{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:CTCO5AOKGSCTG7UD4RW5FBIEUA","short_pith_number":"pith:CTCO5AOK","canonical_record":{"source":{"id":"1507.06260","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2015-07-22T17:20:31Z","cross_cats_sorted":[],"title_canon_sha256":"ffb374b607f4084515d4b89824f8c63ac235b0fad2880cf0d23c217445ec3f5e","abstract_canon_sha256":"92868957d19878c81c5f17986e651bffdff1830bf5b37c9e1cbd3c1c83bc1d66"},"schema_version":"1.0"},"canonical_sha256":"14c4ee81ca3485337e83e46dd28504a029ea0e553e5eb362e3a3719415ee81fc","source":{"kind":"arxiv","id":"1507.06260","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.06260","created_at":"2026-05-18T01:36:26Z"},{"alias_kind":"arxiv_version","alias_value":"1507.06260v1","created_at":"2026-05-18T01:36:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.06260","created_at":"2026-05-18T01:36:26Z"},{"alias_kind":"pith_short_12","alias_value":"CTCO5AOKGSCT","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_16","alias_value":"CTCO5AOKGSCTG7UD","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_8","alias_value":"CTCO5AOK","created_at":"2026-05-18T12:29:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:CTCO5AOKGSCTG7UD4RW5FBIEUA","target":"record","payload":{"canonical_record":{"source":{"id":"1507.06260","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2015-07-22T17:20:31Z","cross_cats_sorted":[],"title_canon_sha256":"ffb374b607f4084515d4b89824f8c63ac235b0fad2880cf0d23c217445ec3f5e","abstract_canon_sha256":"92868957d19878c81c5f17986e651bffdff1830bf5b37c9e1cbd3c1c83bc1d66"},"schema_version":"1.0"},"canonical_sha256":"14c4ee81ca3485337e83e46dd28504a029ea0e553e5eb362e3a3719415ee81fc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:36:26.296692Z","signature_b64":"J7HzdSLdo83ERPJUXUqRu/hubIkFe/KWs2aC9IGXbBLC0TUiOFHvr52ueqEBbDULsAfDqo7a999qWa6YAy8HBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"14c4ee81ca3485337e83e46dd28504a029ea0e553e5eb362e3a3719415ee81fc","last_reissued_at":"2026-05-18T01:36:26.296220Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:36:26.296220Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1507.06260","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":"2026-05-18T01:36:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pC0jc4DXJRuWyBXXn5nX2/SQ26a+kdDeIhlSifzX77vJHG90UZcFFkuORtID69exHTRcG3dGGNj02tNbWWNNCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T22:34:14.892803Z"},"content_sha256":"f6a4facdb0884423fe4563232943632ce214a84dfaefc312bc2fd15242d84183","schema_version":"1.0","event_id":"sha256:f6a4facdb0884423fe4563232943632ce214a84dfaefc312bc2fd15242d84183"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:CTCO5AOKGSCTG7UD4RW5FBIEUA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Requirements Problem and Solution Concepts for Adaptive Systems Engineering, and their Relationship to Mathematical Optimisation, Decision Analysis, and Expected Utility Theory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.SE","authors_text":"Ivan Jureta","submitted_at":"2015-07-22T17:20:31Z","abstract_excerpt":"Requirements Engineering (RE) focuses on eliciting, modelling, and analyzing the requirements and environment of a system-to-be in order to design its specification. The design of the specification, usually called the Requirements Problem (RP), is a complex problem solving task, as it involves, for each new system-to-be, the discovery and exploration of, and decision making in, new and ill-defined problem and solution spaces. The default RP in RE is to design a specification of the system-to-be which (i) is consistent with given requirements and conditions of its environment, and (ii) together"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.06260","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":"2026-05-18T01:36:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lAkXGzCHdSLkpPhvdZutwa4ABEAAA4TrDn4j2S+uZ3yX7Shn1znE7vCRebAdLHVhqS0zkyuqc6i0w6qZijx1BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T22:34:14.893145Z"},"content_sha256":"8eb6742ba651dbf43a291d2650caab05c8e566efa2f7b7b27ccf1430a9d26446","schema_version":"1.0","event_id":"sha256:8eb6742ba651dbf43a291d2650caab05c8e566efa2f7b7b27ccf1430a9d26446"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CTCO5AOKGSCTG7UD4RW5FBIEUA/bundle.json","state_url":"https