Pith Number

pith:PDKPA2N6

pith:2021:PDKPA2N6WV4A5BLSALWCJDDPHO

not attested not anchored not stored refs pending

Hierarchical Few-Shot Imitation with Skill Transition Models

Albert Zhan, Kourosh Hakhamaneshi, Michael Laskin, Pieter Abbeel, Ruihan Zhao

arxiv:2107.08981 v2 · 2021-07-19 · cs.LG · cs.AI · cs.RO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PDKPA2N6WV4A5BLSALWCJDDPHO}

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	2026-07-05T04:03:37.018013Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78d4f069beb5780e857202ec248c6f3bae710383f7e448e577128c86184ac68d

Aliases

arxiv: 2107.08981 · arxiv_version: 2107.08981v2 · doi: 10.48550/arxiv.2107.08981 · pith_short_12: PDKPA2N6WV4A · pith_short_16: PDKPA2N6WV4A5BLS · pith_short_8: PDKPA2N6

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/PDKPA2N6WV4A5BLSALWCJDDPHO \
  | 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: 78d4f069beb5780e857202ec248c6f3bae710383f7e448e577128c86184ac68d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af5d14083aee4418dc0a47a5162c255fe8662bff4dcc10dfd333834a37ec365c",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.RO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-07-19T15:56:01Z",
    "title_canon_sha256": "2b4eab65cb282d24310caec51fabfb88c61e7431a0fbf525b5255a14d7a97e1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.08981",
    "kind": "arxiv",
    "version": 2
  }
}