Pith Number

pith:TTDUZDPM

pith:2025:TTDUZDPM2DMXWV24VGECXKLVSV

not attested not anchored not stored refs pending

Slant/Gokigen Naname is NP-complete, and Some Variations are in P

Jack Spalding-Jamieson, Jayson Lynch

arxiv:2502.13536 v1 · 2025-02-19 · cs.DM · cs.CG · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TTDUZDPM2DMXWV24VGECXKLVSV}

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	2026-07-05T10:16:48.790834Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9cc74c8decd0d97b575ca9882ba975955680a88300e8d2d17aa2f12c4d5b2164

Aliases

arxiv: 2502.13536 · arxiv_version: 2502.13536v1 · doi: 10.48550/arxiv.2502.13536 · pith_short_12: TTDUZDPM2DMX · pith_short_16: TTDUZDPM2DMXWV24 · pith_short_8: TTDUZDPM

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/TTDUZDPM2DMXWV24VGECXKLVSV \
  | 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: 9cc74c8decd0d97b575ca9882ba975955680a88300e8d2d17aa2f12c4d5b2164

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3e424a051f9709f8b4d7c59fea5e99b2f303da9570339fe004819e711dd1263",
    "cross_cats_sorted": [
      "cs.CG",
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2025-02-19T08:41:55Z",
    "title_canon_sha256": "15a069b27254d9a1a495bc845a0fed23a69f4549bce2f76cace365ee8e9ebe02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.13536",
    "kind": "arxiv",
    "version": 1
  }
}