Pith Number

pith:BT4UWLIU

pith:2016:BT4UWLIUEQCPDPWI5DVQT6AL2Y

not attested not anchored not stored refs pending

Pretty Good State Transfer in Qubit Chains - The Heisenberg Hamiltonian

Chris Godsil, Gabriel Coutinho, Leonardo Banchi, Simone Severini

arxiv:1608.04722 v3 · 2016-08-16 · quant-ph · 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{BT4UWLIUEQCPDPWI5DVQT6AL2Y}

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	2026-05-18T00:12:46.046642Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0cf94b2d142404f1bec8e8eb09f80bd60a0bedd200710d8bb2ebd51b9dca41d3

Aliases

arxiv: 1608.04722 · arxiv_version: 1608.04722v3 · doi: 10.48550/arxiv.1608.04722 · pith_short_12: BT4UWLIUEQCP · pith_short_16: BT4UWLIUEQCPDPWI · pith_short_8: BT4UWLIU

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/BT4UWLIUEQCPDPWI5DVQT6AL2Y \
  | 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: 0cf94b2d142404f1bec8e8eb09f80bd60a0bedd200710d8bb2ebd51b9dca41d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "743cb4705dd02f57a1be494e07368fda52f5236d10e26bb2313e0f9cd52bfc68",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2016-08-16T19:38:37Z",
    "title_canon_sha256": "5ab825f4aaff0007abe23fa8cbce869ef87e354adb337f2f5e5331da6d0d6a2d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.04722",
    "kind": "arxiv",
    "version": 3
  }
}