Pith Number

pith:ST733LBG

pith:2011:ST733LBGWCVA6R2VLWL63KVF67

not attested not anchored not stored refs pending

On Approaching the Ultimate Limits of Photon-Efficient and Bandwidth-Efficient Optical Communication

Baris I. Erkmen, Bruce Moision, Kevin M. Birnbaum, Sam Dolinar

arxiv:1104.2643 v2 · 2011-04-13 · 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{ST733LBGWCVA6R2VLWL63KVF67}

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	2026-05-18T02:22:09.281226Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94ffbdac26b0aa0f47555d97edaaa5f7c23bc4cd7d2cab79e5541ffe5f46ba32

Aliases

arxiv: 1104.2643 · arxiv_version: 1104.2643v2 · doi: 10.48550/arxiv.1104.2643 · pith_short_12: ST733LBGWCVA · pith_short_16: ST733LBGWCVA6R2V · pith_short_8: ST733LBG

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/ST733LBGWCVA6R2VLWL63KVF67 \
  | 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: 94ffbdac26b0aa0f47555d97edaaa5f7c23bc4cd7d2cab79e5541ffe5f46ba32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41508c61aa56a34d963b45f2b51e48c4e63893aacb5ced097deef99ea293bc43",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-04-13T23:18:03Z",
    "title_canon_sha256": "4cf74b59dd705f6c3cd145cbdbc4810ea581f6b4aed43b30741bc4d905ca194f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2643",
    "kind": "arxiv",
    "version": 2
  }
}