Pith Number

pith:34IOCVMS

pith:2026:34IOCVMSVDHGG3TMTS5SXLLUEG

not attested not anchored not stored refs pending

Extractable Memorization From First Principles

A. Feder Cooper, Christopher De Sa, Daniel E. Ho, Jamie Hayes, Lea Duesterwald, Marika Swanberg, Mark A. Lemley, Percy Liang

arxiv:2607.12649 v1 · 2026-07-14 · cs.LG · 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{34IOCVMSVDHGG3TMTS5SXLLUEG}

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	2026-07-15T01:22:08.810138Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df10e15592a8ce636e6c9cbb2bad7421ae0c372c4579a42e29289cd9589f09b4

Aliases

arxiv: 2607.12649 · arxiv_version: 2607.12649v1 · doi: 10.48550/arxiv.2607.12649 · pith_short_12: 34IOCVMSVDHG · pith_short_16: 34IOCVMSVDHGG3TM · pith_short_8: 34IOCVMS

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/34IOCVMSVDHGG3TMTS5SXLLUEG \
  | 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: df10e15592a8ce636e6c9cbb2bad7421ae0c372c4579a42e29289cd9589f09b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d90f0dfd1d749113ae09412bf941494c7b56cb82f500d41ce1d3fad945efa0f6",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-07-14T11:31:36Z",
    "title_canon_sha256": "1537b1ecdd037b420b2f4af43d383b223fe6f6449328c4dc683e5aa6c1e47019"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.12649",
    "kind": "arxiv",
    "version": 1
  }
}