Pith Number

pith:BLZDAR32

pith:2017:BLZDAR32LKA2XSDN7FTKXXIWIM

not attested not anchored not stored refs pending

Cube-magic labelings of grids

Joe Ryan, Rachel Wulan Nirmalasari Wijaya, Thomas Kalinowski

arxiv:1702.02639 v1 · 2017-02-08 · math.CO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BLZDAR32LKA2XSDN7FTKXXIWIM}

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	2026-05-18T00:51:03.819598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0af230477a5a81abc86df966abdd16432464b02a32d51e65b79af44f7d6066e6

Aliases

arxiv: 1702.02639 · arxiv_version: 1702.02639v1 · doi: 10.48550/arxiv.1702.02639 · pith_short_12: BLZDAR32LKA2 · pith_short_16: BLZDAR32LKA2XSDN · pith_short_8: BLZDAR32

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/BLZDAR32LKA2XSDN7FTKXXIWIM \
  | 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: 0af230477a5a81abc86df966abdd16432464b02a32d51e65b79af44f7d6066e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c04500156dea57322d3cf8fe81f4959397bc58d9c223b79ed83e0711352053fd",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-02-08T22:22:40Z",
    "title_canon_sha256": "c9a561ba4308f2c88ec466d20c6925634aeb6382078cda4b797bc09c751a2caa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.02639",
    "kind": "arxiv",
    "version": 1
  }
}