Pith Number

pith:6N7ZWTPB

pith:2013:6N7ZWTPB3DAQK4KGPKXNBRFFQO

not attested not anchored not stored refs pending

Quantum filtering using POVM measurements

Alain Sarlette, Hugo Thienpont, Ram A. Somaraju

arxiv:1303.2631 v3 · 2013-03-11 · quant-ph · cs.SY · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6N7ZWTPB3DAQK4KGPKXNBRFFQO}

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	2026-05-18T03:13:58.153333Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f37f9b4de1d8c10571467aaed0c4a583a7ad456fb2763a4ce925ac5a1ef0c7c8

Aliases

arxiv: 1303.2631 · arxiv_version: 1303.2631v3 · doi: 10.48550/arxiv.1303.2631 · pith_short_12: 6N7ZWTPB3DAQ · pith_short_16: 6N7ZWTPB3DAQK4KG · pith_short_8: 6N7ZWTPB

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/6N7ZWTPB3DAQK4KGPKXNBRFFQO \
  | 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: f37f9b4de1d8c10571467aaed0c4a583a7ad456fb2763a4ce925ac5a1ef0c7c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2db65d7360e73205618d3b16d70bc0fe89eb72181a789f4c032cd85973ec45ec",
    "cross_cats_sorted": [
      "cs.SY",
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-03-11T19:21:31Z",
    "title_canon_sha256": "cb237aca57bd822f88f0095f5a5a6fae238091c65bcdb6a84723f5a06055ef5e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.2631",
    "kind": "arxiv",
    "version": 3
  }
}