Pith Number

pith:VQA777IC

pith:2012:VQA777ICGOFDXSJ56XIPDHRBJQ

not attested not anchored not stored refs pending

Game arguments in computability theory and algorithmic information theory

Alexander Shen, Andrej Muchnik, Mikhail Vyugin

arxiv:1204.0198 v4 · 2012-04-01 · math.LO · cs.GT · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VQA777ICGOFDXSJ56XIPDHRBJQ}

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	2026-05-18T03:45:55.386259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac01fffd02338a3bc93df5d0f19e214c2a894f4c23228890ff28d2187687c89e

Aliases

arxiv: 1204.0198 · arxiv_version: 1204.0198v4 · doi: 10.48550/arxiv.1204.0198 · pith_short_12: VQA777ICGOFD · pith_short_16: VQA777ICGOFDXSJ5 · pith_short_8: VQA777IC

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/VQA777ICGOFDXSJ56XIPDHRBJQ \
  | 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: ac01fffd02338a3bc93df5d0f19e214c2a894f4c23228890ff28d2187687c89e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2822db32aa02cbd55656062344387eeae1ccd8120e0ec88572b0c658405734bc",
    "cross_cats_sorted": [
      "cs.GT",
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2012-04-01T11:34:49Z",
    "title_canon_sha256": "4a54fcc57c1937ddab579e0ba589f8069536a9419018fb31ec3e558578664bd2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.0198",
    "kind": "arxiv",
    "version": 4
  }
}