Pith Number

pith:UZ2NI3VU

pith:2020:UZ2NI3VU7RRCHUKLVTD3IWGRH4

not attested not anchored not stored refs pending

Igloo: Soundly Linking Compositional Refinement and Separation Logic for Distributed System Verification

Christoph Sprenger, David Basin, Felix A. Wolf, Marco Eilers, Martin Clochard, Peter M\"uller, Tobias Klenze

arxiv:2010.04749 v1 · 2020-10-09 · 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{UZ2NI3VU7RRCHUKLVTD3IWGRH4}

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	2026-07-05T01:41:58.817873Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a674d46eb4fc6223d14bacc7b458d13f0960d725acb5cfaff267785f67421c76

Aliases

arxiv: 2010.04749 · arxiv_version: 2010.04749v1 · doi: 10.48550/arxiv.2010.04749 · pith_short_12: UZ2NI3VU7RRC · pith_short_16: UZ2NI3VU7RRCHUKL · pith_short_8: UZ2NI3VU

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/UZ2NI3VU7RRCHUKLVTD3IWGRH4 \
  | 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: a674d46eb4fc6223d14bacc7b458d13f0960d725acb5cfaff267785f67421c76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88ccc72172287d2a100e4e1cc996e618114f2dc5b59b2bda16f47a5e6bfe8722",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2020-10-09T18:10:49Z",
    "title_canon_sha256": "bcc05aeb18b173c0a53b894bea33688f67dc47f36789ae361343284e65a60125"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.04749",
    "kind": "arxiv",
    "version": 1
  }
}