Pith Number

pith:4ZRFB6F7

pith:2019:4ZRFB6F7BGTA7PUFEPBZN342XA

not attested not anchored not stored refs pending

Investigating Compilation Errors of Students Learning Haskell

Boldizs\'ar N\'emeth (E\"otv\"os Lor\'and University), Erina Makihara (Nara Institute of Science, Eunjong Choi (Nara Institute of Science, Hajimu Iida (Nara Institute of Science, Technology)

arxiv:1906.11450 v1 · 2019-06-27 · 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{4ZRFB6F7BGTA7PUFEPBZN342XA}

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	2026-05-17T23:42:07.014733Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e66250f8bf09a60fbe8523c396ef9ab81eee2ea32b7cb829b3e20323408ec94b

Aliases

arxiv: 1906.11450 · arxiv_version: 1906.11450v1 · doi: 10.48550/arxiv.1906.11450 · pith_short_12: 4ZRFB6F7BGTA · pith_short_16: 4ZRFB6F7BGTA7PUF · pith_short_8: 4ZRFB6F7

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/4ZRFB6F7BGTA7PUFEPBZN342XA \
  | 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: e66250f8bf09a60fbe8523c396ef9ab81eee2ea32b7cb829b3e20323408ec94b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c2770e90c3aad19db66407a3cbf7c8fb86ef18d5285878adbcdea14c0700a94",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2019-06-27T06:23:20Z",
    "title_canon_sha256": "6fd82de69a1856b99d782a2c6289affa67a0460698d3dd2931d3ed90a96e9e19"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.11450",
    "kind": "arxiv",
    "version": 1
  }
}