Pith Number

pith:3R7NCQSN

pith:2026:3R7NCQSNTS2KF5B4SBVFNT4H42

not attested not anchored not stored refs pending

CAPRI: Contract-Aware Proof Repair for Isabelle

Augusto Sampaio, Gabriel Leite, Jim Woodcock, Ran Wei

arxiv:2608.13459 v1 · 2026-08-13 · cs.SE · cs.AI · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3R7NCQSNTS2KF5B4SBVFNT4H42}

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	2026-08-14T01:04:29.100287Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc7ed1424d9cb4a2f43c906a56cf87e6ab2e2cfbb16f78ec4d8341d0e8bf8d06

Aliases

arxiv: 2608.13459 · arxiv_version: 2608.13459v1 · doi: 10.48550/arxiv.2608.13459 · pith_short_12: 3R7NCQSNTS2K · pith_short_16: 3R7NCQSNTS2KF5B4 · pith_short_8: 3R7NCQSN

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/3R7NCQSNTS2KF5B4SBVFNT4H42 \
  | 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: dc7ed1424d9cb4a2f43c906a56cf87e6ab2e2cfbb16f78ec4d8341d0e8bf8d06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3cac4ae13876df28f88d339bbe5bb1662e1e258ceac118b3f69a04b25e9d588",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2026-08-13T16:43:44Z",
    "title_canon_sha256": "d726b8414b0df412ceef7d8f20ac97176902b6cc599eeb636d7ddfd8c9028ed4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.13459",
    "kind": "arxiv",
    "version": 1
  }
}