Pith Number

pith:2B5MXLUW

pith:2009:2B5MXLUWDFIRJW2EMGWQSYP6QT

not attested not anchored not stored refs pending

Matchgate quantum computing and non-local process analysis

A. Fedrizzi, A. G. White, A. M. Steinberg, S. Ramelow

arxiv:0909.3016 v3 · 2009-09-16 · 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{2B5MXLUWDFIRJW2EMGWQSYP6QT}

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	2026-05-18T04:27:28.307326Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d07acbae96195114db4461ad0961fe84c1bec0b3ae16507099b2d07713029306

Aliases

arxiv: 0909.3016 · arxiv_version: 0909.3016v3 · doi: 10.48550/arxiv.0909.3016 · pith_short_12: 2B5MXLUWDFIR · pith_short_16: 2B5MXLUWDFIRJW2E · pith_short_8: 2B5MXLUW

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/2B5MXLUWDFIRJW2EMGWQSYP6QT \
  | 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: d07acbae96195114db4461ad0961fe84c1bec0b3ae16507099b2d07713029306

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "696bc6d84ddb5ccef85692cea88719e162062ef4b813e31dbffce5764d1e706a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-09-16T14:05:37Z",
    "title_canon_sha256": "80a91d78052510eba803a167cbb870636b22101836320ff89187f06a0862c146"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.3016",
    "kind": "arxiv",
    "version": 3
  }
}