Pith Number

pith:2F6WX6J2

pith:2009:2F6WX6J2VQADTAG244H4HWLP2R

not attested not anchored not stored refs pending

Discrimination of Optical Coherent States using a Photon Number Resolving Detector

Christoffer Wittmann, Gerd Leuchs, Ulrik L. Andersen

arxiv:0905.2496 v3 · 2009-05-15 · 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{2F6WX6J2VQADTAG244H4HWLP2R}

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	2026-05-18T04:39:39.254165Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d17d6bf93aac003980dae70fc3d96fd47fc5cc220473fbca5a7a1644559d4cc8

Aliases

arxiv: 0905.2496 · arxiv_version: 0905.2496v3 · doi: 10.48550/arxiv.0905.2496 · pith_short_12: 2F6WX6J2VQAD · pith_short_16: 2F6WX6J2VQADTAG2 · pith_short_8: 2F6WX6J2

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/2F6WX6J2VQADTAG244H4HWLP2R \
  | 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: d17d6bf93aac003980dae70fc3d96fd47fc5cc220473fbca5a7a1644559d4cc8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ff1c09aee21128ef747741acc6ccec6df873db64f68c27a530ca4544f6ae273",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-05-15T09:42:00Z",
    "title_canon_sha256": "98e4b025fbf42aadfb1a91f54b10a902a16531fd47231fee578ea426bb4518e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.2496",
    "kind": "arxiv",
    "version": 3
  }
}