Pith Number

pith:XWRMX4GM

pith:2025:XWRMX4GMCWUG6GREY5CB3WXATL

not attested not anchored not stored refs pending

Picachv: Formally Verified Data Use Policy Enforcement for Secure Data Analytics

Chenghong Wang, Haobin Hiroki Chen, Hongbo Chen, Mingshen Sun, Xiaofeng Wang

arxiv:2501.10560 v1 · 2025-01-17 · cs.CR · cs.DB · 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{XWRMX4GMCWUG6GREY5CB3WXATL}

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	2026-07-05T10:02:30.021680Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bda2cbf0cc15a86f1a24c7441ddae09ae131960008654f24a06216f5991de734

Aliases

arxiv: 2501.10560 · arxiv_version: 2501.10560v1 · doi: 10.48550/arxiv.2501.10560 · pith_short_12: XWRMX4GMCWUG · pith_short_16: XWRMX4GMCWUG6GRE · pith_short_8: XWRMX4GM

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/XWRMX4GMCWUG6GREY5CB3WXATL \
  | 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: bda2cbf0cc15a86f1a24c7441ddae09ae131960008654f24a06216f5991de734

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b132e98541665e033c7885d74850fee67478a5cf5f4b94e348effefb473c7f09",
    "cross_cats_sorted": [
      "cs.DB",
      "cs.PL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2025-01-17T21:30:55Z",
    "title_canon_sha256": "e95c9cf744cda342e1d40e06a5da8fb287bd231051d3230678b30a6b91d6f27c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.10560",
    "kind": "arxiv",
    "version": 1
  }
}