Pith Number

pith:62RV42U6

pith:2020:62RV42U6WEVY6VC24HVZI2MJX5

not attested not anchored not stored refs pending

Secret key distillation over satellite-to-satellite free-space optics channel with a limited-sized aperture eavesdropper in the same plane of the legitimate receiver

Ivan B. Djordjevic, Ziwen Pan

arxiv:2009.05920 v2 · 2020-09-13 · cs.IT · math.IT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{62RV42U6WEVY6VC24HVZI2MJX5}

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	2026-07-05T02:02:23.978799Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6a35e6a9eb12b8f545ae1eb946989bf6c57e1bc277cf20c373cb2d2aaab1e80

Aliases

arxiv: 2009.05920 · arxiv_version: 2009.05920v2 · doi: 10.48550/arxiv.2009.05920 · pith_short_12: 62RV42U6WEVY · pith_short_16: 62RV42U6WEVY6VC2 · pith_short_8: 62RV42U6

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/62RV42U6WEVY6VC24HVZI2MJX5 \
  | 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: f6a35e6a9eb12b8f545ae1eb946989bf6c57e1bc277cf20c373cb2d2aaab1e80

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23f9516fe69e868c155b9ac0d627b42a7acda321bcde5b2be77107e8a40e1051",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2020-09-13T04:53:24Z",
    "title_canon_sha256": "efbae9c5e72bf2e1bb22b2e0cf68d939b3ba0cdca6f83b37cd792d39a1fa8a4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.05920",
    "kind": "arxiv",
    "version": 2
  }
}