Pith Number

pith:I2BSPF33

pith:2015:I2BSPF332L6CJNY47TMWPVZUEB

not attested not anchored not stored refs pending

Self-referenced continuous-variable quantum key distribution protocol

Constantin Brif, Daniel B. S. Soh, Junji Urayama, Mohan Sarovar, Norbert L\"utkenhaus, Patrick J. Coles, Ryan M. Camacho

arxiv:1503.04763 v2 · 2015-03-16 · 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{I2BSPF332L6CJNY47TMWPVZUEB}

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	2026-05-18T01:28:34.511031Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

468327977bd2fc24b71cfcd967d73420634b2207f5939e4266788d68f0a7dd5b

Aliases

arxiv: 1503.04763 · arxiv_version: 1503.04763v2 · doi: 10.48550/arxiv.1503.04763 · pith_short_12: I2BSPF332L6C · pith_short_16: I2BSPF332L6CJNY4 · pith_short_8: I2BSPF33

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/I2BSPF332L6CJNY47TMWPVZUEB \
  | 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: 468327977bd2fc24b71cfcd967d73420634b2207f5939e4266788d68f0a7dd5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1e0cf09ba11863ad13246d5fb966ce6c4991716f50d29551f59cb7a8f33ca0c",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-03-16T18:47:25Z",
    "title_canon_sha256": "009b9ce906f54d2b6375a0f19eb28f9ecb1e83eee7c12f1059b81f1a9ec42479"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.04763",
    "kind": "arxiv",
    "version": 2
  }
}