Pith Number

pith:EC3HZFTD

pith:2025:EC3HZFTDJ46AIPI2MULATJPCYI

not attested not anchored not stored refs pending

The Problem with Safety Classification is not just the Models

Sowmya Vajjala

arxiv:2507.21782 v1 · 2025-07-29 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EC3HZFTDJ46AIPI2MULATJPCYI}

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	2026-07-05T11:45:07.359448Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20b67c96634f3c043d1a651609a5e2c230b04b41c16d5ff054674b67ab989553

Aliases

arxiv: 2507.21782 · arxiv_version: 2507.21782v1 · doi: 10.48550/arxiv.2507.21782 · pith_short_12: EC3HZFTDJ46A · pith_short_16: EC3HZFTDJ46AIPI2 · pith_short_8: EC3HZFTD

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/EC3HZFTDJ46AIPI2MULATJPCYI \
  | 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: 20b67c96634f3c043d1a651609a5e2c230b04b41c16d5ff054674b67ab989553

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b366ec51e9b35147cfa18a4fe2978282b5d216b19620e69dce905a564cc3576c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-07-29T13:09:40Z",
    "title_canon_sha256": "d682ff03f642b2a829bd4f8a98e7e39835b6871ad533099e349d0020a4285b10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.21782",
    "kind": "arxiv",
    "version": 1
  }
}