Pith Number

pith:42Q5J7LW

pith:2018:42Q5J7LWZJBRFPA2HJJZIOGNKA

not attested not anchored not stored refs pending

A Spacetime Area Law Bound on Quantum Correlations

Ilya Kull, Philippe Allard Gu\'erin, \v{C}aslav Brukner

arxiv:1807.09187 v2 · 2018-07-24 · 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{42Q5J7LWZJBRFPA2HJJZIOGNKA}

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	2026-05-17T23:41:13.109216Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6a1d4fd76ca4312bc1a3a539438cd5022714b2cafe2f1cf43a7c2cc69ad50b9

Aliases

arxiv: 1807.09187 · arxiv_version: 1807.09187v2 · doi: 10.48550/arxiv.1807.09187 · pith_short_12: 42Q5J7LWZJBR · pith_short_16: 42Q5J7LWZJBRFPA2 · pith_short_8: 42Q5J7LW

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/42Q5J7LWZJBRFPA2HJJZIOGNKA \
  | 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: e6a1d4fd76ca4312bc1a3a539438cd5022714b2cafe2f1cf43a7c2cc69ad50b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "25d4974a25bf0edf57f2567adf64eebd27bccd59abe15aec3402402ae0f7ac25",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-07-24T15:39:57Z",
    "title_canon_sha256": "fcdbf4279f95c1a5456ec1b29533ea5e45b3c3b4a96d835ef4cb2d4a518f6527"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.09187",
    "kind": "arxiv",
    "version": 2
  }
}