Pith Number

pith:W2F2IN4I

pith:2009:W2F2IN4IO36BFFMQQA6GBCQELF

not attested not anchored not stored refs pending

Negativity as the Entanglement Measure to Probe the Kondo Regime in the Spin-Chain Kondo Model

Abolfazl Bayat, Pasquale Sodano, Sougato Bose

arxiv:0904.3341 v3 · 2009-04-21 · cond-mat.str-el · cond-mat.other · 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{W2F2IN4IO36BFFMQQA6GBCQELF}

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	2026-05-18T02:13:58.377968Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b68ba4378876fc129590803c608a0459677c78deb8e03224d5fcbe519f2c361f

Aliases

arxiv: 0904.3341 · arxiv_version: 0904.3341v3 · doi: 10.48550/arxiv.0904.3341 · pith_short_12: W2F2IN4IO36B · pith_short_16: W2F2IN4IO36BFFMQ · pith_short_8: W2F2IN4I

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/W2F2IN4IO36BFFMQQA6GBCQELF \
  | 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: b68ba4378876fc129590803c608a0459677c78deb8e03224d5fcbe519f2c361f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6133ea6467014096f4989b0c22f180a11556faf43d6bc9f2d3df3abbf49a57aa",
    "cross_cats_sorted": [
      "cond-mat.other",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2009-04-21T20:55:16Z",
    "title_canon_sha256": "261fe337527068be2c9dffaa1275043e2811d5557a1661f2187953743b32dedc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.3341",
    "kind": "arxiv",
    "version": 3
  }
}