Pith Number

pith:EPZQJN65

pith:2020:EPZQJN656P7A75TETHCHTRWKFQ

not attested not anchored not stored refs pending

Satellite quantum repeaters for a quantum Internet

Mario Mastriani, Sundaraja Sitharama Iyengar

arxiv:2005.03450 v2 · 2020-05-04 · physics.gen-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{EPZQJN656P7A75TETHCHTRWKFQ}

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	2026-07-05T01:05:12.788960Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23f304b7ddf3fe0ff66499c479c6ca2c1fc6b570e4896b5f3f3c327ab7d34642

Aliases

arxiv: 2005.03450 · arxiv_version: 2005.03450v2 · doi: 10.48550/arxiv.2005.03450 · pith_short_12: EPZQJN656P7A · pith_short_16: EPZQJN656P7A75TE · pith_short_8: EPZQJN65

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/EPZQJN656P7A75TETHCHTRWKFQ \
  | 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: 23f304b7ddf3fe0ff66499c479c6ca2c1fc6b570e4896b5f3f3c327ab7d34642

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3885f2be9ff7e56f27fbb64705f3badd3caa79279b7538bc429ef7694804760f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2020-05-04T15:43:40Z",
    "title_canon_sha256": "4987b26aaa0721f4a163b64c435da3982f6ba8e5bedc6b789637b0c6b2ab3b13"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.03450",
    "kind": "arxiv",
    "version": 2
  }
}