Pith Number

pith:M25THN5I

pith:2019:M25THN5IRBCP7T7OXL7M2WARQZ

not attested not anchored not stored refs pending

Effective Definability of the Reachability Relation in Timed Automata

James Worrell, Karin Quaas, Mahsa Shirmohammadi, Martin Fr\"anzle

arxiv:1903.09773 v1 · 2019-03-23 · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M25THN5IRBCP7T7OXL7M2WARQZ}

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	2026-05-17T23:50:35.558114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66bb33b7a88844ffcfeebafecd58118655f90816adde6d14bdd703c3663d3830

Aliases

arxiv: 1903.09773 · arxiv_version: 1903.09773v1 · doi: 10.48550/arxiv.1903.09773 · pith_short_12: M25THN5IRBCP · pith_short_16: M25THN5IRBCP7T7O · pith_short_8: M25THN5I

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/M25THN5IRBCP7T7OXL7M2WARQZ \
  | 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: 66bb33b7a88844ffcfeebafecd58118655f90816adde6d14bdd703c3663d3830

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be572dbbfcda2810c3c8259d03ebeec55ba7fca8efeb929d46c7c2491dce78a6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2019-03-23T06:53:26Z",
    "title_canon_sha256": "9b682ed111f61a09d79faacc027909074a50051bc908590d425e0139668b2ed0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.09773",
    "kind": "arxiv",
    "version": 1
  }
}