Pith Number

pith:SK5F47CY

pith:2019:SK5F47CY5F5CGICIVOVKFC3HZM

not attested not anchored not stored refs pending

Extended Report on the Obfuscated Integration of Software Protections

Bart Coppens, Bjorn De Sutter, Jens Van den Broeck

arxiv:1907.01445 v2 · 2019-07-02 · 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{SK5F47CY5F5CGICIVOVKFC3HZM}

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	2026-05-17T23:41:35.992351Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92ba5e7c58e97a232048abaaa28b67cb1b5c9945e5db6950ec9ae3a8fbd0520f

Aliases

arxiv: 1907.01445 · arxiv_version: 1907.01445v2 · doi: 10.48550/arxiv.1907.01445 · pith_short_12: SK5F47CY5F5C · pith_short_16: SK5F47CY5F5CGICI · pith_short_8: SK5F47CY

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/SK5F47CY5F5CGICIVOVKFC3HZM \
  | 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: 92ba5e7c58e97a232048abaaa28b67cb1b5c9945e5db6950ec9ae3a8fbd0520f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9df8ef46110ef721673e00e63382df8acfb48fa246a6523691b26cd30ad0fc47",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2019-07-02T15:27:04Z",
    "title_canon_sha256": "8143960c94bd10982d16d999c9a46301e13f4cb8d97416e8d6d5b17d3738eed0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.01445",
    "kind": "arxiv",
    "version": 2
  }
}