://pith.science/pith/CTCO5AOKGSCTG7UD4RW5FBIEUA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CTCO5AOKGSCTG7UD4RW5FBIEUA/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":"2026-06-25T22:34:14Z","links":{"resolver":"https://pith.science/pith/CTCO5AOKGSCTG7UD4RW5FBIEUA","bundle":"https://pith.science/pith/CTCO5AOKGSCTG7UD4RW5FBIEUA/bundle.json","state":"https://pith.science/pith/CTCO5AOKGSCTG7UD4RW5FBIEUA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CTCO5AOKGSCTG7UD4RW5FBIEUA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:CTCO5AOKGSCTG7UD4RW5FBIEUA","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":"92868957d19878c81c5f17986e651bffdff1830bf5b37c9e1cbd3c1c83bc1d66","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2015-07-22T17:20:31Z","title_canon_sha256":"ffb374b607f4084515d4b89824f8c63ac235b0fad2880cf0d23c217445ec3f5e"},"schema_version":"1.0","source":{"id":"1507.06260","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.06260","created_at":"2026-05-18T01:36:26Z"},{"alias_kind":"arxiv_version","alias_value":"1507.06260v1","created_at":"2026-05-18T01:36:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.06260","created_at":"2026-05-18T01:36:26Z"},{"alias_kind":"pith_short_12","alias_value":"CTCO5AOKGSCT","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_16","alias_value":"CTCO5AOKGSCTG7UD","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_8","alias_value":"CTCO5AOK","created_at":"2026-05-18T12:29:17Z"}],"graph_snapshots":[{"event_id":"sha256:8eb6742ba651dbf43a291d2650caab05c8e566efa2f7b7b27ccf1430a9d26446","target":"graph","created_at":"2026-05-18T01:36:26Z","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":"Requirements Engineering (RE) focuses on eliciting, modelling, and analyzing the requirements and environment of a system-to-be in order to design its specification. The design of the specification, usually called the Requirements Problem (RP), is a complex problem solving task, as it involves, for each new system-to-be, the discovery and exploration of, and decision making in, new and ill-defined problem and solution spaces. The default RP in RE is to design a specification of the system-to-be which (i) is consistent with given requirements and conditions of its environment, and (ii) together","authors_text":"Ivan Jureta","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2015-07-22T17:20:31Z","title":"Requirements Problem and Solution Concepts for Adaptive Systems Engineering, and their Relationship to Mathematical Optimisation, Decision Analysis, and Expected Utility Theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.06260","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:f6a4facdb0884423fe4563232943632ce214a84dfaefc312bc2fd15242d84183","target":"record","created_at":"2026-05-18T01:36:26Z","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":"92868957d19878c81c5f17986e651bffdff1830bf5b37c9e1cbd3c1c83bc1d66","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2015-07-22T17:20:31Z","title_canon_sha256":"ffb374b607f4084515d4b89824f8c63ac235b0fad2880cf0d23c217445ec3f5e"},"schema_version":"1.0","source":{"id":"1507.06260","kind":"arxiv","version":1}},"canonical_sha256":"14c4ee81ca3485337e83e46dd28504a029ea0e553e5eb362e3a3719415ee81fc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"14c4ee81ca3485337e83e46dd28504a029ea0e553e5eb362e3a3719415ee81fc","first_computed_at":"2026-05-18T01:36:26.296220Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:36:26.296220Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"J7HzdSLdo83ERPJUXUqRu/hubIkFe/KWs2aC9IGXbBLC0TUiOFHvr52ueqEBbDULsAfDqo7a999qWa6YAy8HBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:36:26.296692Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.06260","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f6a4facdb0884423fe4563232943632ce214a84dfaefc312bc2fd15242d84183","sha256:8eb6742ba651dbf43a291d2650caab05c8e566efa2f7b7b27ccf1430a9d26446"],"state_sha256":"9ddaf8b99780b6a10fc5eefaa37bccf609496e9abf9d3bd0baf4a8ca8f47dd08"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y86SRAjs1phx/uHobVyNvSDtFzj6oqdphLBmT3+2VOiPsdxV0YFm1xS2HpieYnTeWKDq/o1CVBxUDloEN4G5Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-25T22:34:14.895091Z","bundle_sha256":"f6fb2468d80788b2dbe32b234fe98c80248d1369b7695256caf9fa60d86b3749"}}