Pith Number

pith:K4HYVBFR

pith:2015:K4HYVBFR5GBXOQNI6RJ7BDEOYL

not attested not anchored not stored refs pending

Practical Entanglement Estimation for Spin-System Quantum Simulators

M.B. Plenio, M. Cramer, O. Marty

arxiv:1504.03572 v1 · 2015-04-14 · quant-ph · cond-mat.mes-hall · cond-mat.quant-gas · cond-mat.supr-con

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K4HYVBFR5GBXOQNI6RJ7BDEOYL}

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	2026-05-18T01:18:47.309823Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

570f8a84b1e9837741a8f453f08c8ec2e43945a2c499aed64799b3d98ede7c11

Aliases

arxiv: 1504.03572 · arxiv_version: 1504.03572v1 · doi: 10.48550/arxiv.1504.03572 · pith_short_12: K4HYVBFR5GBX · pith_short_16: K4HYVBFR5GBXOQNI · pith_short_8: K4HYVBFR

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/K4HYVBFR5GBXOQNI6RJ7BDEOYL \
  | 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: 570f8a84b1e9837741a8f453f08c8ec2e43945a2c499aed64799b3d98ede7c11

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29646c81eb6855f86b449dc13d9e4dae217225d579115d998b92ebfdf12ea402",
    "cross_cats_sorted": [
      "cond-mat.mes-hall",
      "cond-mat.quant-gas",
      "cond-mat.supr-con"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-04-14T14:54:07Z",
    "title_canon_sha256": "797ea1cde5c85451b771fdf42ff820faf024888fde0403183928bb98c63969c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03572",
    "kind": "arxiv",
    "version": 1
  }
}