Pith Number

pith:5VSJIXQJ

pith:2021:5VSJIXQJ6FOC7V5EVXCZVBSGSD

not attested not anchored not stored refs pending

How to distribute data across tasks for meta-learning?

Alberto Bernacchia, Alexandru Cioba, Da-shan Shiu, Georgios Batzolis, Jezabel Garcia, Michael Bromberg, Qian Wang, Ritwik Niyogi

arxiv:2103.08463 v3 · 2021-03-15 · 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{5VSJIXQJ6FOC7V5EVXCZVBSGSD}

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	2026-07-05T04:12:34.499352Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed64945e09f15c2fd7a4adc59a864690eefedffa0f175f4ee2b2b9a972a2be2c

Aliases

arxiv: 2103.08463 · arxiv_version: 2103.08463v3 · doi: 10.48550/arxiv.2103.08463 · pith_short_12: 5VSJIXQJ6FOC · pith_short_16: 5VSJIXQJ6FOC7V5E · pith_short_8: 5VSJIXQJ

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/5VSJIXQJ6FOC7V5EVXCZVBSGSD \
  | 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: ed64945e09f15c2fd7a4adc59a864690eefedffa0f175f4ee2b2b9a972a2be2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9d424f4f663d14d2850371613e7a1c70f1cebd021b8084c89696004ead31de2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-03-15T15:38:47Z",
    "title_canon_sha256": "e39bec780cde69edc6f1354a9cfe5abd51617ad2f420d26bc96db8b98505090e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.08463",
    "kind": "arxiv",
    "version": 3
  }
}