Pith Number

pith:H4RLGPTK

pith:2026:H4RLGPTK4FG3BIU4AQXGMYRVDF

not attested not anchored not stored refs pending

Multi-task learning on partially labeled datasets via invariant/equivariant semi-supervised learning

Alessandro Pieropan, Atsuto Maki, Hossein Azizpour, Miquel Mart\'i i Rabad\'an

arxiv:2605.17624 v1 · 2026-05-17 · cs.CV · 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{H4RLGPTK4FG3BIU4AQXGMYRVDF}

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	2026-05-20T00:04:49.289936Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f22b33e6ae14db0a29c042e666235195941528c80e8c1911b35222fbf51cd3e

Aliases

arxiv: 2605.17624 · arxiv_version: 2605.17624v1 · doi: 10.48550/arxiv.2605.17624 · pith_short_12: H4RLGPTK4FG3 · pith_short_16: H4RLGPTK4FG3BIU4 · pith_short_8: H4RLGPTK

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/H4RLGPTK4FG3BIU4AQXGMYRVDF \
  | 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: 3f22b33e6ae14db0a29c042e666235195941528c80e8c1911b35222fbf51cd3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05f05728da23729b1f1c853f01e0819ba41209a4084efc40b50dfc35abc9d5b0",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-05-17T19:43:05Z",
    "title_canon_sha256": "2dbca930a3a2b7b2b04a32e8f82f7fee31ee10327ea011c758ef4fe5c3893cc5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.17624",
    "kind": "arxiv",
    "version": 1
  }
}