Pith Number

pith:YLWIQAI5

pith:2019:YLWIQAI5WMFZ37ECXRBQIAVJXN

not attested not anchored not stored refs pending

Online Meta-Learning

Aravind Rajeswaran, Chelsea Finn, Sergey Levine, Sham Kakade

arxiv:1902.08438 v4 · 2019-02-22 · cs.LG · cs.AI · stat.ML

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

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	2026-05-17T23:41:30.620251Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2ec88011db30b9dfc82bc430402a9bb580bc0fb73136d5f87f6544ed29b96a9

Aliases

arxiv: 1902.08438 · arxiv_version: 1902.08438v4 · doi: 10.48550/arxiv.1902.08438 · pith_short_12: YLWIQAI5WMFZ · pith_short_16: YLWIQAI5WMFZ37EC · pith_short_8: YLWIQAI5

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/YLWIQAI5WMFZ37ECXRBQIAVJXN \
  | 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: c2ec88011db30b9dfc82bc430402a9bb580bc0fb73136d5f87f6544ed29b96a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28d00b3874b739ff92c69cfc16a42886da1daede6c44db145b952d4aba075d39",
    "cross_cats_sorted": [
      "cs.AI",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-02-22T11:20:42Z",
    "title_canon_sha256": "d54fc3c3ca6f0886bde1c9da965f06eeae880ec1b050745ec1b0241ae5283969"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.08438",
    "kind": "arxiv",
    "version": 4
  }
}