Pith Number

pith:MAY5ZOQO

pith:2007:MAY5ZOQO2TBUJZZKV7PEN5E63H

not attested not anchored not stored refs pending

Operator space entanglement entropy in transverse Ising chain

Iztok Pizorn, Tomaz Prosen

arxiv:0706.2480 v3 · 2007-06-17 · 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{MAY5ZOQO2TBUJZZKV7PEN5E63H}

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	2026-07-04T15:38:56.430574Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6031dcba0ed4c344e72aafde46f49ed9fd2e3473abca5969351c2cf33a913a23

Aliases

arxiv: 0706.2480 · arxiv_version: 0706.2480v3 · doi: 10.48550/arxiv.0706.2480 · pith_short_12: MAY5ZOQO2TBU · pith_short_16: MAY5ZOQO2TBUJZZK · pith_short_8: MAY5ZOQO

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/MAY5ZOQO2TBUJZZKV7PEN5E63H \
  | 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: 6031dcba0ed4c344e72aafde46f49ed9fd2e3473abca5969351c2cf33a913a23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a30e84fbdb96976867daf15f69330f5bf11e3f246926d55a167eac750a5a57c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2007-06-17T16:43:41Z",
    "title_canon_sha256": "69b709002d37a4eb618dc59ef3443a1665f25b18c4283aaaecf088b0b4fa0a25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0706.2480",
    "kind": "arxiv",
    "version": 3
  }
}