Pith Number

pith:CXR5ZPRI

pith:2016:CXR5ZPRINBIFRJCBBEXP3M5WMO

not attested not anchored not stored refs pending

Self-Paced Multi-Task Learning

Changsheng Li, Fan Wei, Hongyuan Zha, Junchi Yan, Qingshan Liu, Weishan Dong

arxiv:1604.01474 v2 · 2016-04-06 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CXR5ZPRINBIFRJCBBEXP3M5WMO}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:47:29.270659Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15e3dcbe28685058a441092efdb3b663a229722af98310a99ecf872c0ee80874

Aliases

arxiv: 1604.01474 · arxiv_version: 1604.01474v2 · doi: 10.48550/arxiv.1604.01474 · pith_short_12: CXR5ZPRINBIF · pith_short_16: CXR5ZPRINBIFRJCB · pith_short_8: CXR5ZPRI

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/CXR5ZPRINBIFRJCBBEXP3M5WMO \
  | 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: 15e3dcbe28685058a441092efdb3b663a229722af98310a99ecf872c0ee80874

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ecae95b4780956b940388dc60db0b889a5fb847b23cc6505296898255b9c78bb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2016-04-06T03:44:03Z",
    "title_canon_sha256": "9af74df5cf0635a9ff466293dc18a2835afaa62548aa7779384a60cde5d01d9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.01474",
    "kind": "arxiv",
    "version": 2
  }
}