{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:J2OWRMGMPRVS2AI4GO7QZ4FIWV","short_pith_number":"pith:J2OWRMGM","canonical_record":{"source":{"id":"1304.4104","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.FL","submitted_at":"2013-04-15T14:00:08Z","cross_cats_sorted":[],"title_canon_sha256":"2a83028a7367a7894e7c1013837c8295a85f39852d8fb6f109e6025ef932a4ac","abstract_canon_sha256":"ff9c707d8ec2b28c38acb5ac7ad3e16e8650cd46fb02218c91b7f3afe10a72fc"},"schema_version":"1.0"},"canonical_sha256":"4e9d68b0cc7c6b2d011c33bf0cf0a8b5504b0814f2d511e5a9f183b317d3d5ce","source":{"kind":"arxiv","id":"1304.4104","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.4104","created_at":"2026-05-18T02:49:46Z"},{"alias_kind":"arxiv_version","alias_value":"1304.4104v2","created_at":"2026-05-18T02:49:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.4104","created_at":"2026-05-18T02:49:46Z"},{"alias_kind":"pith_short_12","alias_value":"J2OWRMGMPRVS","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"J2OWRMGMPRVS2AI4","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"J2OWRMGM","created_at":"2026-05-18T12:27:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:J2OWRMGMPRVS2AI4GO7QZ4FIWV","target":"record","payload":{"canonical_record":{"source":{"id":"1304.4104","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.FL","submitted_at":"2013-04-15T14:00:08Z","cross_cats_sorted":[],"title_canon_sha256":"2a83028a7367a7894e7c1013837c8295a85f39852d8fb6f109e6025ef932a4ac","abstract_canon_sha256":"ff9c707d8ec2b28c38acb5ac7ad3e16e8650cd46fb02218c91b7f3afe10a72fc"},"schema_version":"1.0"},"canonical_sha256":"4e9d68b0cc7c6b2d011c33bf0cf0a8b5504b0814f2d511e5a9f183b317d3d5ce","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:49:46.090165Z","signature_b64":"4GnYzltX1AwHaG3wEisWoJoRKV54yxF5jDw2fHwLBdvjDY6spOlChxgDxBUV7r6ypAlLUvsnXSRQVfAp3HhdDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4e9d68b0cc7c6b2d011c33bf0cf0a8b5504b0814f2d511e5a9f183b317d3d5ce","last_reissued_at":"2026-05-18T02:49:46.089776Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:49:46.089776Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1304.4104","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:49:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wIZTnrBd4OfUvx+kbPFkQmMqPOAnkuGz/A7gLHoUk+HRc38T/DUIwR9owOA/sCO7BaP6hnLMzTvKLS1vffdwDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T00:26:16.093446Z"},"content_sha256":"09d93544cf085a3686b35b45fd753bfe02bd32ea1db88a889ba5fb0d102e9fd3","schema_version":"1.0","event_id":"sha256:09d93544cf085a3686b35b45fd753bfe02bd32ea1db88a889ba5fb0d102e9fd3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:J2OWRMGMPRVS2AI4GO7QZ4FIWV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Decidability of Weak Simulation on One-counter Nets","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.FL","authors_text":"Patrick Totzke, Piotr Hofman, Richard Mayr","submitted_at":"2013-04-15T14:00:08Z","abstract_excerpt":"One-counter nets (OCN) are Petri nets with exactly one unbounded place. They are equivalent to a subclass of one-counter automata with only a weak test for zero. We show that weak simulation preorder is decidable for OCN and that weak simulation approximants do not converge at level omega, but only at omega^2. In contrast, other semantic relations like weak bisimulation are undecidable for OCN, and so are weak (and strong) trace inclusion."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.4104","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:49:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Jm0MCh/XHS91TTcUtIwBYSqB+cYecux2bUP1sWYc96fUYkRWuLP6LqyzkRCVW0RPzEe77tArbiPJHSyA+0CLAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T00:26:16.094025Z"},"content_sha256":"19fa8151ea40b6d371f2cdf6561083fc9f6d4d42d9e899d887b112eb2396f169","schema_version":"1.0","event_id":"sha256:19fa8151ea40b6d371f2cdf6561083fc9f6d4d42d9e899d887b112eb2396f169"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/J2OWRMGMPRVS2AI4GO7QZ4FIWV/bundle.json","state_url":"https://