Pith Number

pith:WTBSJOWX

pith:2008:WTBSJOWXIMV4BHQZFLDVMRF6S7

not attested not anchored not stored refs pending

Perfect excitation of a matter qubit by a single photon in free space

Gerd Leuchs, Gernot Alber, Magdalena Stobi\'nska

arxiv:0808.1666 v2 · 2008-08-12 · 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{WTBSJOWXIMV4BHQZFLDVMRF6S7}

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	2026-07-04T17:27:48.933074Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4c324bad7432bc09e192ac75644be97cb79971a4e5c602e85618cc015bb92d1

Aliases

arxiv: 0808.1666 · arxiv_version: 0808.1666v2 · doi: 10.48550/arxiv.0808.1666 · pith_short_12: WTBSJOWXIMV4 · pith_short_16: WTBSJOWXIMV4BHQZ · pith_short_8: WTBSJOWX

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/WTBSJOWXIMV4BHQZFLDVMRF6S7 \
  | 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: b4c324bad7432bc09e192ac75644be97cb79971a4e5c602e85618cc015bb92d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c00654a8d0bd265d26ea084358860338bbfe6f487428ad18c4a012b59b0983a0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2008-08-12T13:49:59Z",
    "title_canon_sha256": "6eaf6d05ae2d12f850f1906ec0280f6fee82e094e0e918c7e39c9a0ef922fbe5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0808.1666",
    "kind": "arxiv",
    "version": 2
  }
}