Pith Number

pith:AL7KI5XO

pith:2009:AL7KI5XODJDTNHMIBE3CEZZKBS

not attested not anchored not stored refs pending

Confidential direct communications: a quantum approach using continuous variables

Samuel L. Braunstein, Seth Lloyd, Stefano Mancini, Stefano Pirandola

arxiv:0903.0750 v1 · 2009-03-04 · 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{AL7KI5XODJDTNHMIBE3CEZZKBS}

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	2026-05-18T04:37:11.372596Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02fea476ee1a47369d88093622672a0c91c8b2c730a206f6671b792dead82975

Aliases

arxiv: 0903.0750 · arxiv_version: 0903.0750v1 · doi: 10.48550/arxiv.0903.0750 · pith_short_12: AL7KI5XODJDT · pith_short_16: AL7KI5XODJDTNHMI · pith_short_8: AL7KI5XO

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/AL7KI5XODJDTNHMIBE3CEZZKBS \
  | 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: 02fea476ee1a47369d88093622672a0c91c8b2c730a206f6671b792dead82975

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2d025a6c18bf9959f458495a5343627edb7549a35782e7c52b2b460764db8c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-03-04T17:36:04Z",
    "title_canon_sha256": "ada915633097a767cc0adb821e4d39c6f528d2808871843d88a6b2c71227cd97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.0750",
    "kind": "arxiv",
    "version": 1
  }
}