Pith Number

pith:U4IAH6NY

pith:2017:U4IAH6NYSYOKXJESZGLS64A2TH

not attested not anchored not stored refs pending

The Refinement Calculus of Reactive Systems

Iulia Dragomir, Stavros Tripakis, Viorel Preoteasa

arxiv:1710.03979 v2 · 2017-10-11 · cs.LO · cs.PL · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U4IAH6NYSYOKXJESZGLS64A2TH}

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	2026-05-18T00:24:04.028406Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a71003f9b8961caba492c9972f701a99ca103b7b97edd7baae3366d488d07197

Aliases

arxiv: 1710.03979 · arxiv_version: 1710.03979v2 · doi: 10.48550/arxiv.1710.03979 · pith_short_12: U4IAH6NYSYOK · pith_short_16: U4IAH6NYSYOKXJES · pith_short_8: U4IAH6NY

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/U4IAH6NYSYOKXJESZGLS64A2TH \
  | 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: a71003f9b8961caba492c9972f701a99ca103b7b97edd7baae3366d488d07197

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5eccd564faa89f82453f97c1882ae62a966f6d7dc72f49921ad34d42c62dfb1b",
    "cross_cats_sorted": [
      "cs.PL",
      "cs.SE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2017-10-11T09:41:59Z",
    "title_canon_sha256": "bbfd9ff4bf8819eea08f86b6a9654566abae9c81510ce20564ce709c08c974c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.03979",
    "kind": "arxiv",
    "version": 2
  }
}