Pith Number

pith:TCNJDQHS

pith:2019:TCNJDQHS7CWQ64QRBQNADQ6WQ7

not attested not anchored not stored refs pending

Why Does Hierarchy (Sometimes) Work So Well in Reinforcement Learning?

Haoran Tang, Honglak Lee, Ofir Nachum, Sergey Levine, Shixiang Gu, Xingyu Lu

arxiv:1909.10618 v2 · 2019-09-23 · cs.LG · cs.AI · stat.ML

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\usepackage{pith}
\pithnumber{TCNJDQHS7CWQ64QRBQNADQ6WQ7}

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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

5 papers in Pith

Direct Preference Optimization for Primitive-Enabled Hierarchical RL: A Bilevel Approach

Implicit Safety Alignment from Crowd Preferences

Strict Subgoal Execution: Reliable Long-Horizon Planning in Hierarchical Reinforcement Learning

Quantum Hierarchical Reinforcement Learning via Variational Quantum Circuits

Learning to Theorize the World from Observation

Receipt and verification

First computed	2026-07-05T00:28:54.063336Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

989a91c0f2f8ad0f72110c1a01c3d687ed8cf104d341e5f2401770eebf3aae4d

Aliases

arxiv: 1909.10618 · arxiv_version: 1909.10618v2 · doi: 10.48550/arxiv.1909.10618 · pith_short_12: TCNJDQHS7CWQ · pith_short_16: TCNJDQHS7CWQ64QR · pith_short_8: TCNJDQHS

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/TCNJDQHS7CWQ64QRBQNADQ6WQ7 \
  | 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: 989a91c0f2f8ad0f72110c1a01c3d687ed8cf104d341e5f2401770eebf3aae4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ac9d29e809abd18ee569453107580610cce872bc1bd1022893041e7972b3ef6",
    "cross_cats_sorted": [
      "cs.AI",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-09-23T21:11:30Z",
    "title_canon_sha256": "609a3f77e8c2ae3412b9001753703a0613a557e18fc35d3b9ae8314dd9ca3128"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.10618",
    "kind": "arxiv",
    "version": 2
  }
}