Pith Number

pith:GPWPLXA5

pith:2011:GPWPLXA5CDG6BK3A7R26YZZNCX

not attested not anchored not stored refs pending

Spin chains for robust state transfer: Modified boundary couplings vs. completely engineered chains

Analia Zwick, Gonzalo A. Alvarez, Joachim Stolze, Omar Osenda

arxiv:1111.2238 v2 · 2011-11-09 · 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{GPWPLXA5CDG6BK3A7R26YZZNCX}

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	2026-05-18T04:04:06.436231Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33ecf5dc1d10cde0ab60fc75ec672d15e7a3f4fcd29dcf3e0b240266d20cdad1

Aliases

arxiv: 1111.2238 · arxiv_version: 1111.2238v2 · doi: 10.48550/arxiv.1111.2238 · pith_short_12: GPWPLXA5CDG6 · pith_short_16: GPWPLXA5CDG6BK3A · pith_short_8: GPWPLXA5

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/GPWPLXA5CDG6BK3A7R26YZZNCX \
  | 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: 33ecf5dc1d10cde0ab60fc75ec672d15e7a3f4fcd29dcf3e0b240266d20cdad1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a911e2b749e3ee5360f014b480d10be67d2e0e4bdd875241f8665219b37acd2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-11-09T15:27:07Z",
    "title_canon_sha256": "dd24b4e3dffbc83532f39f9f77cdeb15f189988336dee30c63d22e29f91669cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.2238",
    "kind": "arxiv",
    "version": 2
  }
}