Pith Number

pith:W3Q3A3CR

pith:2017:W3Q3A3CRCFTZIJCOETDQU7YNN7

not attested not anchored not stored refs pending

Validity-Guided Synthesis of Reactive Systems from Assume-Guarantee Contracts

Andreas Katis, Andrew Gacek, Arie Gurfinkel, Grigory Fedyukovich, Huajun Guo, John Backes, Michael W. Whalen

arxiv:1709.04986 v2 · 2017-09-14 · 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{W3Q3A3CRCFTZIJCOETDQU7YNN7}

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	2026-05-18T00:20:24.311067Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6e1b06c51116794244e24c70a7f0d6fd2fb3d8e93a5d80c3b8dbc1f242fbdfc

Aliases

arxiv: 1709.04986 · arxiv_version: 1709.04986v2 · doi: 10.48550/arxiv.1709.04986 · pith_short_12: W3Q3A3CRCFTZ · pith_short_16: W3Q3A3CRCFTZIJCO · pith_short_8: W3Q3A3CR

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/W3Q3A3CRCFTZIJCOETDQU7YNN7 \
  | 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: b6e1b06c51116794244e24c70a7f0d6fd2fb3d8e93a5d80c3b8dbc1f242fbdfc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45c544269ae517bac9c599b92e7e3e225742d57610868878be887d6c6d0781e6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2017-09-14T21:34:25Z",
    "title_canon_sha256": "a43eaed092df7f946ddcdf858d9906a804750f76f831122eb4f4e41e19ec278b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.04986",
    "kind": "arxiv",
    "version": 2
  }
}