Pith Number

pith:3CC3T7CK

pith:2017:3CC3T7CK73VWP4K2NFZEMJDJNJ

not attested not anchored not stored refs pending

Quantifying and Explaining Immutability in Scala

Ludvig Axelsson, Philipp Haller

arxiv:1704.03095 v1 · 2017-04-11 · 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{3CC3T7CK73VWP4K2NFZEMJDJNJ}

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	2026-05-18T00:46:33.608893Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d885b9fc4afeeb67f15a69724624696a74d86f2e1c80c6c04b655033f24e6865

Aliases

arxiv: 1704.03095 · arxiv_version: 1704.03095v1 · doi: 10.48550/arxiv.1704.03095 · pith_short_12: 3CC3T7CK73VW · pith_short_16: 3CC3T7CK73VWP4K2 · pith_short_8: 3CC3T7CK

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/3CC3T7CK73VWP4K2NFZEMJDJNJ \
  | 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: d885b9fc4afeeb67f15a69724624696a74d86f2e1c80c6c04b655033f24e6865

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5a86b82313155567cdf50c80f1a5d180a4349128c9523c0d6e9bc0e673f59d5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2017-04-11T00:43:25Z",
    "title_canon_sha256": "17d42fdf0520e99bfff74bae807ed7e9df30c597335fa33fd8f6ca14c38561c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.03095",
    "kind": "arxiv",
    "version": 1
  }
}