Pith Number

pith:M7WTXP4R

pith:2007:M7WTXP4R4Z5BNYUXKSBSML4QGZ

not attested not anchored not stored refs pending

Experimentally friendly geometrical criteria for entanglement

C. Brukner, M. Zukowski, P. Badziag, T. Paterek, W. Laskowski

arxiv:0711.4282 v2 · 2007-11-27 · 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{M7WTXP4R4Z5BNYUXKSBSML4QGZ}

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	2026-05-18T02:16:09.061060Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67ed3bbf91e67a16e2975483262f903672aaac2a9212e1b1ebffcdf7a62cfdef

Aliases

arxiv: 0711.4282 · arxiv_version: 0711.4282v2 · doi: 10.48550/arxiv.0711.4282 · pith_short_12: M7WTXP4R4Z5B · pith_short_16: M7WTXP4R4Z5BNYUX · pith_short_8: M7WTXP4R

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/M7WTXP4R4Z5BNYUXKSBSML4QGZ \
  | 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: 67ed3bbf91e67a16e2975483262f903672aaac2a9212e1b1ebffcdf7a62cfdef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "946fd5825806621c7dbd8abed8028434c86a8aef5d7aafbc9586253b20c7b416",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2007-11-27T18:51:55Z",
    "title_canon_sha256": "795179c5588cadaf361dc21eb4c8a63f9ccccd04bea8d01908d8790461caf3a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0711.4282",
    "kind": "arxiv",
    "version": 2
  }
}