pith.science/pith/J2OWRMGMPRVS2AI4GO7QZ4FIWV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/J2OWRMGMPRVS2AI4GO7QZ4FIWV/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-31T00:26:16Z","links":{"resolver":"https://pith.science/pith/J2OWRMGMPRVS2AI4GO7QZ4FIWV","bundle":"https://pith.science/pith/J2OWRMGMPRVS2AI4GO7QZ4FIWV/bundle.json","state":"https://pith.science/pith/J2OWRMGMPRVS2AI4GO7QZ4FIWV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/J2OWRMGMPRVS2AI4GO7QZ4FIWV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:J2OWRMGMPRVS2AI4GO7QZ4FIWV","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"ff9c707d8ec2b28c38acb5ac7ad3e16e8650cd46fb02218c91b7f3afe10a72fc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.FL","submitted_at":"2013-04-15T14:00:08Z","title_canon_sha256":"2a83028a7367a7894e7c1013837c8295a85f39852d8fb6f109e6025ef932a4ac"},"schema_version":"1.0","source":{"id":"1304.4104","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.4104","created_at":"2026-05-18T02:49:46Z"},{"alias_kind":"arxiv_version","alias_value":"1304.4104v2","created_at":"2026-05-18T02:49:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.4104","created_at":"2026-05-18T02:49:46Z"},{"alias_kind":"pith_short_12","alias_value":"J2OWRMGMPRVS","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"J2OWRMGMPRVS2AI4","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"J2OWRMGM","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:19fa8151ea40b6d371f2cdf6561083fc9f6d4d42d9e899d887b112eb2396f169","target":"graph","created_at":"2026-05-18T02:49:46Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"One-counter nets (OCN) are Petri nets with exactly one unbounded place. They are equivalent to a subclass of one-counter automata with only a weak test for zero. We show that weak simulation preorder is decidable for OCN and that weak simulation approximants do not converge at level omega, but only at omega^2. In contrast, other semantic relations like weak bisimulation are undecidable for OCN, and so are weak (and strong) trace inclusion.","authors_text":"Patrick Totzke, Piotr Hofman, Richard Mayr","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.FL","submitted_at":"2013-04-15T14:00:08Z","title":"Decidability of Weak Simulation on One-counter Nets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.4104","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:09d93544cf085a3686b35b45fd753bfe02bd32ea1db88a889ba5fb0d102e9fd3","target":"record","created_at":"2026-05-18T02:49:46Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"ff9c707d8ec2b28c38acb5ac7ad3e16e8650cd46fb02218c91b7f3afe10a72fc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.FL","submitted_at":"2013-04-15T14:00:08Z","title_canon_sha256":"2a83028a7367a7894e7c1013837c8295a85f39852d8fb6f109e6025ef932a4ac"},"schema_version":"1.0","source":{"id":"1304.4104","kind":"arxiv","version":2}},"canonical_sha256":"4e9d68b0cc7c6b2d011c33bf0cf0a8b5504b0814f2d511e5a9f183b317d3d5ce","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4e9d68b0cc7c6b2d011c33bf0cf0a8b5504b0814f2d511e5a9f183b317d3d5ce","first_computed_at":"2026-05-18T02:49:46.089776Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:49:46.089776Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4GnYzltX1AwHaG3wEisWoJoRKV54yxF5jDw2fHwLBdvjDY6spOlChxgDxBUV7r6ypAlLUvsnXSRQVfAp3HhdDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:49:46.090165Z","signed_message":"canonical_sha256_bytes"},"source_id":"1304.4104","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:09d93544cf085a3686b35b45fd753bfe02bd32ea1db88a889ba5fb0d102e9fd3","sha256:19fa8151ea40b6d371f2cdf6561083fc9f6d4d42d9e899d887b112eb2396f169"],"state_sha256":"57f9ac6e29b9dc64d59474316df2842322544116066a0c5775e5a06ef09e6def"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K7MC4kA8HLIiGQNh96j+FUDK6pMxXYYTDk0DZz3TuPEmuajVjqJxILFSCStclqPKY2nfVYHElgQWKjxiSr21Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T00:26:16.096751Z","bundle_sha256":"8d1c85b681a03df9a6988183a6971a03c2d3c54ac4c55b7f635520864ed96a9b"}}