{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:NKOQMFRSIZOQID256KBGD2X7TC","short_pith_number":"pith:NKOQMFRS","canonical_record":{"source":{"id":"1108.3426","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2011-08-17T09:00:56Z","cross_cats_sorted":["cs.CE","cs.ET","q-bio.QM"],"title_canon_sha256":"91a5d2a6595caed4e9de54fdf60be05913810cd6d0e6f18b88567ce82620caa5","abstract_canon_sha256":"6116aff97e5edfb1b44e81aef568a2e6fb0266f897d85120c7155b022717804e"},"schema_version":"1.0"},"canonical_sha256":"6a9d061632465d040f5df28261eaff98b220f5bbf7e774c528123a0275574971","source":{"kind":"arxiv","id":"1108.3426","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.3426","created_at":"2026-05-18T04:15:17Z"},{"alias_kind":"arxiv_version","alias_value":"1108.3426v1","created_at":"2026-05-18T04:15:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.3426","created_at":"2026-05-18T04:15:17Z"},{"alias_kind":"pith_short_12","alias_value":"NKOQMFRSIZOQ","created_at":"2026-05-18T12:26:37Z"},{"alias_kind":"pith_short_16","alias_value":"NKOQMFRSIZOQID25","created_at":"2026-05-18T12:26:37Z"},{"alias_kind":"pith_short_8","alias_value":"NKOQMFRS","created_at":"2026-05-18T12:26:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:NKOQMFRSIZOQID256KBGD2X7TC","target":"record","payload":{"canonical_record":{"source":{"id":"1108.3426","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2011-08-17T09:00:56Z","cross_cats_sorted":["cs.CE","cs.ET","q-bio.QM"],"title_canon_sha256":"91a5d2a6595caed4e9de54fdf60be05913810cd6d0e6f18b88567ce82620caa5","abstract_canon_sha256":"6116aff97e5edfb1b44e81aef568a2e6fb0266f897d85120c7155b022717804e"},"schema_version":"1.0"},"canonical_sha256":"6a9d061632465d040f5df28261eaff98b220f5bbf7e774c528123a0275574971","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:15:17.881941Z","signature_b64":"mRTUvvxI7Nl30Gc+4rvXy7uxfYxq1rdtCvpyz6+CZMI5+1zDd8Lgufx0ua5mlHkWAeY+pQgAI93wnFKs6jC+DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6a9d061632465d040f5df28261eaff98b220f5bbf7e774c528123a0275574971","last_reissued_at":"2026-05-18T04:15:17.881367Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:15:17.881367Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1108.3426","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:15:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3aJSbBhc0lz4kW4kHfDJigkKxT8etvqZ/9MOdUaO0syeRZrI/F0m1mWjhdbhK0AGL73d3QN0LuugsjwkMRE4CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T04:20:50.034103Z"},"content_sha256":"b0a5eeba7c6e456906b2a9b4438a47709ae9a2a0c71d33d83c0bb374f0e40022","schema_version":"1.0","event_id":"sha256:b0a5eeba7c6e456906b2a9b4438a47709ae9a2a0c71d33d83c0bb374f0e40022"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:NKOQMFRSIZOQID256KBGD2X7TC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Spatial Calculus of Wrapped Compartments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CE","cs.ET","q-bio.QM"],"primary_cat":"cs.LO","authors_text":"Angelo Troina, Cristina Calcagno, Eva Sciacca, Ferruccio Damiani, Livio Bioglio, Mario Coppo, Salvatore Spinella","submitted_at":"2011-08-17T09:00:56Z","abstract_excerpt":"The Calculus of Wrapped Compartments (CWC) is a recently proposed modelling language for the representation and simulation of biological systems behaviour. Although CWC has no explicit structure modelling a spatial geometry, its compartment labelling feature can be exploited to model various examples of spatial interactions in a natural way. However, specifying large networks of compartments may require a long modelling phase. In this work we present a surface language for CWC that provides basic constructs for modelling spatial interactions. These constructs can be compiled away to obtain a s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.3426","kind":"arxiv","version":1},"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":"2026-05-18T04:15:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SLWSUi+uZw761UEPLQnb1X+Wb8EKhW9bc83xLK+TVAwJPtyILyYhEf3cb0VddANettVmNIgRkcORBsA1BRGNBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T04:20:50.034466Z"},"content_sha256":"947ed4cf527f949c9ff122cb99020a19b9bea2e32584f5644d28947fe32ba45b","schema_version":"1.0","event_id":"sha256:947ed4cf527f949c9ff122cb99020a19b9bea2e32584f5644d28947fe32ba45b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NKOQMFRSIZOQID256KBGD2X7TC/bundle.json","state_url":"https://pith.science/pith/NKOQMFRSIZOQID256KBGD2X7TC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NKOQMFRSIZOQID256KBGD2X7TC/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":"2026-06-04T04:20:50Z","links":{"resolver":"https://pith.science/pith/NKOQMFRSIZOQID256KBGD2X7TC","bundle":"https://pith.science/pith/NKOQMFRSIZOQID256KBGD2X7TC/bundle.json","state":"https://pith.science/pith/NKOQMFRSIZOQID256KBGD2X7TC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NKOQMFRSIZOQID256KBGD2X7TC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:NKOQMFRSIZOQID256KBGD2X7TC","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":"6116aff97e5edfb1b44e81aef568a2e6fb0266f897d85120c7155b022717804e","cross_cats_sorted":["cs.CE","cs.ET","q-bio.QM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2011-08-17T09:00:56Z","title_canon_sha256":"91a5d2a6595caed4e9de54fdf60be05913810cd6d0e6f18b88567ce82620caa5"},"schema_version":"1.0","source":{"id":"1108.3426","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.3426","created_at":"2026-05-18T04:15:17Z"},{"alias_kind":"arxiv_version","alias_value":"1108.3426v1","created_at":"2026-05-18T04:15:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.3426","created_at":"2026-05-18T04:15:17Z"},{"alias_kind":"pith_short_12","alias_value":"NKOQMFRSIZOQ","created_at":"2026-05-18T12:26:37Z"},{"alias_kind":"pith_short_16","alias_value":"NKOQMFRSIZOQID25","created_at":"2026-05-18T12:26:37Z"},{"alias_kind":"pith_short_8","alias_value":"NKOQMFRS","created_at":"2026-05-18T12:26:37Z"}],"graph_snapshots":[{"event_id":"sha256:947ed4cf527f949c9ff122cb99020a19b9bea2e32584f5644d28947fe32ba45b","target":"graph","created_at":"2026-05-18T04:15:17Z","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":"The Calculus of Wrapped Compartments (CWC) is a recently proposed modelling language for the representation and simulation of biological systems behaviour. Although CWC has no explicit structure modelling a spatial geometry, its compartment labelling feature can be exploited to model various examples of spatial interactions in a natural way. However, specifying large networks of compartments may require a long modelling phase. In this work we present a surface language for CWC that provides basic constructs for modelling spatial interactions. These constructs can be compiled away to obtain a s","authors_text":"Angelo Troina, Cristina Calcagno, Eva Sciacca, Ferruccio Damiani, Livio Bioglio, Mario Coppo, Salvatore Spinella","cross_cats":["cs.CE","cs.ET","q-bio.QM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2011-08-17T09:00:56Z","title":"A Spatial Calculus of Wrapped Compartments"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.3426","kind":"arxiv","version":1},"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:b0a5eeba7c6e456906b2a9b4438a47709ae9a2a0c71d33d83c0bb374f0e40022","target":"record","created_at":"2026-05-18T04:15:17Z","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":"6116aff97e5edfb1b44e81aef568a2e6fb0266f897d85120c7155b022717804e","cross_cats_sorted":["cs.CE","cs.ET","q-bio.QM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2011-08-17T09:00:56Z","title_canon_sha256":"91a5d2a6595caed4e9de54fdf60be05913810cd6d0e6f18b88567ce82620caa5"},"schema_version":"1.0","source":{"id":"1108.3426","kind":"arxiv","version":1}},"canonical_sha256":"6a9d061632465d040f5df28261eaff98b220f5bbf7e774c528123a0275574971","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6a9d061632465d040f5df28261eaff98b220f5bbf7e774c528123a0275574971","first_computed_at":"2026-05-18T04:15:17.881367Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:15:17.881367Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mRTUvvxI7Nl30Gc+4rvXy7uxfYxq1rdtCvpyz6+CZMI5+1zDd8Lgufx0ua5mlHkWAeY+pQgAI93wnFKs6jC+DA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:15:17.881941Z","signed_message":"canonical_sha256_bytes"},"source_id":"1108.3426","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b0a5eeba7c6e456906b2a9b4438a47709ae9a2a0c71d33d83c0bb374f0e40022","sha256:947ed4cf527f949c9ff122cb99020a19b9bea2e32584f5644d28947fe32ba45b"],"state_sha256":"288f93b8b00c14cd65bce9e0554f61622c2d36e7f195e8137a3cb562ef0d9ca3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wrCb2NUmPRQQjVQiW3l/bndtYADkqAvAbdHn1JSKnI7Enp2mrU7QwRx9ieQq9adko+k1JSfkHcV8FnKUihf2Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T04:20:50.036649Z","bundle_sha256":"3c74927293854b236dc9066ab2434fc641865b28caf8183229cb18805f8eaf43"}}