Pith Number

pith:VVSHAIF3

pith:2015:VVSHAIF3QYEZMRBQU4RUHPL7JS

not attested not anchored not stored refs pending

Regularized Multi-Task Learning for Multi-Dimensional Log-Density Gradient Estimation

Hiroaki Sasaki, Ikko Yamane, Masashi Sugiyama

arxiv:1508.00085 v1 · 2015-08-01 · 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{VVSHAIF3QYEZMRBQU4RUHPL7JS}

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	2026-05-18T01:35:59.101677Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad647020bb8609964430a72343bd7f4c8db5908f278226db22c7ccfa1b04c422

Aliases

arxiv: 1508.00085 · arxiv_version: 1508.00085v1 · doi: 10.48550/arxiv.1508.00085 · pith_short_12: VVSHAIF3QYEZ · pith_short_16: VVSHAIF3QYEZMRBQ · pith_short_8: VVSHAIF3

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/VVSHAIF3QYEZMRBQU4RUHPL7JS \
  | 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: ad647020bb8609964430a72343bd7f4c8db5908f278226db22c7ccfa1b04c422

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b51b1af8f8a9a4ee9bfb45bbf65ff80d73674fdd185009eb78a404c1e178f9d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2015-08-01T06:43:02Z",
    "title_canon_sha256": "2f0dc3262981fa4f253cdca43ad186e02070a595831adf6f43d94a5958aeee82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.00085",
    "kind": "arxiv",
    "version": 1
  }
}