Pith Number

pith:QD6DEURF

pith:2002:QD6DEURFJ6F5QLPSVBKLVVR7TZ

not attested not anchored not stored refs pending

Entanglement Properties of the Harmonic Chain

J. Eisert, K. Audenaert, M.B. Plenio, R.F. Werner

arxiv:quant-ph/0205025 v2 · 2002-05-06 · quant-ph · cond-mat

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QD6DEURFJ6F5QLPSVBKLVVR7TZ}

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	2026-07-04T16:36:03.833922Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80fc3252254f8bd82df2a854bad63f9e74cbb2bccecb527bdac8a5fb4697d8ba

Aliases

arxiv: quant-ph/0205025 · arxiv_version: quant-ph/0205025v2 · doi: 10.48550/arxiv.quant-ph/0205025 · pith_short_12: QD6DEURFJ6F5 · pith_short_16: QD6DEURFJ6F5QLPS · pith_short_8: QD6DEURF

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/QD6DEURFJ6F5QLPSVBKLVVR7TZ \
  | 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: 80fc3252254f8bd82df2a854bad63f9e74cbb2bccecb527bdac8a5fb4697d8ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b82b2f039b09164d372e0dd51398f3f8a2beae70d9da6de3cb2d7d720bbbce30",
    "cross_cats_sorted": [
      "cond-mat"
    ],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2002-05-06T15:07:07Z",
    "title_canon_sha256": "002bd02fc32f0d9308a5beb106fce49b1c96391da3b6be6864cc06b63635f512"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0205025",
    "kind": "arxiv",
    "version": 2
  }
}