Pith Number

pith:QGOBG32B

pith:1999:QGOBG32BV7FTZQMRLPFOUW4XMY

not attested not anchored not stored refs pending

State Abstraction in MAXQ Hierarchical Reinforcement Learning

Thomas G. Dietterich

arxiv:cs/9905015 v1 · 1999-05-21 · 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{QGOBG32BV7FTZQMRLPFOUW4XMY}

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	2026-07-04T14:25:10.806287Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

819c136f41afcb3cc1915bcaea5b976614ff440e5b17b3f19725d283998ba110

Aliases

arxiv: cs/9905015 · arxiv_version: cs/9905015v1 · doi: 10.48550/arxiv.cs/9905015 · pith_short_12: QGOBG32BV7FT · pith_short_16: QGOBG32BV7FTZQMR · pith_short_8: QGOBG32B

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/QGOBG32BV7FTZQMRLPFOUW4XMY \
  | 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: 819c136f41afcb3cc1915bcaea5b976614ff440e5b17b3f19725d283998ba110

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60186de0006181b5d43c22e0532835d2ba41c321e49f45486e6b9214cb4d6b88",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.LG",
    "submitted_at": "1999-05-21T14:49:39Z",
    "title_canon_sha256": "0c9e26e0ab6980c5fb961d1dda4d566d917e8e16d8b1c71b6187e03d5bbe3d3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/9905015",
    "kind": "arxiv",
    "version": 1
  }
}