Pith Number

pith:D6KPP3NJ

pith:2020:D6KPP3NJUZJWY57KSIJ74OXC5Y

not attested not anchored not stored refs pending

Arbitrarily many independent observers can share the nonlocality of a single maximally entangled qubit pair

Peter J. Brown, Roger Colbeck

arxiv:2003.12105 v2 · 2020-03-26 · 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{D6KPP3NJUZJWY57KSIJ74OXC5Y}

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	2026-07-05T01:32:02.033513Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f94f7eda9a6536c77ea9213fe3ae2ee04c5dd77e7bf195adbade30a579612ef

Aliases

arxiv: 2003.12105 · arxiv_version: 2003.12105v2 · doi: 10.48550/arxiv.2003.12105 · pith_short_12: D6KPP3NJUZJW · pith_short_16: D6KPP3NJUZJWY57K · pith_short_8: D6KPP3NJ

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/D6KPP3NJUZJWY57KSIJ74OXC5Y \
  | 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: 1f94f7eda9a6536c77ea9213fe3ae2ee04c5dd77e7bf195adbade30a579612ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0bee77f511a72c29f6b11f423058acca12ba7d4354b12af1e49f5e3821d05bbc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-03-26T18:38:56Z",
    "title_canon_sha256": "b0d595e67c68c5dbc5c9ad48ceee3249029c64af413eb9afbc047d992c258045"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.12105",
    "kind": "arxiv",
    "version": 2
  }
}