Pith Number

pith:EB5WNWEA

pith:2025:EB5WNWEARNEXV6XAI4QPFAFRGH

not attested not anchored not stored refs pending

Libra: Large Chinese-based Safeguard for AI Content

Dongqin Liu, Huimu Yu, Songlin Hu, Xing Wu, Ziyang Chen

arxiv:2507.21929 v1 · 2025-07-29 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EB5WNWEARNEXV6XAI4QPFAFRGH}

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	2026-07-05T11:45:09.947710Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

207b66d8808b497afae04720f280b131fdc20b25b47e8332cdb4d5fe0c2122e7

Aliases

arxiv: 2507.21929 · arxiv_version: 2507.21929v1 · doi: 10.48550/arxiv.2507.21929 · pith_short_12: EB5WNWEARNEX · pith_short_16: EB5WNWEARNEXV6XA · pith_short_8: EB5WNWEA

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/EB5WNWEARNEXV6XAI4QPFAFRGH \
  | 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: 207b66d8808b497afae04720f280b131fdc20b25b47e8332cdb4d5fe0c2122e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92b8e0e6c5e8e4cc2b88206d8a8d010a0596778f3cb26e8ad13c8f550e8158e4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2025-07-29T15:45:50Z",
    "title_canon_sha256": "6909a7d26b8b0e3df24174f1527188b29ce60a712b2d7aa66013ace6069ee9f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.21929",
    "kind": "arxiv",
    "version": 1
  }
}