Pith Number

pith:42MA5UHF

pith:2008:42MA5UHF5AIFHXIFUO5FLCBDOV

not attested not anchored not stored refs pending

Simulating quantum systems using real Hilbert spaces

Matthew McKague, Michele Mosca, Nicolas Gisin

arxiv:0810.1923 v1 · 2008-10-10 · 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{42MA5UHF5AIFHXIFUO5FLCBDOV}

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	2026-07-04T15:57:11.179942Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6980ed0e5e81053dd05a3ba558823756d1fd955fdb82fd125bff42d4eba26e2

Aliases

arxiv: 0810.1923 · arxiv_version: 0810.1923v1 · doi: 10.48550/arxiv.0810.1923 · pith_short_12: 42MA5UHF5AIF · pith_short_16: 42MA5UHF5AIFHXIF · pith_short_8: 42MA5UHF

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/42MA5UHF5AIFHXIFUO5FLCBDOV \
  | 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: e6980ed0e5e81053dd05a3ba558823756d1fd955fdb82fd125bff42d4eba26e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b69bb4aa677961fe30052b9440cac1fa69a0995f800428f13c32973f14e02b59",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2008-10-10T17:14:49Z",
    "title_canon_sha256": "bdadf99cc863d910e44082b38439740e8c04743f3baede41ee8c90df56f2bfb2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.1923",
    "kind": "arxiv",
    "version": 1
  }
}