Pith Number

pith:QVXC4HBL

pith:2018:QVXC4HBLK3OKI5MX2PJFO4GIOR

not attested not anchored not stored refs pending

Completely Positive Maps for Reduced States of Indistinguishable Particles

Diego L. Braga Ferreira, Fernando Iemini, Leonardo da Silva Souza, Reinaldo O. Vianna, Tiago Debarba

arxiv:1807.07175 v2 · 2018-07-18 · 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{QVXC4HBLK3OKI5MX2PJFO4GIOR}

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	2026-05-17T23:59:01.598140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

856e2e1c2b56dca47597d3d25770c8747942f9c1456402727c655b27b61c5d77

Aliases

arxiv: 1807.07175 · arxiv_version: 1807.07175v2 · doi: 10.48550/arxiv.1807.07175 · pith_short_12: QVXC4HBLK3OK · pith_short_16: QVXC4HBLK3OKI5MX · pith_short_8: QVXC4HBL

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/QVXC4HBLK3OKI5MX2PJFO4GIOR \
  | 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: 856e2e1c2b56dca47597d3d25770c8747942f9c1456402727c655b27b61c5d77

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55e5ea41ecd2af7b62391472b4da3130c387f4741527a03f7b6e191f8c20b45d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-07-18T22:24:15Z",
    "title_canon_sha256": "3d3da186cc7e3fea893c1efef7c637adc453778691dbf4972a5e0c517a464694"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.07175",
    "kind": "arxiv",
    "version": 2
  }
}