Pith Number

pith:HXWAIPUD

pith:1999:HXWAIPUDUENS2NRCNUGGN5UWN3

not attested not anchored not stored refs pending

Conditional quantum state engineering at beam splitter arrays

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

arxiv:quant-ph/9905085 v1 · 1999-05-25 · 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{HXWAIPUDUENS2NRCNUGGN5UWN3}

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	2026-05-18T01:14:46.019439Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3dec043e83a11b2d36226d0c66f6966ee59cc4e2ae8762aad89db1a5081a51fa

Aliases

arxiv: quant-ph/9905085 · arxiv_version: quant-ph/9905085v1 · doi: 10.48550/arxiv.quant-ph/9905085 · pith_short_12: HXWAIPUDUENS · pith_short_16: HXWAIPUDUENS2NRC · pith_short_8: HXWAIPUD

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/HXWAIPUDUENS2NRCNUGGN5UWN3 \
  | 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: 3dec043e83a11b2d36226d0c66f6966ee59cc4e2ae8762aad89db1a5081a51fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ac5bb9ac087da09ff409feb92e364c6e20d133bc6b904817847346d517d539f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1999-05-25T14:39:28Z",
    "title_canon_sha256": "78348227bce32c1be891457319aacb2ee01b626497832ac276b4d307e1c1eb46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9905085",
    "kind": "arxiv",
    "version": 1
  }
}