Pith Number

pith:GAM72X5M

pith:2006:GAM72X5M4UYDNAQOW7U7LDPRJ3

not attested not anchored not stored refs pending

Robust observer for uncertain linear quantum systems

Naoki Yamamoto

arxiv:quant-ph/0602235 v2 · 2006-02-28 · quant-ph

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

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	2026-05-18T04:08:52.278725Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3019fd5face53036820eb7e9f58df14edd14aa7f6e9e3296437f02cee508f532

Aliases

arxiv: quant-ph/0602235 · arxiv_version: quant-ph/0602235v2 · doi: 10.48550/arxiv.quant-ph/0602235 · pith_short_12: GAM72X5M4UYD · pith_short_16: GAM72X5M4UYDNAQO · pith_short_8: GAM72X5M

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/GAM72X5M4UYDNAQOW7U7LDPRJ3 \
  | 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: 3019fd5face53036820eb7e9f58df14edd14aa7f6e9e3296437f02cee508f532

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7bf3d267724f9f054fb5184a8e73621acaba392a9a647aa83712fc339bef624",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2006-02-28T19:12:19Z",
    "title_canon_sha256": "98d02735577ae09258f24d40f731fc6e3c33dfc79b19cb0543b6634361800434"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0602235",
    "kind": "arxiv",
    "version": 2
  }
}