Pith Number

pith:L52Q3R7B

pith:2021:L52Q3R7BXOLVKSB5ZB6DUYFTQ7

not attested not anchored not stored refs pending

Efficiently Identifying Task Groupings for Multi-Task Learning

Chelsea Finn, Christopher Fifty, Ehsan Amid, Rohan Anil, Tianhe Yu, Zhe Zhao

arxiv:2109.04617 v2 · 2021-09-10 · cs.LG · cs.AI · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L52Q3R7BXOLVKSB5ZB6DUYFTQ7}

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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.

Cited by

1 paper in Pith

TLDChoiceNet: Quantitatively Choosing a Transfer Learning Dataset

Receipt and verification

First computed	2026-07-05T03:25:34.337203Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f750dc7e1bb9755483dc87c3a60b387f952044db4f1f8af6df4e57f3b25a705

Aliases

arxiv: 2109.04617 · arxiv_version: 2109.04617v2 · doi: 10.48550/arxiv.2109.04617 · pith_short_12: L52Q3R7BXOLV · pith_short_16: L52Q3R7BXOLVKSB5 · pith_short_8: L52Q3R7B

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/L52Q3R7BXOLVKSB5ZB6DUYFTQ7 \
  | 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: 5f750dc7e1bb9755483dc87c3a60b387f952044db4f1f8af6df4e57f3b25a705

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "acbb955428e72bf99d5eb88c624c7efb1aa167343315b86a2d3115f0a5494ef0",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-09-10T02:01:43Z",
    "title_canon_sha256": "85114284bb27392ebc60c4206afe67d141035ce2563e727b5318ceda2e44dd90"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.04617",
    "kind": "arxiv",
    "version": 2
  }
}