Pith Number

pith:6LXK2AUD

pith:2015:6LXK2AUDIN3REHMAWNDHLLRBJA

not attested not anchored not stored refs pending

Multi-Task Learning with Group-Specific Feature Space Sharing

Georgios C. Anagnostopoulos, Michael Georgiopoulos, Niloofar Yousefi

arxiv:1508.03329 v1 · 2015-08-13 · 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{6LXK2AUDIN3REHMAWNDHLLRBJA}

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	2026-05-18T01:35:21.075580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2eead02834377121d80b34675ae214805bbb7b4d9a07c02a3a4c63feaa02bba

Aliases

arxiv: 1508.03329 · arxiv_version: 1508.03329v1 · doi: 10.48550/arxiv.1508.03329 · pith_short_12: 6LXK2AUDIN3R · pith_short_16: 6LXK2AUDIN3REHMA · pith_short_8: 6LXK2AUD

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/6LXK2AUDIN3REHMAWNDHLLRBJA \
  | 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: f2eead02834377121d80b34675ae214805bbb7b4d9a07c02a3a4c63feaa02bba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "109999a6af09e15a1896bc672fc26b82aef428f398ed4ffd52f79f6b2b5695e6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-08-13T19:58:59Z",
    "title_canon_sha256": "2a249fb66184951ca4460b1b39f6dcdcd00150ac1ebabbe782331afa2da228b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.03329",
    "kind": "arxiv",
    "version": 1
  }
}