Pith Number

pith:6ALL7LFY

pith:2026:6ALL7LFYF32SM37GTYHSL7W5U6

not attested not anchored not stored refs pending

What Your Model Threw Away and Why You'll Want It Back: Masking, Fingerprinting, and Privacy from Discarded Geometry

Zachary P. Bradshaw

arxiv:2607.13046 v1 · 2026-06-17 · cs.LG · cs.CR · math.RT · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6ALL7LFYF32SM37GTYHSL7W5U6}

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	2026-07-16T00:21:53.417951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f016bfacb82ef5266fe69e0f25fedda78256a2a0b4dbaf35c80c23cb7f83cf46

Aliases

arxiv: 2607.13046 · arxiv_version: 2607.13046v1 · doi: 10.48550/arxiv.2607.13046 · pith_short_12: 6ALL7LFYF32S · pith_short_16: 6ALL7LFYF32SM37G · pith_short_8: 6ALL7LFY

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/6ALL7LFYF32SM37GTYHSL7W5U6 \
  | 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: f016bfacb82ef5266fe69e0f25fedda78256a2a0b4dbaf35c80c23cb7f83cf46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30b691f4250d649ab3802e3d1544297cab0784738905d10e70ccee0f8c323351",
    "cross_cats_sorted": [
      "cs.CR",
      "math.RT",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-06-17T01:03:26Z",
    "title_canon_sha256": "cc36c9fff8679be4d2af8fadcebf3bb09b6100112d4cda48f3514a23b43f7e2b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.13046",
    "kind": "arxiv",
    "version": 1
  }
}