Pith Number

pith:N2SMIAXU

pith:2018:N2SMIAXU5HEWHPLMSXBMODAK6W

not attested not anchored not stored refs pending

Supervised Nonnegative Matrix Factorization to Predict ICU Mortality Risk

Chengsheng Mao, Fei Wang, Guoqing Chao, Yuan Luo, Yuan Zhao

arxiv:1809.10680 v2 · 2018-09-27 · cs.LG · 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{N2SMIAXU5HEWHPLMSXBMODAK6W}

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	2026-05-18T00:03:44.993103Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ea4c402f4e9c963bd6c95c2c70c0af59e58b8c160553e3ba9bcc520f38c4671

Aliases

arxiv: 1809.10680 · arxiv_version: 1809.10680v2 · doi: 10.48550/arxiv.1809.10680 · pith_short_12: N2SMIAXU5HEW · pith_short_16: N2SMIAXU5HEWHPLM · pith_short_8: N2SMIAXU

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/N2SMIAXU5HEWHPLMSXBMODAK6W \
  | 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: 6ea4c402f4e9c963bd6c95c2c70c0af59e58b8c160553e3ba9bcc520f38c4671

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33eb8540ddf02e60a87608e32994225c0ec2758eb7c2c11e0dcce3d12fc71066",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-09-27T13:15:18Z",
    "title_canon_sha256": "d3831ad2a570e7e863d1106fb124ff9b950e0bd50cecca18d7004a5230f25ab3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.10680",
    "kind": "arxiv",
    "version": 2
  }
}