Pith Number

pith:64JRWJTK

pith:2025:64JRWJTK43D7LWWEDINZLS5JPC

not attested not anchored not stored refs pending

Project Patti: Why can You Solve Diabolical Puzzles on one Sudoku Website but not Easy Puzzles on another Sudoku Website?

Arman Eisenkolb-Vaithyanathan

arxiv:2507.21137 v1 · 2025-07-22 · 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{64JRWJTK43D7LWWEDINZLS5JPC}

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	2026-07-05T11:44:31.886773Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7131b266ae6c7f5dac41a1b95cba978a1324f18174219598b5c7345494466c7

Aliases

arxiv: 2507.21137 · arxiv_version: 2507.21137v1 · doi: 10.48550/arxiv.2507.21137 · pith_short_12: 64JRWJTK43D7 · pith_short_16: 64JRWJTK43D7LWWE · pith_short_8: 64JRWJTK

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/64JRWJTK43D7LWWEDINZLS5JPC \
  | 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: f7131b266ae6c7f5dac41a1b95cba978a1324f18174219598b5c7345494466c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae451e079daf20e07196e732fdb19cda6435bd1aead7c387ee5674ffc659524e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2025-07-22T22:32:30Z",
    "title_canon_sha256": "10f58a134f8d3be16c41450399805aade90a558ab78abfe1c1e8e29782130cdb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.21137",
    "kind": "arxiv",
    "version": 1
  }
}