Pith Number

pith:2K2YMXTC

pith:2012:2K2YMXTCQEGJSY7SXYSNVT56ME

not attested not anchored not stored refs pending

Hitting Matrix and Domino Tiling with Diagonal Impurities

Fumihiko Nakano, Taizo Sadahiro

arxiv:1211.5928 v1 · 2012-11-26 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2K2YMXTCQEGJSY7SXYSNVT56ME}

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	2026-05-18T01:52:55.128568Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2b5865e62810c9963f2be24dacfbe610d1fbf4e71de51a24b4f431dcf4fbdb0

Aliases

arxiv: 1211.5928 · arxiv_version: 1211.5928v1 · doi: 10.48550/arxiv.1211.5928 · pith_short_12: 2K2YMXTCQEGJ · pith_short_16: 2K2YMXTCQEGJSY7S · pith_short_8: 2K2YMXTC

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/2K2YMXTCQEGJSY7SXYSNVT56ME \
  | 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: d2b5865e62810c9963f2be24dacfbe610d1fbf4e71de51a24b4f431dcf4fbdb0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a2fc2b27e43c768b46cd7ed0762afda800ccec8a4ffa38b52318c991aa74d9b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-11-26T12:16:08Z",
    "title_canon_sha256": "e12c43985b2e3e0479241e697917aa70d782f9c156a2a21a80fc9f0f69e346df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.5928",
    "kind": "arxiv",
    "version": 1
  }
}