Pith Number

pith:Q2SNHGHY

pith:2018:Q2SNHGHYFWRQ3CSZMXZDSAYB4G

not attested not anchored not stored refs pending

Tracing sharing in an imperative pure calculus (Extended Version)

Elena Zucca, Marco Servetto, Paola Giannini, Tim Richter

arxiv:1803.05838 v3 · 2018-03-15 · 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{Q2SNHGHYFWRQ3CSZMXZDSAYB4G}

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	2026-05-18T00:09:05.556445Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86a4d398f82da30d8a5965f2390301e1b1f91543e870bbb8edb1ba3e32692740

Aliases

arxiv: 1803.05838 · arxiv_version: 1803.05838v3 · doi: 10.48550/arxiv.1803.05838 · pith_short_12: Q2SNHGHYFWRQ · pith_short_16: Q2SNHGHYFWRQ3CSZ · pith_short_8: Q2SNHGHY

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/Q2SNHGHYFWRQ3CSZMXZDSAYB4G \
  | 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: 86a4d398f82da30d8a5965f2390301e1b1f91543e870bbb8edb1ba3e32692740

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3e0ad2e4f85dd7d92c0f84503860386da3c575231120e510cbd42aaccfc9395",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2018-03-15T16:16:35Z",
    "title_canon_sha256": "8725f9578c558850898d6191d6d9e453771535c446d0d6095854eb95ebd4983d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.05838",
    "kind": "arxiv",
    "version": 3
  }
}