Pith Number

pith:6KUSXH6O

pith:2018:6KUSXH6OM3ZNT6QSA4DMBYMWO4

not attested not anchored not stored refs pending

All macroscopic quantum states are fragile and hard to prepare

Andrea L\'opez-Incera, Pavel Sekatski, Wolfgang D\"ur

arxiv:1805.09868 v2 · 2018-05-24 · 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{6KUSXH6OM3ZNT6QSA4DMBYMWO4}

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	2026-05-17T23:54:39.559832Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2a92b9fce66f2d9fa120706c0e196772a049de6fa6eec16ca7863ce0baf1b09

Aliases

arxiv: 1805.09868 · arxiv_version: 1805.09868v2 · doi: 10.48550/arxiv.1805.09868 · pith_short_12: 6KUSXH6OM3ZN · pith_short_16: 6KUSXH6OM3ZNT6QS · pith_short_8: 6KUSXH6O

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/6KUSXH6OM3ZNT6QSA4DMBYMWO4 \
  | 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: f2a92b9fce66f2d9fa120706c0e196772a049de6fa6eec16ca7863ce0baf1b09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9074fbe141b7a9e502883d63c5fe08fad1fdfd83d421b52c8b5d027c7e4b064f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-05-24T19:43:14Z",
    "title_canon_sha256": "13f79502b3b2ea81d890e21f8b200cbefefad4693c4883d9bc99f5998da12069"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.09868",
    "kind": "arxiv",
    "version": 2
  }
}