Pith Number

pith:RN3QLLC2

pith:2017:RN3QLLC2JOQAJWEHLYJKGCC3BV

not attested not anchored not stored refs pending

An Exponential Quantum Projection Filter for Open Quantum Systems

Guofeng Zhang, Ian R. Petersen, Qing Gao

arxiv:1705.09114 v2 · 2017-05-25 · math-ph · math.MP · 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{RN3QLLC2JOQAJWEHLYJKGCC3BV}

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	2026-05-18T00:02:55.248056Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b7705ac5a4ba004d8875e12a3085b0d793eeacdeec6b7e61ecf357eb800327b

Aliases

arxiv: 1705.09114 · arxiv_version: 1705.09114v2 · doi: 10.48550/arxiv.1705.09114 · pith_short_12: RN3QLLC2JOQA · pith_short_16: RN3QLLC2JOQAJWEH · pith_short_8: RN3QLLC2

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/RN3QLLC2JOQAJWEHLYJKGCC3BV \
  | 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: 8b7705ac5a4ba004d8875e12a3085b0d793eeacdeec6b7e61ecf357eb800327b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f03d6fdc940eaa091a29b73a143a5fca503862c7ce226cda880092eed17899f2",
    "cross_cats_sorted": [
      "math.MP",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2017-05-25T09:56:53Z",
    "title_canon_sha256": "ade82771e61790b6c0a7cf57b8a5ed0f560c230eeaca8cdd91bd8f35782f2317"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.09114",
    "kind": "arxiv",
    "version": 2
  }
}