Pith Number

pith:5RIMJNEH

pith:2019:5RIMJNEHUZG6ZQTSFMHHY6KPBU

not attested not anchored not stored refs pending

Improvisation through Physical Understanding: Using Novel Objects as Tools with Visual Foresight

Annie Xie, Chelsea Finn, Frederik Ebert, Sergey Levine

arxiv:1904.05538 v1 · 2019-04-11 · cs.RO · cs.AI · 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{5RIMJNEHUZG6ZQTSFMHHY6KPBU}

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.

Cited by

3 papers in Pith

Reasoning and Generalization in RL: A Tool Use Perspective

RoboNet: Large-Scale Multi-Robot Learning

Ctrl-World: A Controllable Generative World Model for Robot Manipulation

Receipt and verification

First computed	2026-05-17T23:48:49.218037Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec50c4b487a64decc2722b0e7c794f0d206f4b321d241a698e6567808745e7a5

Aliases

arxiv: 1904.05538 · arxiv_version: 1904.05538v1 · doi: 10.48550/arxiv.1904.05538 · pith_short_12: 5RIMJNEHUZG6 · pith_short_16: 5RIMJNEHUZG6ZQTS · pith_short_8: 5RIMJNEH

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/5RIMJNEHUZG6ZQTSFMHHY6KPBU \
  | 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: ec50c4b487a64decc2722b0e7c794f0d206f4b321d241a698e6567808745e7a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33f8ff8d6924a4567ab8f102e36ae053e9da3115f4d9ab33821eaa66bd17cb85",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2019-04-11T05:20:57Z",
    "title_canon_sha256": "0602d3f54c00ba55974126943e17ba4dab4c0f03f226833761d0c690b763fc21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.05538",
    "kind": "arxiv",
    "version": 1
  }
}