Pith Number

pith:EUAZGFPX

pith:2013:EUAZGFPXMMTRJ77TLLAZK2P6SW

not attested not anchored not stored refs pending

Extremal entanglement witnesses

(2) Department of Physics, Andreas Hauge (1), Jan Myrheim (1), Leif Ove Hansen (1), Norwegian University of Science, Per {\O}yvind Sollid (2) ((1) Department of Physics, Technology, University of Oslo)

arxiv:1305.2385 v2 · 2013-05-10 · 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{EUAZGFPXMMTRJ77TLLAZK2P6SW}

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	2026-05-18T01:27:46.830956Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25019315f7632714fff35ac19569fe958f7e466c1fa36d8cdf67dcab48f32349

Aliases

arxiv: 1305.2385 · arxiv_version: 1305.2385v2 · doi: 10.48550/arxiv.1305.2385 · pith_short_12: EUAZGFPXMMTR · pith_short_16: EUAZGFPXMMTRJ77T · pith_short_8: EUAZGFPX

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/EUAZGFPXMMTRJ77TLLAZK2P6SW \
  | 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: 25019315f7632714fff35ac19569fe958f7e466c1fa36d8cdf67dcab48f32349

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe01dec3172f661bdc2bacc662ce869bac55ca52c97554adde712a1089a67994",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-05-10T16:44:33Z",
    "title_canon_sha256": "8bcbfce88a18a4fbe82d2d033b3475161702ed2bab2e476af2c3ef57021b5427"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.2385",
    "kind": "arxiv",
    "version": 2
  }
}