Pith Number

pith:M4M4PUUH

pith:2016:M4M4PUUHZCB266BQIZX3EAOQ3T

not attested not anchored not stored refs pending

Test for a large amount of entanglement, using few measurements

Ben W. Reichardt, Chris Sutherland, Rui Chao, Thomas Vidick

arxiv:1610.00771 v2 · 2016-10-03 · 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{M4M4PUUHZCB266BQIZX3EAOQ3T}

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	2026-05-18T00:06:31.169757Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6719c7d287c883af7830466fb201d0dcf48fdff314bfee1110ab530ce316452d

Aliases

arxiv: 1610.00771 · arxiv_version: 1610.00771v2 · doi: 10.48550/arxiv.1610.00771 · pith_short_12: M4M4PUUHZCB2 · pith_short_16: M4M4PUUHZCB266BQ · pith_short_8: M4M4PUUH

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/M4M4PUUHZCB266BQIZX3EAOQ3T \
  | 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: 6719c7d287c883af7830466fb201d0dcf48fdff314bfee1110ab530ce316452d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "390d185ade55b0818e6e64e372e08cc79e6030054035fc76f21db6f18fd071b7",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2016-10-03T22:11:39Z",
    "title_canon_sha256": "f98a6119324a52b9c10ecfc0ec120454121e4a375c0958fc94a80a74354cb679"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.00771",
    "kind": "arxiv",
    "version": 2
  }
}