Pith Number

pith:VRRFEZ7G

pith:2012:VRRFEZ7GEPYIPHYUIBELJH5CPX

not attested not anchored not stored refs pending

Positive Wigner functions render classical simulation of quantum computation efficient

A. Mari, J. Eisert

arxiv:1208.3660 v2 · 2012-08-17 · 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{VRRFEZ7GEPYIPHYUIBELJH5CPX}

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	2026-05-18T01:55:09.680976Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac625267e623f0879f144048b49fa27dc7c8efd3eb90b4d847c22e517def53e8

Aliases

arxiv: 1208.3660 · arxiv_version: 1208.3660v2 · doi: 10.48550/arxiv.1208.3660 · pith_short_12: VRRFEZ7GEPYI · pith_short_16: VRRFEZ7GEPYIPHYU · pith_short_8: VRRFEZ7G

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/VRRFEZ7GEPYIPHYUIBELJH5CPX \
  | 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: ac625267e623f0879f144048b49fa27dc7c8efd3eb90b4d847c22e517def53e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41f6575bca7fc070451b57ec2d0881ef21b6f73a72919641c1bc992d9452d832",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-08-17T19:21:46Z",
    "title_canon_sha256": "317a25e330aa816e79ea7a7e68d9a9ee60d0da125180363e342d774122bc2003"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.3660",
    "kind": "arxiv",
    "version": 2
  }
}