Pith Number

pith:Y644QF3A

pith:2013:Y644QF3AUQEKS3W2NTRYMYNBEB

not attested not anchored not stored refs pending

Open Quantum Systems and Quantum Algorithms

Paola Verrucchi, Stefano Bonzio

arxiv:1301.1801 v2 · 2013-01-09 · 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{Y644QF3AUQEKS3W2NTRYMYNBEB}

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	2026-05-18T01:23:51.057035Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7b9c81760a408a96eda6ce38661a12057423179891f71e4391ea0607df9cc64

Aliases

arxiv: 1301.1801 · arxiv_version: 1301.1801v2 · doi: 10.48550/arxiv.1301.1801 · pith_short_12: Y644QF3AUQEK · pith_short_16: Y644QF3AUQEKS3W2 · pith_short_8: Y644QF3A

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/Y644QF3AUQEKS3W2NTRYMYNBEB \
  | 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: c7b9c81760a408a96eda6ce38661a12057423179891f71e4391ea0607df9cc64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d619bd33d6494484cee15803bf8fabaaa923f418e67518eb42eeb075157a0873",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-01-09T10:22:50Z",
    "title_canon_sha256": "1c5b1242650641fa35b1f0c387b67342a512791b5ac69c3c6eb57dfce42464bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.1801",
    "kind": "arxiv",
    "version": 2
  }
}