Pith Number

pith:4PKPLOBK

pith:2019:4PKPLOBKVIOASHGIWP2PJSFABM

not attested not anchored not stored refs pending

Multi-Task Networks With Universe, Group, and Task Feature Learning

Markus Dreyer, Mengwen Liu, Shiva Pentyala

arxiv:1907.01791 v1 · 2019-07-03 · cs.CL · cs.AI · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4PKPLOBKVIOASHGIWP2PJSFABM}

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	2026-05-17T23:41:35.063881Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3d4f5b82aaa1c091cc8b3f4f4c8a00b34657ff9b2a1dc58608e1b74cecad7df

Aliases

arxiv: 1907.01791 · arxiv_version: 1907.01791v1 · doi: 10.48550/arxiv.1907.01791 · pith_short_12: 4PKPLOBKVIOA · pith_short_16: 4PKPLOBKVIOASHGI · pith_short_8: 4PKPLOBK

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/4PKPLOBKVIOASHGIWP2PJSFABM \
  | 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: e3d4f5b82aaa1c091cc8b3f4f4c8a00b34657ff9b2a1dc58608e1b74cecad7df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "249cf77295e588229377aafd1b8b2639dd4616709ce5a31cec6ee3ee41efc020",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-07-03T08:39:14Z",
    "title_canon_sha256": "760eb61ecaa58cb19827853f66fb865e0d511389366c21e71d21064f6f61d1a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.01791",
    "kind": "arxiv",
    "version": 1
  }
}