{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:DLQ2YCCRTL5AHI622OLJQAF5ZG","merge_version":"pith-open-graph-merge-v1","event_count":20,"valid_event_count":20,"invalid_event_count":0,"equivocation_count":1,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"6b33f031068802debbf371a5b709b492d331ab4955d2ff056c29ea674896059e","cross_cats_sorted":["physics.soc-ph"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.space-ph","submitted_at":"2026-05-22T15:14:30Z","title_canon_sha256":"f9efb1ebd29c6b27f39170b130ee8bc108ad1474d60c1e0c56647bcca5bad0a2"},"schema_version":"1.0","source":{"id":"2605.23740","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.23740","created_at":"2026-05-25T02:02:29Z"},{"alias_kind":"arxiv_version","alias_value":"2605.23740v1","created_at":"2026-05-25T02:02:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.23740","created_at":"2026-05-25T02:02:29Z"},{"alias_kind":"pith_short_12","alias_value":"DLQ2YCCRTL5A","created_at":"2026-05-25T02:02:29Z"},{"alias_kind":"pith_short_16","alias_value":"DLQ2YCCRTL5AHI62","created_at":"2026-05-25T02:02:29Z"},{"alias_kind":"pith_short_8","alias_value":"DLQ2YCCR","created_at":"2026-05-25T02:02:29Z"}],"graph_snapshots":[{"event_id":"sha256:c0903d2234aa1f00a41e60d9fce4a5b00dc88a974cd39dccf57b8f90997e3e6b","target":"graph","created_at":"2026-05-25T02:02:29Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2605.23740/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Space faces significant sustainability issues including orbital congestion and debris accumulation. The continued growth of space operations, accelerated by advancements such as reusable launch systems, further intensifies these pressures. Current mitigation strategies, such as deorbiting spacecraft or transferring them to graveyard orbits, remain inherently linear. This \"take-make-waste\" approach is environmentally unsustainable and economically inefficient. On Earth, similar challenges have driven the development of the circular economy (CE), which aims to eliminate waste and pollution, circ","authors_text":"Andreas M. Hein, Enrico Stoll, Jonas Bahlmann, Michael Saidani","cross_cats":["physics.soc-ph"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.space-ph","submitted_at":"2026-05-22T15:14:30Z","title":"Conceptualizing and Defining the Circular Space Economy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.23740","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:d4f26a4d1936c8f645ad801f27270fee963808cefd1b1629fb5d198f506bf077","target":"record","created_at":"2026-05-25T02:02:29Z","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":"6b33f031068802debbf371a5b709b492d331ab4955d2ff056c29ea674896059e","cross_cats_sorted":["physics.soc-ph"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.space-ph","submitted_at":"2026-05-22T15:14:30Z","title_canon_sha256":"f9efb1ebd29c6b27f39170b130ee8bc108ad1474d60c1e0c56647bcca5bad0a2"},"schema_version":"1.0","source":{"id":"2605.23740","kind":"arxiv","version":1}},"canonical_sha256":"1ae1ac08519afa03a3dad3969800bdc9ba1e9ff7fe0a6542d575d28b83f62c8c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1ae1ac08519afa03a3dad3969800bdc9ba1e9ff7fe0a6542d575d28b83f62c8c","first_computed_at":"2026-05-25T02:02:29.495598Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-25T02:02:29.495598Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"42wSCk4P81z3YXLiJgtMKv1sykDr1v7/78Kvbux/UdCgYWA6GW0tEx10lR/+uNfR7inz7/WR//5S2sq/gXMuDQ==","signature_status":"signed_v1","signed_at":"2026-05-25T02:02:29.496221Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.23740","source_kind":"arxiv","source_version":1}}},"equivocations":[{"signer_id":"pith.science","event_type":"integrity_finding","target":"integrity","event_ids":["sha256:1c1d4323e13512c208f63e85c9f30e37809a01cd0e4d94a39d32ef6c77781875","sha256:1dc1e5105e247b9acccaba6ea30a992438bab9e84505d959b237a9620033b8e7","sha256:1ec521a490b8ad4fb157fd2c540b30de161ef96abf48b55c265161b3e44e5132","sha256:2f1c4f8bbefc7774d1074bb863eeea6a0d02951b0c9b128abca5da6dc1aacbb8","sha256:33624cd99d23b81a95f094e97e88d3f4403f3905ab0419e72628d425d37028bf","sha256:33b0e63c62493a3c69e3a1f0bae1a9145bf71101a11ca560f6c5d2a6a366d2b9","sha256:65f3d96fb3a03c0b6892e873c3e04c7077a04a212dc0c9f82bec6004809f0c44","sha256:82be87c45f55113412bdab30caddc32fe2547212a5eedfd0ccf646d12b84981a","sha256:8a3d3831156a8cd67b4c45cf406c1555846b3419e310de938aef27b9793a4687","sha256:8d1a77a4a55f0dd3babd61891cb4dbae87af582b8415d28f555e8fe676277b88","sha256:9401fa35e0ac4a7b92f8342c0c7c85e747f3d90b59bf0d17f97a8f34c5614d67","sha256:adf1a3e0f5e38f9d66176381ce7571255ada96545e4a70f291fd78de0814dbfb","sha256:c9edee358fc1b94909694acd5639088dddd1a06e5947a20ab4932165f7610676","sha256:cb032fdc70ecad34a42ed1da3e273c34716c683110686c79c9d44a898f394bc5","sha256:cef456763f93022e551d0f6e7ba59b5467f4a5c3b5ce42fb24e410bef1683a15","sha256:d2d68e2a692f6f5a6fff6bfba4883cc18a3e935411b7f466124c0f3eedd1adab","sha256:d4998ee0337a1595c7b3d8a39d9eee38fe54a290492281d9c509abb4495ef158","sha256:f15505a507d2bd821a1c00653e8486474fc3d84ad3fb1b02ea097b092955f8a5"]}],"invalid_events":[],"applied_event_ids":["sha256:d4f26a4d1936c8f645ad801f27270fee963808cefd1b1629fb5d198f506bf077","sha256:c0903d2234aa1f00a41e60d9fce4a5b00dc88a974cd39dccf57b8f90997e3e6b"],"state_sha256":"e921410ef30770bcab466c49f845e9afd308a4f9dddbd60df2944ab8e53fd4e7"}