Pith Number

pith:GE7T5LSL

pith:2011:GE7T5LSLG3BODASGJH7RG6Q6UK

not attested not anchored not stored refs pending

Semantic Predicate Types and Approximation for Class-based Object Oriented Programming

Reuben N. S. Rowe, Steffen van Bakel

arxiv:1109.4618 v1 · 2011-09-21 · cs.LO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GE7T5LSLG3BODASGJH7RG6Q6UK}

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	2026-05-18T04:12:34.324757Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

313f3eae4b36c2e1824649ff137a1ea2acbd78f2dcc18becb98aaf2da358ff42

Aliases

arxiv: 1109.4618 · arxiv_version: 1109.4618v1 · doi: 10.48550/arxiv.1109.4618 · pith_short_12: GE7T5LSLG3BO · pith_short_16: GE7T5LSLG3BODASG · pith_short_8: GE7T5LSL

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/GE7T5LSLG3BODASGJH7RG6Q6UK \
  | 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: 313f3eae4b36c2e1824649ff137a1ea2acbd78f2dcc18becb98aaf2da358ff42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fdc7a8652f10ba2408d918a4254c4bbe6daa42b172f614143db851790feb450c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2011-09-21T19:26:52Z",
    "title_canon_sha256": "53bbfc9df92652a61bd99f30f65380ea0b1c152de87769f75bef5070924ed21d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.4618",
    "kind": "arxiv",
    "version": 1
  }
}