Pith Number

pith:RJXRYXTF

pith:2018:RJXRYXTF5O4YBEDMASWDYNBUDN

not attested not anchored not stored refs pending

When You Should Use Lists in Haskell (Mostly, You Should Not)

Johannes Waldmann

arxiv:1808.08329 v1 · 2018-08-24 · 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{RJXRYXTF5O4YBEDMASWDYNBUDN}

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	2026-05-18T00:07:19.324874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a6f1c5e65ebb980906c04ac3c34341b4d53c9da366d26f090b28bc5b8ee286b

Aliases

arxiv: 1808.08329 · arxiv_version: 1808.08329v1 · doi: 10.48550/arxiv.1808.08329 · pith_short_12: RJXRYXTF5O4Y · pith_short_16: RJXRYXTF5O4YBEDM · pith_short_8: RJXRYXTF

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/RJXRYXTF5O4YBEDMASWDYNBUDN \
  | 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: 8a6f1c5e65ebb980906c04ac3c34341b4d53c9da366d26f090b28bc5b8ee286b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96816c9bef65e94fd1dfd45c4347aa0838197e8a788da53b25ccb8ba4ea0d38f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2018-08-24T22:41:46Z",
    "title_canon_sha256": "e817595cbe2331d8a44454b906f2edc414414ee7b80e6bba192fd899f41c0cce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.08329",
    "kind": "arxiv",
    "version": 1
  }
}