Pith Number

pith:FHBPEOJG

pith:2009:FHBPEOJGOKVQ5FVSO2CO6ZQPJP

not attested not anchored not stored refs pending

Active polarization control for quantum communication in long-distance optical fibers with shared telecom traffic

G. B. Xavier, G. P. Temporao, G. Vilela de Faria, J. P. von der Weid, T. Ferreira da Silva

arxiv:0912.4433 v2 · 2009-12-22 · 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{FHBPEOJGOKVQ5FVSO2CO6ZQPJP}

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	2026-05-18T03:34:46.675728Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29c2f2392672ab0e96b27684ef660f4bcc37da959ecfe228f5bce6a95de773f6

Aliases

arxiv: 0912.4433 · arxiv_version: 0912.4433v2 · doi: 10.48550/arxiv.0912.4433 · pith_short_12: FHBPEOJGOKVQ · pith_short_16: FHBPEOJGOKVQ5FVS · pith_short_8: FHBPEOJG

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/FHBPEOJGOKVQ5FVSO2CO6ZQPJP \
  | 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: 29c2f2392672ab0e96b27684ef660f4bcc37da959ecfe228f5bce6a95de773f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6161794803ed5db25383b4e2158196038d6818deb48c4b6b3146f1cf8ee3375d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-12-22T16:03:59Z",
    "title_canon_sha256": "a354d5b5ba3f247f75811a857e2f08d2b53b2fd25aaf07039275e26da26e8b44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.4433",
    "kind": "arxiv",
    "version": 2
  }
}