Pith Number

pith:UZDAYFSC

pith:2012:UZDAYFSCKYFVEKJPBYP4VYBRLE

not attested not anchored not stored refs pending

Entanglement witnesses arising from Choi type positive linear maps

Kil-Chan Ha, Seung-Hyeok Kye

arxiv:1205.2921 v1 · 2012-05-14 · quant-ph · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UZDAYFSCKYFVEKJPBYP4VYBRLE}

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	2026-05-18T01:57:32.737225Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6460c1642560b52292f0e1fcae031592ae13d496d980ba0ecaedfae6a501061

Aliases

arxiv: 1205.2921 · arxiv_version: 1205.2921v1 · doi: 10.48550/arxiv.1205.2921 · pith_short_12: UZDAYFSCKYFV · pith_short_16: UZDAYFSCKYFVEKJP · pith_short_8: UZDAYFSC

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/UZDAYFSCKYFVEKJPBYP4VYBRLE \
  | 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: a6460c1642560b52292f0e1fcae031592ae13d496d980ba0ecaedfae6a501061

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02d36112754981f979c53ed16c6e9f5d02b375c47b61e27d8dc247963abb3a06",
    "cross_cats_sorted": [
      "math.OA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-05-14T00:57:01Z",
    "title_canon_sha256": "5462c30f2624f7c3aec923ba614b7489675b3dd7b3ee111a5da1539ecce3e6e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.2921",
    "kind": "arxiv",
    "version": 1
  }
}