Pith Number

pith:BB6OVQH6

pith:2018:BB6OVQH6IO5CXDKVU4UNJCNHRG

not attested not anchored not stored refs pending

An Introduction to Quantum Filtering

John E. Gough

arxiv:1804.09086 v1 · 2018-04-24 · quant-ph · math.OC · 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{BB6OVQH6IO5CXDKVU4UNJCNHRG}

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	2026-05-18T00:17:36.371827Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

087ceac0fe43ba2b8d55a728d489a78995caea823e6e2551e8d4f41830b3ce9d

Aliases

arxiv: 1804.09086 · arxiv_version: 1804.09086v1 · doi: 10.48550/arxiv.1804.09086 · pith_short_12: BB6OVQH6IO5C · pith_short_16: BB6OVQH6IO5CXDKV · pith_short_8: BB6OVQH6

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/BB6OVQH6IO5CXDKVU4UNJCNHRG \
  | 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: 087ceac0fe43ba2b8d55a728d489a78995caea823e6e2551e8d4f41830b3ce9d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26a2a2f3d5eb373dc8e64011feee1c8e184dc4d01b8bf3c77ed2cc6cf0f2d083",
    "cross_cats_sorted": [
      "math.OC",
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-04-24T15:10:06Z",
    "title_canon_sha256": "1a3d692d9173887bdfbb7ed682b19b97437976302fddfa36c6437118389148fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.09086",
    "kind": "arxiv",
    "version": 1
  }
}