Pith Number

pith:V6RC2UWM

pith:2020:V6RC2UWMKPABKJT7SD5GDT6RJ3

not attested not anchored not stored refs pending

Quantum repeaters in space

Carlo Liorni, Dagmar Bruss, Hermann Kampermann

arxiv:2005.10146 v1 · 2020-05-20 · 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{V6RC2UWMKPABKJT7SD5GDT6RJ3}

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	2026-07-05T02:40:27.425575Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

afa22d52cc53c015267f90fa61cfd14ef35e87482a4db6a2deda49d16ec727ba

Aliases

arxiv: 2005.10146 · arxiv_version: 2005.10146v1 · doi: 10.48550/arxiv.2005.10146 · pith_short_12: V6RC2UWMKPAB · pith_short_16: V6RC2UWMKPABKJT7 · pith_short_8: V6RC2UWM

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/V6RC2UWMKPABKJT7SD5GDT6RJ3 \
  | 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: afa22d52cc53c015267f90fa61cfd14ef35e87482a4db6a2deda49d16ec727ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48ddd86f9e4c27df2f6f6da2af59737219ed4d7da712837749cef22a39151eb0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-05-20T15:43:42Z",
    "title_canon_sha256": "a91b40a8702d1e8e1921514a8045e186118d3735a5542769dd723d9a0f95455e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.10146",
    "kind": "arxiv",
    "version": 1
  }
}