Pith Number

pith:ONPHLDV2

pith:2025:ONPHLDV2YQGDU6DF5CI5AEEQWK

not attested not anchored not stored refs pending

Secure Parsing and Serializing with Separation Logic Applied to CBOR, CDDL, and COSE

Gabriel Ebner, Guido Mart\'inez, Nikhil Swamy, Tahina Ramananandro

arxiv:2505.17335 v2 · 2025-05-22 · cs.CR · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ONPHLDV2YQGDU6DF5CI5AEEQWK}

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	2026-07-05T11:38:51.520869Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

735e758ebac40c3a7865e891d01090b2ac4cbdd366ce5ff908c8fe66927d615e

Aliases

arxiv: 2505.17335 · arxiv_version: 2505.17335v2 · doi: 10.48550/arxiv.2505.17335 · pith_short_12: ONPHLDV2YQGD · pith_short_16: ONPHLDV2YQGDU6DF · pith_short_8: ONPHLDV2

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/ONPHLDV2YQGDU6DF5CI5AEEQWK \
  | 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: 735e758ebac40c3a7865e891d01090b2ac4cbdd366ce5ff908c8fe66927d615e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "005ddd898ba182572596d3895390e6c3bd7c637b680935d8587e40522375d3f9",
    "cross_cats_sorted": [
      "cs.PL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2025-05-22T23:12:03Z",
    "title_canon_sha256": "c9bad4c08eae28c590e740a1d0f9403deeb70bac174bf1898dafc3e1b0355361"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.17335",
    "kind": "arxiv",
    "version": 2
  }
}