Pith Number

pith:WNQVCLOQ

pith:2026:WNQVCLOQTWPHRLPELOIJIWJEPN

not attested not anchored not stored refs pending

Essential Subspace Merging for Multi-Task Learning

Lei Qi, Longhua Li, Qi Tian, Xin Geng

arxiv:2606.19164 v1 · 2026-06-17 · cs.LG · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WNQVCLOQTWPHRLPELOIJIWJEPN}

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	2026-06-19T16:11:58.268033Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b361512dd09d9e78ade45b909459247b7da28686944c79543f3b3cdefb6a1e1a

Aliases

arxiv: 2606.19164 · arxiv_version: 2606.19164v1 · doi: 10.48550/arxiv.2606.19164 · pith_short_12: WNQVCLOQTWPH · pith_short_16: WNQVCLOQTWPHRLPE · pith_short_8: WNQVCLOQ

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/WNQVCLOQTWPHRLPELOIJIWJEPN \
  | 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: b361512dd09d9e78ade45b909459247b7da28686944c79543f3b3cdefb6a1e1a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "673ef6133ecf9f45f8940d448993f7b31c59600685ece6dac93e714aa32f0811",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-06-17T15:07:11Z",
    "title_canon_sha256": "09d34e8488a018016a811dd9d19fe02989239c6149c7f4eaebcd5e0d11e08293"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.19164",
    "kind": "arxiv",
    "version": 1
  }
}