Pith Number

pith:QQRB4BJU

pith:2022:QQRB4BJUBMMEX6IGIQ4RAIHB67

not attested not anchored not stored refs pending

Policy Compliance Detection via Expression Tree Inference

Andreas Vlachos, Lambert Mathias, Majid Yazdani, Marzieh Saeidi, Neema Kotonya

arxiv:2205.12259 v1 · 2022-05-24 · cs.CL · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QQRB4BJUBMMEX6IGIQ4RAIHB67}

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	2026-07-05T04:26:12.709267Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84221e05340b184bf90644391020e1f7efdffc45d424514e4931c6e6e9443f2e

Aliases

arxiv: 2205.12259 · arxiv_version: 2205.12259v1 · doi: 10.48550/arxiv.2205.12259 · pith_short_12: QQRB4BJUBMME · pith_short_16: QQRB4BJUBMMEX6IG · pith_short_8: QQRB4BJU

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/QQRB4BJUBMMEX6IGIQ4RAIHB67 \
  | 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: 84221e05340b184bf90644391020e1f7efdffc45d424514e4931c6e6e9443f2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cfe27148e7fe8b619ce6479810839ae192b715e48f368799e68b4414b24cfd55",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2022-05-24T17:59:31Z",
    "title_canon_sha256": "fb39d6a4c801bc8b14eee6f8adffc86a40a6d5b3a9d4ba38a7e590087eac2ac8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.12259",
    "kind": "arxiv",
    "version": 1
  }
}