Pith Number

pith:N5YAB3I3

pith:2014:N5YAB3I3DWQUEYSPSBPXBA242R

not attested not anchored not stored refs pending

No Laplacian Perfect State Transfer in Trees

Gabriel Coutinho, Henry Liu

arxiv:1408.2935 v1 · 2014-08-13 · 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{N5YAB3I3DWQUEYSPSBPXBA242R}

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	2026-05-18T00:15:31.351795Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f7000ed1b1da142624f905f70835cd46c41e32faf477ebc4672c7e8d180a836

Aliases

arxiv: 1408.2935 · arxiv_version: 1408.2935v1 · doi: 10.48550/arxiv.1408.2935 · pith_short_12: N5YAB3I3DWQU · pith_short_16: N5YAB3I3DWQUEYSP · pith_short_8: N5YAB3I3

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/N5YAB3I3DWQUEYSPSBPXBA242R \
  | 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: 6f7000ed1b1da142624f905f70835cd46c41e32faf477ebc4672c7e8d180a836

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c043276068dda2ca204011751e7d2ad8dfd22c915b96976a87e591eabd8adbf",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-08-13T08:01:12Z",
    "title_canon_sha256": "9b8d4a1906bd38e204fb0d1173faa609ab2484732a4093f8aba7b4d71337af79"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.2935",
    "kind": "arxiv",
    "version": 1
  }
}