Pith Number

pith:7PCBCCCZ

pith:2017:7PCBCCCZAG7AGEDB46PIYF2S3R

not attested not anchored not stored refs pending

Secure Communications using Nonlinear Silicon Photonic Keys

A. Brinton Cooper, Amy C. Foster, Brian C. Grubel, Bryan T. Bosworth, Mark A. Foster, Michael R. Kossey

arxiv:1711.01439 v2 · 2017-11-04 · cs.CR · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7PCBCCCZAG7AGEDB46PIYF2S3R}

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	2026-05-18T00:21:09.973734Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbc411085901be031061e79e8c1752dc66ae44d57ff8ca6f9c8541f71c664b35

Aliases

arxiv: 1711.01439 · arxiv_version: 1711.01439v2 · doi: 10.48550/arxiv.1711.01439 · pith_short_12: 7PCBCCCZAG7A · pith_short_16: 7PCBCCCZAG7AGEDB · pith_short_8: 7PCBCCCZ

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/7PCBCCCZAG7AGEDB46PIYF2S3R \
  | 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: fbc411085901be031061e79e8c1752dc66ae44d57ff8ca6f9c8541f71c664b35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f974bdcce1e686c8ce7da7c14fcacf64b18c1f36a2841afbbaf183c80e3c482",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2017-11-04T13:53:36Z",
    "title_canon_sha256": "8f4bfb02fc25a766d4eddc57ab35e31590c886a1e66772925e780d6c63a89e1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.01439",
    "kind": "arxiv",
    "version": 2
  }
}