Pith Number

pith:M7YHDY57

pith:2015:M7YHDY57OIZN4S7MAQZGGUZSFH

not attested not anchored not stored refs pending

Using non-positive maps to characterize entanglement witnesses

Adam Rutkowski, Marek Mozrzymas, Micha{\l} Studzi\'nski

arxiv:1503.00528 v4 · 2015-03-02 · 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{M7YHDY57OIZN4S7MAQZGGUZSFH}

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	2026-05-18T01:32:10.493171Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67f071e3bf7232de4bec043263533229d03ef13785a7b8b5b3da0eb6a0be6893

Aliases

arxiv: 1503.00528 · arxiv_version: 1503.00528v4 · doi: 10.48550/arxiv.1503.00528 · pith_short_12: M7YHDY57OIZN · pith_short_16: M7YHDY57OIZN4S7M · pith_short_8: M7YHDY57

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/M7YHDY57OIZN4S7MAQZGGUZSFH \
  | 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: 67f071e3bf7232de4bec043263533229d03ef13785a7b8b5b3da0eb6a0be6893

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83f2580116a94357b16114df4404ec7532069a33e832d5ee31e1418e4b362627",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-03-02T14:01:10Z",
    "title_canon_sha256": "ead4f3d994cf033186a4bc2b026c697116feb79c37b747d3c2a4d14c5f7cfa3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.00528",
    "kind": "arxiv",
    "version": 4
  }
}