Pith Number

pith:USVAANPM

pith:2019:USVAANPMIO7O3KC555LDYNBOIQ

not attested not anchored not stored refs pending

Semantic RL with Action Grammars: Data-Efficient Learning of Hierarchical Task Abstractions

Aldo Faisal, Robert Tjarko Lange

arxiv:1907.12477 v2 · 2019-07-29 · cs.LG · cs.AI · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{USVAANPMIO7O3KC555LDYNBOIQ}

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	2026-07-05T00:06:10.140077Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4aa0035ec43beeda85def563c342e4422b5f220bcee7224a1367b44b0fe5633

Aliases

arxiv: 1907.12477 · arxiv_version: 1907.12477v2 · doi: 10.48550/arxiv.1907.12477 · pith_short_12: USVAANPMIO7O · pith_short_16: USVAANPMIO7O3KC5 · pith_short_8: USVAANPM

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/USVAANPMIO7O3KC555LDYNBOIQ \
  | 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: a4aa0035ec43beeda85def563c342e4422b5f220bcee7224a1367b44b0fe5633

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e110d9cfcfc75eb69d7c5c2dc65a3989fdbd35559dec92f2fa7c38f8d117557",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-07-29T15:27:50Z",
    "title_canon_sha256": "55c7fd81263dddc45a11124c9a7bf275ae64d8ba56db7c97ce0f7933cdd0d563"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.12477",
    "kind": "arxiv",
    "version": 2
  }
}