Pith Number

pith:6WPTQ3F5

pith:2003:6WPTQ3F5674YI2HHM7ZV4ZXYYL

not attested not anchored not stored refs pending

Linear optics substituting scheme for multi-mode operations

D.-G. Welsch, J.Clausen, L. Knoell

arxiv:quant-ph/0303004 v1 · 2003-03-02 · 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{6WPTQ3F5674YI2HHM7ZV4ZXYYL}

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	2026-05-18T01:16:54.944586Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f59f386cbdf7f98468e767f35e66f8c2cdabf3b0feda779b22795c0282c873ca

Aliases

arxiv: quant-ph/0303004 · arxiv_version: quant-ph/0303004v1 · doi: 10.48550/arxiv.quant-ph/0303004 · pith_short_12: 6WPTQ3F5674Y · pith_short_16: 6WPTQ3F5674YI2HH · pith_short_8: 6WPTQ3F5

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/6WPTQ3F5674YI2HHM7ZV4ZXYYL \
  | 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: f59f386cbdf7f98468e767f35e66f8c2cdabf3b0feda779b22795c0282c873ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26920b0276fde085e85873e47d6c533de362c125d4274f3436d30714eeb7a3f7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2003-03-02T01:16:38Z",
    "title_canon_sha256": "4fe9aab252b8e2a5e8797c613340233db51f29c7175028678132b1c8602dce16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0303004",
    "kind": "arxiv",
    "version": 1
  }
}