Pith Number

pith:FWKL3VJY

pith:2009:FWKL3VJYMDFRF3YUUY5SK5ZVFF

not attested not anchored not stored refs pending

The checkerboard family of entangled states of two qutrits

Dragomir Z. Djokovic

arxiv:0911.2797 v3 · 2009-11-14 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FWKL3VJYMDFRF3YUUY5SK5ZVFF}

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	2026-05-18T04:32:43.691153Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d94bdd53860cb12ef14a63b2577352968aeae03804e7c733054494a03d37295

Aliases

arxiv: 0911.2797 · arxiv_version: 0911.2797v3 · doi: 10.48550/arxiv.0911.2797 · pith_short_12: FWKL3VJYMDFR · pith_short_16: FWKL3VJYMDFRF3YU · pith_short_8: FWKL3VJY

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/FWKL3VJYMDFRF3YUUY5SK5ZVFF \
  | 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: 2d94bdd53860cb12ef14a63b2577352968aeae03804e7c733054494a03d37295

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e598e346bca81ba74cce5bcaafa0ce240f6d03cb9605b8c24f9faffa384c39f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-11-14T19:28:46Z",
    "title_canon_sha256": "a4733b702c21e2568fdfa08d90e1f038a5f64c386e290bf4d699a6c1e4ccdd3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.2797",
    "kind": "arxiv",
    "version": 3
  }
}