Pith Number

pith:PXKCULJS

pith:2014:PXKCULJSIR6QDNBE5LYUADSEVJ

not attested not anchored not stored refs pending

Perfect state transfer on distance-regular graphs and association schemes

Chris Godsil, Fr\'ed\'eric Vanhove, Gabriel Coutinho, Krystal Guo

arxiv:1401.1745 v1 · 2014-01-08 · math.CO · 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{PXKCULJSIR6QDNBE5LYUADSEVJ}

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	2026-05-18T00:15:31.369747Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7dd42a2d32447d01b424eaf1400e44aa57d9c36b1024860c4a309bcfd482ca24

Aliases

arxiv: 1401.1745 · arxiv_version: 1401.1745v1 · doi: 10.48550/arxiv.1401.1745 · pith_short_12: PXKCULJSIR6Q · pith_short_16: PXKCULJSIR6QDNBE · pith_short_8: PXKCULJS

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/PXKCULJSIR6QDNBE5LYUADSEVJ \
  | 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: 7dd42a2d32447d01b424eaf1400e44aa57d9c36b1024860c4a309bcfd482ca24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2184292ff924efa140eb7e691d1f9c9c5dd54e22b415cfeff3e1cc60ec8098f",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-01-08T16:30:21Z",
    "title_canon_sha256": "1ee2a25f8ea951e018ba0e5a6b7ad4d6edc0fec20224d74e14bfa47ebea42dc4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.1745",
    "kind": "arxiv",
    "version": 1
  }
}