Pith Number

pith:QTKV3UUQ

pith:2025:QTKV3UUQ2363WGZTQJS4WP3XXH

not attested not anchored not stored refs pending

History-Deterministic Parity Automata: Games, Complexity, and the 2-Token Theorem

Keya Prakash

arxiv:2501.12302 v1 · 2025-01-21 · 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{QTKV3UUQ2363WGZTQJS4WP3XXH}

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	2026-05-28T21:06:52.638548Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84d55dd290d6fdbb1b338265cb3f77b9f7e46c2c1952ac93d34b5b7d014816e3

Aliases

arxiv: 2501.12302 · arxiv_version: 2501.12302v1 · doi: 10.48550/arxiv.2501.12302 · pith_short_12: QTKV3UUQ2363 · pith_short_16: QTKV3UUQ2363WGZT · pith_short_8: QTKV3UUQ

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/QTKV3UUQ2363WGZTQJS4WP3XXH \
  | 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: 84d55dd290d6fdbb1b338265cb3f77b9f7e46c2c1952ac93d34b5b7d014816e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8f873275f3be7ea08e0a65b3efd999199ac06f50ed3237f4c0b7d51423f536b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2025-01-21T17:15:38Z",
    "title_canon_sha256": "85ec150772a5879be863d99109a58abf85d866eca0c3cd4e2eeece007dde17f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.12302",
    "kind": "arxiv",
    "version": 1
  }
}