Pith Number

pith:B3RCWUR7

pith:2026:B3RCWUR7CHPLCDPQ6LVTNGZQV4

not attested not anchored not stored refs pending

Self-Harness: Harnesses That Improve Themselves

Chen Zhang, Hangfan Zhang, Kangcong Li, Lei Bai, Shao Zhang, Shuyue Hu, Yang Chen, Yiqun Zhang

arxiv:2606.09498 v1 · 2026-06-08 · 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{B3RCWUR7CHPLCDPQ6LVTNGZQV4}

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	2026-06-09T02:08:51.861393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ee22b523f11deb10df0f2eb369b30af0d197287e5d32837f56fb2a896a7b76c

Aliases

arxiv: 2606.09498 · arxiv_version: 2606.09498v1 · doi: 10.48550/arxiv.2606.09498 · pith_short_12: B3RCWUR7CHPL · pith_short_16: B3RCWUR7CHPLCDPQ · pith_short_8: B3RCWUR7

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/B3RCWUR7CHPLCDPQ6LVTNGZQV4 \
  | 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: 0ee22b523f11deb10df0f2eb369b30af0d197287e5d32837f56fb2a896a7b76c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d05b61201d6640d04d36bfedffd4e44c004926bbe373675cee6b59d56be9f82",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-06-08T13:50:23Z",
    "title_canon_sha256": "aa9bc3b9690b16a1de476de300923a3da7dbae070760d3d849f6a7b199461f86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.09498",
    "kind": "arxiv",
    "version": 1
  }
}