Pith Number

pith:7LO6ANWR

pith:2012:7LO6ANWRVWYA6LENROJ2V4PIBJ

not attested not anchored not stored refs pending

Optical vortex produced by Single Photon Subtraction from two mode squeezed state Produces Maximum Entanglement

Abir Bandyopadhyay, Anindya Banerji, R. P. Singh

arxiv:1210.1930 v3 · 2012-10-06 · quant-ph · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7LO6ANWRVWYA6LENROJ2V4PIBJ}

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	2026-05-18T03:41:19.883593Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fadde036d1adb00f2c8d8b93aaf1e80a4cce7a20bc511d396ee98387157d55a0

Aliases

arxiv: 1210.1930 · arxiv_version: 1210.1930v3 · doi: 10.48550/arxiv.1210.1930 · pith_short_12: 7LO6ANWRVWYA · pith_short_16: 7LO6ANWRVWYA6LEN · pith_short_8: 7LO6ANWR

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/7LO6ANWRVWYA6LENROJ2V4PIBJ \
  | 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: fadde036d1adb00f2c8d8b93aaf1e80a4cce7a20bc511d396ee98387157d55a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "247079f5ab01a81c672dc92c97235da94912fc53ade253d9ac3afa8eb543d9ac",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-10-06T08:26:47Z",
    "title_canon_sha256": "fa668e65dfc8df41b5b3443682f89be3ae2736b7692a8154efa2876c956ba341"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.1930",
    "kind": "arxiv",
    "version": 3
  }
}