Pith Number

pith:75J4DU5T

pith:2015:75J4DU5TBFKSYBLMEPS224YK47

not attested not anchored not stored refs pending

On unitary reconstruction of linear optical networks

Christian Schmidt, Max Tillmann, Philip Walther

arxiv:1512.04769 v2 · 2015-12-15 · quant-ph · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{75J4DU5TBFKSYBLMEPS224YK47}

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	2026-05-18T01:02:59.264431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff53c1d3b309552c056c23e5ad730ae7d7bbf63d931a6ead3aa60a150d365bac

Aliases

arxiv: 1512.04769 · arxiv_version: 1512.04769v2 · doi: 10.48550/arxiv.1512.04769 · pith_short_12: 75J4DU5TBFKS · pith_short_16: 75J4DU5TBFKSYBLM · pith_short_8: 75J4DU5T

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/75J4DU5TBFKSYBLMEPS224YK47 \
  | 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: ff53c1d3b309552c056c23e5ad730ae7d7bbf63d931a6ead3aa60a150d365bac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4108166418925b5b4538b16d49d1d51580a36cd2d683227cf4097fb96b7782e7",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-12-15T13:00:49Z",
    "title_canon_sha256": "1785d5e47d1390ac9c5b22d8de55ce910ff884c93a4bb546467db42d6eead9e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.04769",
    "kind": "arxiv",
    "version": 2
  }
}