Pith Number

pith:QYHBCX5M

pith:2026:QYHBCX5MKYZDKVZHK7GHMZ2EFM

not attested not anchored not stored refs pending

Projection Operator Stochastic Equations for Non-Markovian Quantum Systems Under Continuous Measurement-Based Feedback

H. I. Nurdin

arxiv:2606.31321 v1 · 2026-06-30 · quant-ph · cs.SY · eess.SY · math-ph · math.MP · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QYHBCX5MKYZDKVZHK7GHMZ2EFM}

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	2026-07-01T01:17:59.117487Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

860e115fac563235572757cc7667442b0eeb3b2440c01439fcba48e796f09fcf

Aliases

arxiv: 2606.31321 · arxiv_version: 2606.31321v1 · doi: 10.48550/arxiv.2606.31321 · pith_short_12: QYHBCX5MKYZD · pith_short_16: QYHBCX5MKYZDKVZH · pith_short_8: QYHBCX5M

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/QYHBCX5MKYZDKVZHK7GHMZ2EFM \
  | 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: 860e115fac563235572757cc7667442b0eeb3b2440c01439fcba48e796f09fcf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2e70ebdd24a98c983c88cfffa9d26edb2e8daa40dae328ea0ab9c5081af9b36",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SY",
      "math-ph",
      "math.MP",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-06-30T08:27:00Z",
    "title_canon_sha256": "5bc87becff51be7a317d38dbe71fc4cfd4216e440116d4061431a73709f3ab8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.31321",
    "kind": "arxiv",
    "version": 1
  }
}