Pith Number

pith:E4W434IY

pith:2006:E4W434IYAWSDF63C2PBFOAF6CD

not attested not anchored not stored refs pending

Coherent Communication with Continuous Quantum Variables

Hari Krovi, Mark M. Wilde, Todd A. Brun

arxiv:quant-ph/0612170 v2 · 2006-12-20 · 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{E4W434IYAWSDF63C2PBFOAF6CD}

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	2026-05-18T04:08:45.656081Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

272dcdf11805a432fb62d3c25700be10cc54a97344b5a929fc183fd11bbd30bb

Aliases

arxiv: quant-ph/0612170 · arxiv_version: quant-ph/0612170v2 · doi: 10.48550/arxiv.quant-ph/0612170 · pith_short_12: E4W434IYAWSD · pith_short_16: E4W434IYAWSDF63C · pith_short_8: E4W434IY

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/E4W434IYAWSDF63C2PBFOAF6CD \
  | 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: 272dcdf11805a432fb62d3c25700be10cc54a97344b5a929fc183fd11bbd30bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4cc714f57de5b8422250bdfb94404cf35cceebc067670bbb72f008c24328c317",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2006-12-20T07:36:41Z",
    "title_canon_sha256": "4149c89b868a0e2483379055df8d5644afd5059616e7ff122fb09b70f798e047"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0612170",
    "kind": "arxiv",
    "version": 2
  }
}