Pith Number

pith:27T4U5RN

pith:2019:27T4U5RN6Z6WB5UQU7I6KSAGRN

not attested not anchored not stored refs pending

Intrinsically-Typed Mechanized Semantics for Session Types

Peter Thiemann

arxiv:1908.02940 v1 · 2019-08-08 · 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{27T4U5RN6Z6WB5UQU7I6KSAGRN}

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	2026-07-04T23:52:25.138725Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7e7ca762df67d60f690a7d1e548068b52b550b62f26519b46b3e4ca349fe904

Aliases

arxiv: 1908.02940 · arxiv_version: 1908.02940v1 · doi: 10.48550/arxiv.1908.02940 · pith_short_12: 27T4U5RN6Z6W · pith_short_16: 27T4U5RN6Z6WB5UQ · pith_short_8: 27T4U5RN

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/27T4U5RN6Z6WB5UQU7I6KSAGRN \
  | 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: d7e7ca762df67d60f690a7d1e548068b52b550b62f26519b46b3e4ca349fe904

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be856f2205b983ba108eca2500a527fbe1594a530a6434687c8c556e114ebb5f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2019-08-08T05:52:36Z",
    "title_canon_sha256": "4d352589656a519c442a29c481f4e46707f6cf9badea12b10c9d5b86f960acf5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.02940",
    "kind": "arxiv",
    "version": 1
  }
}