Pith Number

pith:U4FTLVH4

pith:2003:U4FTLVH4NGCNCDPXMR725DMB5V

not attested not anchored not stored refs pending

Entanglement in quantum computers described by the XXZ model with defects

L. F. Santos

arxiv:quant-ph/0303157 v1 · 2003-03-26 · 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{U4FTLVH4NGCNCDPXMR725DMB5V}

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	2026-05-18T01:05:04.059443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a70b35d4fc6984d10df7647fae8d81ed41eefdb7f8082ff0b19a698799cdfa83

Aliases

arxiv: quant-ph/0303157 · arxiv_version: quant-ph/0303157v1 · doi: 10.48550/arxiv.quant-ph/0303157 · pith_short_12: U4FTLVH4NGCN · pith_short_16: U4FTLVH4NGCNCDPX · pith_short_8: U4FTLVH4

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/U4FTLVH4NGCNCDPXMR725DMB5V \
  | 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: a70b35d4fc6984d10df7647fae8d81ed41eefdb7f8082ff0b19a698799cdfa83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f261863678b929ff36e8d13576dacbfdb1e5b0f70fb41e0121e555dbb2e8ea7b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2003-03-26T00:27:52Z",
    "title_canon_sha256": "73af48de709ba8142d6ccf389b0424b79c6bcb4444dfb3ce76406dd6e7d5b251"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0303157",
    "kind": "arxiv",
    "version": 1
  }
}