENH

not attested not anchored not stored refs pending

Infinite Sparse Structured Factor Analysis

Matthew C. Pearce, Simon R. White

arxiv:1704.04031 v1 · 2017-04-13 · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7D7WXKRAENS57JWDQO6KWTTENH}

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	2026-05-18T00:46:25.567219Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8ff6baa202365dfa6c383bcab4e6469d01295a7b9174f841ad614a050cf6d38

Aliases

arxiv: 1704.04031 · arxiv_version: 1704.04031v1 · doi: 10.48550/arxiv.1704.04031 · pith_short_12: 7D7WXKRAENS5 · pith_short_16: 7D7WXKRAENS57JWD · pith_short_8: 7D7WXKRA

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/7D7WXKRAENS57JWDQO6KWTTENH \
  | 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: f8ff6baa202365dfa6c383bcab4e6469d01295a7b9174f841ad614a050cf6d38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "383c00fcd42651c629bf02a2cdeecbba9baf3eac675b26f2b415d6df138fcf06",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2017-04-13T08:37:56Z",
    "title_canon_sha256": "183b24481bc6647ab66d6956c847859d8df6131bc3461423032b556a3bcdb41d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.04031",
    "kind": "arxiv",
    "version": 1
  }
}