Pith Number

pith:GA7V4GBD

pith:2014:GA7V4GBDLTOLLPOVBGZXFTNXCT

not attested not anchored not stored refs pending

How to test the "quantumness" of a quantum computer?

Alexandre M. Zagoskin, Evgeni Ilichev, Franco Nori, Joseph J. Betouras, Miroslav Grajcar

arxiv:1401.2870 v1 · 2014-01-13 · 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{GA7V4GBDLTOLLPOVBGZXFTNXCT}

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	2026-05-18T02:45:58.068236Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

303f5e18235cdcb5bdd509b372cdb714c5f6bd7e749552fe6b7f036ab02d32ca

Aliases

arxiv: 1401.2870 · arxiv_version: 1401.2870v1 · doi: 10.48550/arxiv.1401.2870 · pith_short_12: GA7V4GBDLTOL · pith_short_16: GA7V4GBDLTOLLPOV · pith_short_8: GA7V4GBD

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/GA7V4GBDLTOLLPOVBGZXFTNXCT \
  | 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: 303f5e18235cdcb5bdd509b372cdb714c5f6bd7e749552fe6b7f036ab02d32ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b37e9dec7e741b4d43fc1074cadf39cb88f3ed3d2c8f66c95a0d12637a846e1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-01-13T15:31:33Z",
    "title_canon_sha256": "7081f9280db8ff4c7f19cc6b5b8d1e725da57b72f2ad3d8e7254fb5b9a87414e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.2870",
    "kind": "arxiv",
    "version": 1
  }
}