Pith Number

pith:6O2GOY6Z

pith:2010:6O2GOY6ZJ7W2QD7STO3OHOBMJJ

not attested not anchored not stored refs pending

Universal Squash Model For Optical Communications Using Linear Optics And Threshold Detectors

Chi-Hang Fred Fung, H. F. Chau, Hoi-Kwong Lo

arxiv:1011.2982 v1 · 2010-11-12 · 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{6O2GOY6ZJ7W2QD7STO3OHOBMJJ}

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	2026-05-18T04:14:07.993244Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3b46763d94feda80ff29bb6e3b82c4a5ef0dd032db47fda50c09087a512932e

Aliases

arxiv: 1011.2982 · arxiv_version: 1011.2982v1 · doi: 10.48550/arxiv.1011.2982 · pith_short_12: 6O2GOY6ZJ7W2 · pith_short_16: 6O2GOY6ZJ7W2QD7S · pith_short_8: 6O2GOY6Z

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/6O2GOY6ZJ7W2QD7STO3OHOBMJJ \
  | 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: f3b46763d94feda80ff29bb6e3b82c4a5ef0dd032db47fda50c09087a512932e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d9e4069fd880af4ec7ca15e79990a12e24615654b718fa0290f73fce8f1f4753",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-11-12T16:52:50Z",
    "title_canon_sha256": "87abd7293ce89449d92a077795331f7865d1ef18063a591c99a358823151092d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.2982",
    "kind": "arxiv",
    "version": 1
  }
}