Pith Number

pith:M5AN4RK5

pith:2012:M5AN4RK5ON4L6UNZ4KPPFD7YLJ

not attested not anchored not stored refs pending

Entanglement Witnesses and Measures for Bright Squeezed Vacuum

Falk T\"oppel, Magdalena Stobi\'nska, Maria V. Chekhova, Pavel Sekatski

arxiv:1205.1979 v2 · 2012-05-09 · 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{M5AN4RK5ON4L6UNZ4KPPFD7YLJ}

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	2026-05-18T03:40:16.160732Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6740de455d7378bf51b9e29ef28ff85a433b710f6b8ac5d38b3b15baa11b7dc0

Aliases

arxiv: 1205.1979 · arxiv_version: 1205.1979v2 · doi: 10.48550/arxiv.1205.1979 · pith_short_12: M5AN4RK5ON4L · pith_short_16: M5AN4RK5ON4L6UNZ · pith_short_8: M5AN4RK5

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/M5AN4RK5ON4L6UNZ4KPPFD7YLJ \
  | 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: 6740de455d7378bf51b9e29ef28ff85a433b710f6b8ac5d38b3b15baa11b7dc0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3eb343d9b7b77b74abcb318ec24f954dd7635a7a2ed7a9f98ebe01998213e542",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-05-09T13:30:19Z",
    "title_canon_sha256": "681ef5c654d3bed75aee57cec06200a9cd8aac4b39d4ada56fd488e86e1f43fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.1979",
    "kind": "arxiv",
    "version": 2
  }
}