Pith Number

pith:QMA7ZBSV

pith:2015:QMA7ZBSV5DVJQORV7QFW66CBMB

not attested not anchored not stored refs pending

Controlled Owicki-Gries Concurrency: Reasoning about the Preemptible eChronos Embedded Operating System

Carroll Morgan (NICTA, Corey Lewis (NICTA), June Andronick (NICTA, UNSW)

arxiv:1511.04170 v1 · 2015-11-13 · cs.LO · cs.OS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QMA7ZBSV5DVJQORV7QFW66CBMB}

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	2026-05-18T01:26:59.521912Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8301fc8655e8ea983a35fc0b6f78416066b4b64add685e6156b85603f894bb00

Aliases

arxiv: 1511.04170 · arxiv_version: 1511.04170v1 · doi: 10.48550/arxiv.1511.04170 · pith_short_12: QMA7ZBSV5DVJ · pith_short_16: QMA7ZBSV5DVJQORV · pith_short_8: QMA7ZBSV

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/QMA7ZBSV5DVJQORV7QFW66CBMB \
  | 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: 8301fc8655e8ea983a35fc0b6f78416066b4b64add685e6156b85603f894bb00

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "985033eb328268614c46051fd974258e2244387083f05dbc67b5cc6a6c345387",
    "cross_cats_sorted": [
      "cs.OS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2015-11-13T06:27:48Z",
    "title_canon_sha256": "d4dba8a00ff255e13fec004498c24e3053e9b1ba8ef9f4cf264b6a8fa5276786"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.04170",
    "kind": "arxiv",
    "version": 1
  }
}