Pith Number

pith:TR7WVMQ7

pith:2017:TR7WVMQ7FGG6LDDYMNQ5C7IDLV

not attested not anchored not stored refs pending

Information-Dense Nonlinear Photonic Physical Unclonable Function

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

arxiv:1711.02222 v1 · 2017-11-06 · physics.optics · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TR7WVMQ7FGG6LDDYMNQ5C7IDLV}

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	2026-05-18T00:31:08.529077Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c7f6ab21f298de58c786361d17d035d7de06b79e9b83d7f5ef2617786a33b1b

Aliases

arxiv: 1711.02222 · arxiv_version: 1711.02222v1 · doi: 10.48550/arxiv.1711.02222 · pith_short_12: TR7WVMQ7FGG6 · pith_short_16: TR7WVMQ7FGG6LDDY · pith_short_8: TR7WVMQ7

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/TR7WVMQ7FGG6LDDYMNQ5C7IDLV \
  | 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: 9c7f6ab21f298de58c786361d17d035d7de06b79e9b83d7f5ef2617786a33b1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe36f6a4a9955a3b8c1f245a38f6d31b0bd64a84f16b6a61325472077dce4cd3",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2017-11-06T23:39:16Z",
    "title_canon_sha256": "4579e4a199f224339887d95f5e0e442975432dd670b3370d599b7f31af97c274"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.02222",
    "kind": "arxiv",
    "version": 1
  }
}