Pith Number

pith:Z6YFUKO2

pith:2009:Z6YFUKO22RD7MOC5P2QERRGSX7

not attested not anchored not stored refs pending

Modal, Spectral, and Polarization Entanglement in Guided-Wave Parametric Down-Conversion

Bahaa E. A. Saleh, Malvin Carl Teich, Mohammed F. Saleh

arxiv:0904.2923 v2 · 2009-04-19 · 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{Z6YFUKO22RD7MOC5P2QERRGSX7}

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	2026-05-18T02:24:56.020708Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfb05a29dad447f6385d7ea048c4d2bfc7cfd09cbddd4594995a71d8f99fcfd3

Aliases

arxiv: 0904.2923 · arxiv_version: 0904.2923v2 · doi: 10.48550/arxiv.0904.2923 · pith_short_12: Z6YFUKO22RD7 · pith_short_16: Z6YFUKO22RD7MOC5 · pith_short_8: Z6YFUKO2

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/Z6YFUKO22RD7MOC5P2QERRGSX7 \
  | 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: cfb05a29dad447f6385d7ea048c4d2bfc7cfd09cbddd4594995a71d8f99fcfd3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "703acdf5805d1e7a06d21d7c963d7f7e149601fe1a539e5f5e54e01448027d5c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-04-19T16:15:59Z",
    "title_canon_sha256": "19d37a22f6af73c387eaf59891d02ca170f631b679794f126d49ce92dbd30a9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2923",
    "kind": "arxiv",
    "version": 2
  }
}