Pith Number

pith:REEJBERI

pith:2025:REEJBERIBDE2UKKM2LGGMTPL54

not attested not anchored not stored refs pending

Undecidability of Translational Tiling with 2 Polycubes

Yoonhu Kim

arxiv:2508.11725 v1 · 2025-08-15 · 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{REEJBERIBDE2UKKM2LGGMTPL54}

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	2026-07-05T11:54:53.149479Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

890890922808c9aa294cd2cc664debef1179a8fea707d0d9b1b34aa9a1a067b1

Aliases

arxiv: 2508.11725 · arxiv_version: 2508.11725v1 · doi: 10.48550/arxiv.2508.11725 · pith_short_12: REEJBERIBDE2 · pith_short_16: REEJBERIBDE2UKKM · pith_short_8: REEJBERI

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/REEJBERIBDE2UKKM2LGGMTPL54 \
  | 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: 890890922808c9aa294cd2cc664debef1179a8fea707d0d9b1b34aa9a1a067b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9599965ea6edcad526d6e14451acdc133cb9a892a0b7d3d319aee279bd1e80c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2025-08-15T06:33:49Z",
    "title_canon_sha256": "3f5019555a0b0af5e156c419e7ec49606d86dd89d31adc5e6c4187e683ce64d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.11725",
    "kind": "arxiv",
    "version": 1
  }
}