Pith Number

pith:U5UJNLLJ

pith:2004:U5UJNLLJDLDLHPDCPAMX2G5DRC

not attested not anchored not stored refs pending

Single-photon two-qubit SWAP gate for entanglement manipulation

Franco N. C. Wong, Marco Fiorentino, Taehyun Kim

arxiv:quant-ph/0407136 v2 · 2004-07-16 · 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{U5UJNLLJDLDLHPDCPAMX2G5DRC}

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	2026-05-18T01:05:03.384654Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a76896ad691ac6b3bc6278197d1ba388b0841c44228c7b8f6890c19e88dd8fed

Aliases

arxiv: quant-ph/0407136 · arxiv_version: quant-ph/0407136v2 · doi: 10.48550/arxiv.quant-ph/0407136 · pith_short_12: U5UJNLLJDLDL · pith_short_16: U5UJNLLJDLDLHPDC · pith_short_8: U5UJNLLJ

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/U5UJNLLJDLDLHPDCPAMX2G5DRC \
  | 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: a76896ad691ac6b3bc6278197d1ba388b0841c44228c7b8f6890c19e88dd8fed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "835965cde8e2fb0c9363a55caa2a70ea7b8044895804e6d485e61f22236cf1dd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2004-07-16T22:26:01Z",
    "title_canon_sha256": "c937bbe8ca92d46ea8d00deb80073e4ba8b038237836d65c06042479a7daf741"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0407136",
    "kind": "arxiv",
    "version": 2
  }
}