Pith Number

pith:R4QT44NE

pith:2010:R4QT44NEP5PD3FD6LO3W36H7RL

not attested not anchored not stored refs pending

The extension problem for partial Boolean structures in Quantum Mechanics

Costantino Budroni, Giovanni Morchio

arxiv:1010.4662 v2 · 2010-10-22 · quant-ph · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R4QT44NEP5PD3FD6LO3W36H7RL}

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	2026-05-18T02:04:59.660658Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f213e71a47f5e3d947e5bb76df8ff8acbffd7f8eba84823a3c65a6071a38e89

Aliases

arxiv: 1010.4662 · arxiv_version: 1010.4662v2 · doi: 10.48550/arxiv.1010.4662 · pith_short_12: R4QT44NEP5PD · pith_short_16: R4QT44NEP5PD3FD6 · pith_short_8: R4QT44NE

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/R4QT44NEP5PD3FD6LO3W36H7RL \
  | 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: 8f213e71a47f5e3d947e5bb76df8ff8acbffd7f8eba84823a3c65a6071a38e89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac4482950e48634ba70042e3879a7511c5f052a3f7c3384ea7f434dbc54b1e70",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-10-22T10:06:09Z",
    "title_canon_sha256": "3ae2c9afa0adb14f7755a6667129f979f02b861d5280dae1d4702e512f88ccd7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.4662",
    "kind": "arxiv",
    "version": 2
  }
}