Pith Number

pith:FLDKCODN

pith:2004:FLDKCODNEWUBYQUJ6MF7WU6ZIL

not attested not anchored not stored refs pending

Permanents in linear optical networks

Stefan Scheel

arxiv:quant-ph/0406127 v1 · 2004-06-18 · 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{FLDKCODNEWUBYQUJ6MF7WU6ZIL}

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.

Cited by

1 paper in Pith

Mitigating the barren plateau problem in linear optics

Receipt and verification

First computed	2026-05-18T02:52:49.803238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ac6a1386d25a81c4289f30bfb53d942c43dc2a8f4e112ab7dc9eadb472afc8d

Aliases

arxiv: quant-ph/0406127 · arxiv_version: quant-ph/0406127v1 · doi: 10.48550/arxiv.quant-ph/0406127 · pith_short_12: FLDKCODNEWUB · pith_short_16: FLDKCODNEWUBYQUJ · pith_short_8: FLDKCODN

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/FLDKCODNEWUBYQUJ6MF7WU6ZIL \
  | 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: 2ac6a1386d25a81c4289f30bfb53d942c43dc2a8f4e112ab7dc9eadb472afc8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76605342c6aedd111387e2e435ccea67ad69f176094317c3298f270f2757b8c0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2004-06-18T09:32:19Z",
    "title_canon_sha256": "e8cba512b3d3f0ef5a67cc21e9ecd51995c43777ad9f80db7f7c8eaa48b7be57"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0406127",
    "kind": "arxiv",
    "version": 1
  }
}