Pith Number

pith:VUPEQFLF

pith:2017:VUPEQFLFR7JY77QXWMVPHZW6PS

not attested not anchored not stored refs pending

Heisenberg scaling with classical long-range correlations

Diego Porras, Jacob A. Dunningham, Samuel Fern\'andez-Lorenzo

arxiv:1708.09361 v2 · 2017-08-30 · 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{VUPEQFLFR7JY77QXWMVPHZW6PS}

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	2026-05-18T00:21:54.715555Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad1e4815658fd38ffe17b32af3e6de7c87d38da9a3c3f0cbeac13d22c2a55e04

Aliases

arxiv: 1708.09361 · arxiv_version: 1708.09361v2 · doi: 10.48550/arxiv.1708.09361 · pith_short_12: VUPEQFLFR7JY · pith_short_16: VUPEQFLFR7JY77QX · pith_short_8: VUPEQFLF

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/VUPEQFLFR7JY77QXWMVPHZW6PS \
  | 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: ad1e4815658fd38ffe17b32af3e6de7c87d38da9a3c3f0cbeac13d22c2a55e04

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50ae8f563eb6c820b7cf0d6e5cdf51a6446f78ec590fab5c2b916dc7a9ecc090",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-08-30T16:50:19Z",
    "title_canon_sha256": "797e5c89be605da462a795cd1740b545807e7aa9bb457735272b93f583311769"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.09361",
    "kind": "arxiv",
    "version": 2
  }
}