Pith Number

pith:QZPYMSKM

pith:2016:QZPYMSKMG5F34EF4OETGHNW5WT

not attested not anchored not stored refs pending

The IMP game: Learnability, approximability and adversarial learning beyond $\Sigma^0_1$

David L. Dowe, Michael Brand

arxiv:1602.02743 v1 · 2016-02-07 · cs.LO · cs.AI · cs.CC · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QZPYMSKMG5F34EF4OETGHNW5WT}

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	2026-05-18T01:21:08.214656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

865f86494c374bbe10bc712663b6ddb4f8c5ff2895af74356365bce5236d0622

Aliases

arxiv: 1602.02743 · arxiv_version: 1602.02743v1 · doi: 10.48550/arxiv.1602.02743 · pith_short_12: QZPYMSKMG5F3 · pith_short_16: QZPYMSKMG5F34EF4 · pith_short_8: QZPYMSKM

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/QZPYMSKMG5F34EF4OETGHNW5WT \
  | 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: 865f86494c374bbe10bc712663b6ddb4f8c5ff2895af74356365bce5236d0622

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3ec69cd9c0af3681c230b8a4c4b2ab446fe9eb1da43d50d2d42a6f9e158168d",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CC",
      "cs.FL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2016-02-07T04:17:17Z",
    "title_canon_sha256": "6d3350f6b9e9915414275ab0ed3f1c17a16f85ec335c2e1a2162ad83d52c9c88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.02743",
    "kind": "arxiv",
    "version": 1
  }
}