Pith Number

pith:4JIXA2UD

pith:2024:4JIXA2UDJT5AYN3T6VPELKXRWT

not attested not anchored not stored refs pending

A Physical Layer Analysis of Entropy in Delay-Based PUFs Implemented on FPGAs

Calvin Chan, Eirini Eleni Tsiropoulou, Jennifer Howard, Jim Plusquellic, Kristianna Hoffman, Ross MacKinnon

arxiv:2409.00825 v1 · 2024-09-01 · 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{4JIXA2UDJT5AYN3T6VPELKXRWT}

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	2026-07-05T09:01:53.987387Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e251706a834cfa0c3773f55e45aaf1b4e067cc5787cdedca9409a720cfd8778c

Aliases

arxiv: 2409.00825 · arxiv_version: 2409.00825v1 · doi: 10.48550/arxiv.2409.00825 · pith_short_12: 4JIXA2UDJT5A · pith_short_16: 4JIXA2UDJT5AYN3T · pith_short_8: 4JIXA2UD

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/4JIXA2UDJT5AYN3T6VPELKXRWT \
  | 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: e251706a834cfa0c3773f55e45aaf1b4e067cc5787cdedca9409a720cfd8778c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b172736fe7e2484e020b62dd82eb52ecbc2ddb58d561e26f552ee9745f46f5a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2024-09-01T19:46:03Z",
    "title_canon_sha256": "6e5265ec9037a2172b344e063d949e0e2d9141cf68987b9c11048b347f5a742c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2409.00825",
    "kind": "arxiv",
    "version": 1
  }
}