Pith Number

pith:WKYJYLWJ

pith:2009:WKYJYLWJMLVHCT66POB5WOHVL4

not attested not anchored not stored refs pending

Spatial state Stokes-operator squeezing and entanglement for optical beams

M. T. L. Hsu, P. K. Lam, W. P. Bowen

arxiv:0901.4813 v1 · 2009-01-30 · 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{WKYJYLWJMLVHCT66POB5WOHVL4}

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	2026-05-18T02:14:55.044242Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2b09c2ec962ea714fde7b83db38f55f1d242c679545ff55219577118f414b2a

Aliases

arxiv: 0901.4813 · arxiv_version: 0901.4813v1 · doi: 10.48550/arxiv.0901.4813 · pith_short_12: WKYJYLWJMLVH · pith_short_16: WKYJYLWJMLVHCT66 · pith_short_8: WKYJYLWJ

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/WKYJYLWJMLVHCT66POB5WOHVL4 \
  | 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: b2b09c2ec962ea714fde7b83db38f55f1d242c679545ff55219577118f414b2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ce3e4420e0ef5f4dbfe3706582488915080b522dfc0dd6575378f920178a6a5",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-01-30T01:41:21Z",
    "title_canon_sha256": "f924521d2ff5b14b7ee9625670ae712c4ff1fc744723fac7ad1b043081293f6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.4813",
    "kind": "arxiv",
    "version": 1
  }
}