Pith Number

pith:VR677JFC

pith:2018:VR677JFCGDRBT472QMKCXHRCRD

not attested not anchored not stored refs pending

"Press Space to Fire": Automatic Video Game Tutorial Generation

Ahmed Khalifa, Gabriella A. B. Barros, Julian Togelius, Michael Cerny Green

arxiv:1805.11768 v1 · 2018-05-30 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VR677JFCGDRBT472QMKCXHRCRD}

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	2026-05-18T00:14:36.579700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac7dffa4a230e219f3fa83142b9e2288c631e32e3e8d7efdb806ef5893b90bb6

Aliases

arxiv: 1805.11768 · arxiv_version: 1805.11768v1 · doi: 10.48550/arxiv.1805.11768 · pith_short_12: VR677JFCGDRB · pith_short_16: VR677JFCGDRBT472 · pith_short_8: VR677JFC

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/VR677JFCGDRBT472QMKCXHRCRD \
  | 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: ac7dffa4a230e219f3fa83142b9e2288c631e32e3e8d7efdb806ef5893b90bb6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8682bff5878f0d60d7c9790f4a968d39acaf6ac830c9181edad414ddf680b72",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2018-05-30T01:21:33Z",
    "title_canon_sha256": "cf45466f6216bf398603ad475fa5365ab43e0794d50e51d256d3788672f820d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.11768",
    "kind": "arxiv",
    "version": 1
  }
}