Pith Number

pith:XIDGIKC4

pith:2019:XIDGIKC4YQX5WBBNFOKXTFAZ7F

not attested not anchored not stored refs pending

Provably Secure Group Signature Schemes from Code-Based Assumptions

Huaxiong Wang, Hyung Tae Lee, Khoa Nguyen, Martianus Frederic Ezerman, San Ling

arxiv:1909.04472 v2 · 2019-09-10 · 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{XIDGIKC4YQX5WBBNFOKXTFAZ7F}

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	2026-07-05T00:41:12.917340Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba0664285cc42fdb042d2b95799419f9745d15f6461afd68f684e7509d35917c

Aliases

arxiv: 1909.04472 · arxiv_version: 1909.04472v2 · doi: 10.48550/arxiv.1909.04472 · pith_short_12: XIDGIKC4YQX5 · pith_short_16: XIDGIKC4YQX5WBBN · pith_short_8: XIDGIKC4

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/XIDGIKC4YQX5WBBNFOKXTFAZ7F \
  | 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: ba0664285cc42fdb042d2b95799419f9745d15f6461afd68f684e7509d35917c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b91451050c5e9b4688f17b12c39e02e3e597cc6a748f5304e9f3196fe18145e9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2019-09-10T13:35:47Z",
    "title_canon_sha256": "0671c7f6ea14305d0ae241685ad61a32bb25c7238ecf4d3268b4b4f69dfc5876"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.04472",
    "kind": "arxiv",
    "version": 2
  }
}