Pith Number

pith:O5SZKGUR

pith:2021:O5SZKGURCZFC4IOXUCKHRTGJH5

not attested not anchored not stored refs pending

The Unpatchable Silicon: A Full Break of the Bitstream Encryption of Xilinx 7-Series FPGAs

Amir Moradi, Christof Paar, Maik Ender

arxiv:2105.13756 v1 · 2021-05-28 · 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{O5SZKGURCZFC4IOXUCKHRTGJH5}

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	2026-07-05T02:44:11.138413Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7765951a91164a2e21d7a09478ccc93f7507069fe7470890679d25f0337a6b53

Aliases

arxiv: 2105.13756 · arxiv_version: 2105.13756v1 · doi: 10.48550/arxiv.2105.13756 · pith_short_12: O5SZKGURCZFC · pith_short_16: O5SZKGURCZFC4IOX · pith_short_8: O5SZKGUR

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/O5SZKGURCZFC4IOXUCKHRTGJH5 \
  | 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: 7765951a91164a2e21d7a09478ccc93f7507069fe7470890679d25f0337a6b53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6963e75bf80e751c7ea00ff13dfaa8000661361103040b4e9e10d66e85a06f01",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2021-05-28T11:47:59Z",
    "title_canon_sha256": "f463848aa229fe56a04596e303a939b21ea6f6f71b566a9d592d495aa062f36b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.13756",
    "kind": "arxiv",
    "version": 1
  }
}