{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:HKJDXBU5EF3SZCJXHMCO7TZUJS","short_pith_number":"pith:HKJDXBU5","canonical_record":{"source":{"id":"2508.18822","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2025-08-26T09:00:55Z","cross_cats_sorted":[],"title_canon_sha256":"758928f46f29c500f01b592fc8b31c373a3b57ba736e6ec4eed06c8c73bd51c2","abstract_canon_sha256":"bb9cf19e16dbeb28f582495b67f78a8c694b46d6cb391d99a283bee2009558f2"},"schema_version":"1.0"},"canonical_sha256":"3a923b869d21772c89373b04efcf344c8fe59b9468a6fcbf5678b34ab19a1b2b","source":{"kind":"arxiv","id":"2508.18822","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.18822","created_at":"2026-07-05T11:59:31Z"},{"alias_kind":"arxiv_version","alias_value":"2508.18822v1","created_at":"2026-07-05T11:59:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.18822","created_at":"2026-07-05T11:59:31Z"},{"alias_kind":"pith_short_12","alias_value":"HKJDXBU5EF3S","created_at":"2026-07-05T11:59:31Z"},{"alias_kind":"pith_short_16","alias_value":"HKJDXBU5EF3SZCJX","created_at":"2026-07-05T11:59:31Z"},{"alias_kind":"pith_short_8","alias_value":"HKJDXBU5","created_at":"2026-07-05T11:59:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:HKJDXBU5EF3SZCJXHMCO7TZUJS","target":"record","payload":{"canonical_record":{"source":{"id":"2508.18822","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2025-08-26T09:00:55Z","cross_cats_sorted":[],"title_canon_sha256":"758928f46f29c500f01b592fc8b31c373a3b57ba736e6ec4eed06c8c73bd51c2","abstract_canon_sha256":"bb9cf19e16dbeb28f582495b67f78a8c694b46d6cb391d99a283bee2009558f2"},"schema_version":"1.0"},"canonical_sha256":"3a923b869d21772c89373b04efcf344c8fe59b9468a6fcbf5678b34ab19a1b2b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:59:31.738134Z","signature_b64":"jPPpqsjpTCuRESM/y2P344YadrJZ/JCQqvnmFi96jKUOD3wyUGso96S7N64peGRVjKjgYsGvX06X1HWKiub/Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3a923b869d21772c89373b04efcf344c8fe59b9468a6fcbf5678b34ab19a1b2b","last_reissued_at":"2026-07-05T11:59:31.737605Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:59:31.737605Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2508.18822","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":"2026-07-05T11:59:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xP0AZWxmWrdj2hipzg5eenjEC6mmIFulyrC2Xan0JJ5F3u/8c9DE3PRSQjKvuAs2+r4oHtnu+f7ZOkArTMJpAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T17:29:29.136112Z"},"content_sha256":"1e47217e7857d3027ff9d08c5f038e2716a895fc3ac26bce1c1692dea0a2e029","schema_version":"1.0","event_id":"sha256:1e47217e7857d3027ff9d08c5f038e2716a895fc3ac26bce1c1692dea0a2e029"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:HKJDXBU5EF3SZCJXHMCO7TZUJS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spontaneous Collapse Models","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Matteo Carlesso, Sandro Donadi","submitted_at":"2025-08-26T09:00:55Z","abstract_excerpt":"Collapse models are phenomenological models introduced to solve the measurement problem in quantum mechanics. They modify the Schr\\\"odinger equation by adding non-linear and stochastic terms, which induce the wavefunction collapse in space. The collapse effects are negligible for microscopic systems but become dominant in the macroscopic regime, thus also describing coherently the quantum-to-classical transition. Collapse models make different predictions compared to those of quantum mechanics; hence they can be tested. Here we introduce the most relevant collapse models present in the literat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.18822","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2508.18822/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T11:59:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"J8ZRBRRaQk5+AOXC26P89rsQWYjV09KqMGaJNSZkCicorcHrppMqyO8skF7c0lq53COmKyJAP2li4qS40QDbAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T17:29:29.136760Z"},"content_sha256":"8d4a4417e4ce9d2351f58b9d7bf5432dd2648b081e1aa9c54b9decfdd15a08a6","schema_version":"1.0","event_id":"sha256:8d4a4417e4ce9d2351f58b9d7bf5432dd2648b081e1aa9c54b9decfdd15a08a6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HKJDXBU5EF3SZCJXHMCO7TZUJS/bundle.json","state_url":"https://pith.science/pith/HKJDXBU5EF3SZCJXHMCO7TZUJS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HKJDXBU5EF3SZCJXHMCO7TZUJS/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":"2026-08-11T17:29:29Z","links":{"resolver":"https://pith.science/pith/HKJDXBU5EF3SZCJXHMCO7TZUJS","bundle":"https://pith.science/pith/HKJDXBU5EF3SZCJXHMCO7TZUJS/bundle.json","state":"https://pith.science/pith/HKJDXBU5EF3SZCJXHMCO7TZUJS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HKJDXBU5EF3SZCJXHMCO7TZUJS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:HKJDXBU5EF3SZCJXHMCO7TZUJS","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":"bb9cf19e16dbeb28f582495b67f78a8c694b46d6cb391d99a283bee2009558f2","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2025-08-26T09:00:55Z","title_canon_sha256":"758928f46f29c500f01b592fc8b31c373a3b57ba736e6ec4eed06c8c73bd51c2"},"schema_version":"1.0","source":{"id":"2508.18822","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.18822","created_at":"2026-07-05T11:59:31Z"},{"alias_kind":"arxiv_version","alias_value":"2508.18822v1","created_at":"2026-07-05T11:59:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.18822","created_at":"2026-07-05T11:59:31Z"},{"alias_kind":"pith_short_12","alias_value":"HKJDXBU5EF3S","created_at":"2026-07-05T11:59:31Z"},{"alias_kind":"pith_short_16","alias_value":"HKJDXBU5EF3SZCJX","created_at":"2026-07-05T11:59:31Z"},{"alias_kind":"pith_short_8","alias_value":"HKJDXBU5","created_at":"2026-07-05T11:59:31Z"}],"graph_snapshots":[{"event_id":"sha256:8d4a4417e4ce9d2351f58b9d7bf5432dd2648b081e1aa9c54b9decfdd15a08a6","target":"graph","created_at":"2026-07-05T11:59:31Z","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/2508.18822/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Collapse models are phenomenological models introduced to solve the measurement problem in quantum mechanics. They modify the Schr\\\"odinger equation by adding non-linear and stochastic terms, which induce the wavefunction collapse in space. The collapse effects are negligible for microscopic systems but become dominant in the macroscopic regime, thus also describing coherently the quantum-to-classical transition. Collapse models make different predictions compared to those of quantum mechanics; hence they can be tested. Here we introduce the most relevant collapse models present in the literat","authors_text":"Matteo Carlesso, Sandro Donadi","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2025-08-26T09:00:55Z","title":"Spontaneous Collapse Models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.18822","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":"sha256:1e47217e7857d3027ff9d08c5f038e2716a895fc3ac26bce1c1692dea0a2e029","target":"record","created_at":"2026-07-05T11:59:31Z","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":"bb9cf19e16dbeb28f582495b67f78a8c694b46d6cb391d99a283bee2009558f2","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2025-08-26T09:00:55Z","title_canon_sha256":"758928f46f29c500f01b592fc8b31c373a3b57ba736e6ec4eed06c8c73bd51c2"},"schema_version":"1.0","source":{"id":"2508.18822","kind":"arxiv","version":1}},"canonical_sha256":"3a923b869d21772c89373b04efcf344c8fe59b9468a6fcbf5678b34ab19a1b2b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3a923b869d21772c89373b04efcf344c8fe59b9468a6fcbf5678b34ab19a1b2b","first_computed_at":"2026-07-05T11:59:31.737605Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:59:31.737605Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jPPpqsjpTCuRESM/y2P344YadrJZ/JCQqvnmFi96jKUOD3wyUGso96S7N64peGRVjKjgYsGvX06X1HWKiub/Cw==","signature_status":"signed_v1","signed_at":"2026-07-05T11:59:31.738134Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.18822","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1e47217e7857d3027ff9d08c5f038e2716a895fc3ac26bce1c1692dea0a2e029","sha256:8d4a4417e4ce9d2351f58b9d7bf5432dd2648b081e1aa9c54b9decfdd15a08a6"],"state_sha256":"eba655ee1c517a48e9caf41f2a2d99f235b2c40578da6c35f69342fd5c9f7d55"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0ZAJNKRZlU2F6mQa8fxN42o4vZHvvh1pk9MZPH1Bn57SQuiKN2XqIh5GoiCorlW5ntSy/MQqY/33iDQL9ZJoBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T17:29:29.140687Z","bundle_sha256":"e4b61e5b53b1f3f11b062418f443a666d9ced6eb2d56e12b9c2663b1c66f471c"}}