Pith Number

pith:EHA6N7XH

pith:2010:EHA6N7XHG4TBNTDRUWXMEQGCPR

not attested not anchored not stored refs pending

Entanglement in a Time-Dependent Coupled XY Spin Chain in an External Magnetic Field

Bedoor Alkurtass, Gehad Sadiek, Omar Aldossary

arxiv:1009.0648 v3 · 2010-09-01 · 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{EHA6N7XHG4TBNTDRUWXMEQGCPR}

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	2026-05-18T04:34:08.704980Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21c1e6fee7372616cc71a5aec240c27c73692d131b44a96bac65cdbcb27eb6ef

Aliases

arxiv: 1009.0648 · arxiv_version: 1009.0648v3 · doi: 10.48550/arxiv.1009.0648 · pith_short_12: EHA6N7XHG4TB · pith_short_16: EHA6N7XHG4TBNTDR · pith_short_8: EHA6N7XH

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/EHA6N7XHG4TBNTDRUWXMEQGCPR \
  | 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: 21c1e6fee7372616cc71a5aec240c27c73692d131b44a96bac65cdbcb27eb6ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf655793cb9708331cbe74c46b0d234ee1ddac5de42024c2614ca042bef80264",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-09-01T18:23:11Z",
    "title_canon_sha256": "1a700a7928c7e61e1ec15c9c96f9fe421ce9ac1341ea19d589204dd550c45788"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.0648",
    "kind": "arxiv",
    "version": 3
  }
}