Pith Number

pith:TN4QVW2R

pith:2012:TN4QVW2RZ3VVTRU5MQFR6HDMER

not attested not anchored not stored refs pending

Quantum correlations in different density matrix representations of spin-1/2 open chain

A. I. Zenchuk, E. B. Fel'dman

arxiv:1205.2942 v1 · 2012-05-14 · 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{TN4QVW2RZ3VVTRU5MQFR6HDMER}

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	2026-05-18T01:57:32.713914Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b790adb51ceeb59c69d640b1f1c6c245dc0374f2d12164e26878cd1e33e45a8

Aliases

arxiv: 1205.2942 · arxiv_version: 1205.2942v1 · doi: 10.48550/arxiv.1205.2942 · pith_short_12: TN4QVW2RZ3VV · pith_short_16: TN4QVW2RZ3VVTRU5 · pith_short_8: TN4QVW2R

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/TN4QVW2RZ3VVTRU5MQFR6HDMER \
  | 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: 9b790adb51ceeb59c69d640b1f1c6c245dc0374f2d12164e26878cd1e33e45a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15ba9ae317ace886ed85f1f911de74929d0c3914569e4868495a05cbc2c3df8b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-05-14T05:57:47Z",
    "title_canon_sha256": "0cc9fe991dd2ce4971d6ef44b55e43c3e2e31e1b46c702a5556b0455e6091d84"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.2942",
    "kind": "arxiv",
    "version": 1
  }
}