Pith Number

pith:YUJ7IGCA

pith:2026:YUJ7IGCANV3JE2WQOG7XVZQSQ7

not attested not anchored not stored refs pending

DeCo: A Core Calculus for Incremental Functional Programming with Generic Data Types

David Richter, Mira Mezini, Timon B\"ohler, Tobias Reinhard

arxiv:2602.20866 v1 · 2026-02-24 · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YUJ7IGCANV3JE2WQOG7XVZQSQ7}

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	2026-05-26T01:03:26.129971Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c513f418406d76926ad071bf7ae61287c2b42b1e37bc572c5d1547c93baa4ac1

Aliases

arxiv: 2602.20866 · arxiv_version: 2602.20866v1 · doi: 10.48550/arxiv.2602.20866 · pith_short_12: YUJ7IGCANV3J · pith_short_16: YUJ7IGCANV3JE2WQ · pith_short_8: YUJ7IGCA

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/YUJ7IGCANV3JE2WQOG7XVZQSQ7 \
  | 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: c513f418406d76926ad071bf7ae61287c2b42b1e37bc572c5d1547c93baa4ac1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "179c17ba483bbb878b0dadb3f8889968442d5f65635161915937112762786c96",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2026-02-24T13:10:51Z",
    "title_canon_sha256": "5d5a6d7bf6b5fd99652f7033b589d1a43d6e583838ebb0460b35e5e15079b758"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.20866",
    "kind": "arxiv",
    "version": 1
  }
}