Pith Number

pith:PQAPILUL

pith:2015:PQAPILULSSNDVFRM55BFIRTD2R

not attested not anchored not stored refs pending

Secure Zones: An Attribute-Based Encryption advisory system for safe firearms

Chien-Chung Shen, Marcos Portnoi

arxiv:1504.07193 v1 · 2015-04-27 · 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{PQAPILULSSNDVFRM55BFIRTD2R}

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	2026-05-18T02:17:43.529037Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c00f42e8b949a3a962cef42544663d47a48a624fa38c9e401e678100f91e18a

Aliases

arxiv: 1504.07193 · arxiv_version: 1504.07193v1 · doi: 10.48550/arxiv.1504.07193 · pith_short_12: PQAPILULSSND · pith_short_16: PQAPILULSSNDVFRM · pith_short_8: PQAPILUL

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/PQAPILULSSNDVFRM55BFIRTD2R \
  | 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: 7c00f42e8b949a3a962cef42544663d47a48a624fa38c9e401e678100f91e18a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04b5a5856f738ed98bf2674b86dc85e6b3d6279bc7520bbe763f5d3ebc879e71",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2015-04-27T18:11:54Z",
    "title_canon_sha256": "8e5d5b1006f27f555ac8a29a83ab376de22ff5113bfd3b475f9776d429ebfd9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.07193",
    "kind": "arxiv",
    "version": 1
  }
}