Pith Number

pith:YPYU6VXO

pith:2009:YPYU6VXOOZOOO2XSJAYHZHAVS6

not attested not anchored not stored refs pending

`Classical' quantum states

Ingemar Bengtsson, Marek Ku\'s

arxiv:0905.0933 v1 · 2009-05-07 · 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{YPYU6VXOOZOOO2XSJAYHZHAVS6}

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	2026-05-18T03:24:06.544303Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3f14f56ee765ce76af248307c9c15978441e2e1bc4d8454d4c0c3aaedcad68d

Aliases

arxiv: 0905.0933 · arxiv_version: 0905.0933v1 · doi: 10.48550/arxiv.0905.0933 · pith_short_12: YPYU6VXOOZOO · pith_short_16: YPYU6VXOOZOOO2XS · pith_short_8: YPYU6VXO

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/YPYU6VXOOZOOO2XSJAYHZHAVS6 \
  | 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: c3f14f56ee765ce76af248307c9c15978441e2e1bc4d8454d4c0c3aaedcad68d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "700ef375bbdb4d012993b2bb3756c0891c10e74278d80787fcd7934fc0d651a1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-05-07T01:06:36Z",
    "title_canon_sha256": "10bcca0e9f9bfb0e1ffce34b946e96484b4c0e8db893ed6e163f5c4b8e0bb83a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.0933",
    "kind": "arxiv",
    "version": 1
  }
}