Pith Number

pith:D7HOYLQW

pith:2017:D7HOYLQWTOAH37UKPHA2GVUA6O

not attested not anchored not stored refs pending

Optimal nonlinear filtering of quantum state

L.A. Markovich, V.I. Man'ko

arxiv:1701.06130 v2 · 2017-01-22 · 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{D7HOYLQWTOAH37UKPHA2GVUA6O}

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	2026-05-18T00:12:02.630012Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1fceec2e169b807dfe8a79c1a35680f3b32fdfaa45366a3e4fa82fe424a2fc90

Aliases

arxiv: 1701.06130 · arxiv_version: 1701.06130v2 · doi: 10.48550/arxiv.1701.06130 · pith_short_12: D7HOYLQWTOAH · pith_short_16: D7HOYLQWTOAH37UK · pith_short_8: D7HOYLQW

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/D7HOYLQWTOAH37UKPHA2GVUA6O \
  | 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: 1fceec2e169b807dfe8a79c1a35680f3b32fdfaa45366a3e4fa82fe424a2fc90

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88314031294a138b81bb14820e102ec9fbb90f19097401f5c43513c363a02066",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-01-22T06:47:01Z",
    "title_canon_sha256": "c3f969b109e0963e33d12208bc918e375e0b4561e0dc958eaf690c8ac5fef7d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.06130",
    "kind": "arxiv",
    "version": 2
  }
}