{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:ZUL7ZAJKLUHKQP6QIJILQY3JVL","short_pith_number":"pith:ZUL7ZAJK","canonical_record":{"source":{"id":"1703.06796","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-03-20T15:19:50Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"347eca3872af7c964e2a03da811a20a04c88f71ef4a2456c6f6dff7b6e88aa01","abstract_canon_sha256":"a51a81b8a394121278786617d5b0cbb518c5bf7239f44a616012d5d41c4e22ba"},"schema_version":"1.0"},"canonical_sha256":"cd17fc812a5d0ea83fd04250b86369aace274c44881998f02cefeacc31688155","source":{"kind":"arxiv","id":"1703.06796","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.06796","created_at":"2026-05-18T00:35:23Z"},{"alias_kind":"arxiv_version","alias_value":"1703.06796v1","created_at":"2026-05-18T00:35:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.06796","created_at":"2026-05-18T00:35:23Z"},{"alias_kind":"pith_short_12","alias_value":"ZUL7ZAJKLUHK","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZUL7ZAJKLUHKQP6Q","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZUL7ZAJK","created_at":"2026-05-18T12:31:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:ZUL7ZAJKLUHKQP6QIJILQY3JVL","target":"record","payload":{"canonical_record":{"source":{"id":"1703.06796","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-03-20T15:19:50Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"347eca3872af7c964e2a03da811a20a04c88f71ef4a2456c6f6dff7b6e88aa01","abstract_canon_sha256":"a51a81b8a394121278786617d5b0cbb518c5bf7239f44a616012d5d41c4e22ba"},"schema_version":"1.0"},"canonical_sha256":"cd17fc812a5d0ea83fd04250b86369aace274c44881998f02cefeacc31688155","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:35:23.108735Z","signature_b64":"wIvI0zd0HnXyHdNE1AdIOan8noQmPKoP/eTp+Ho0FfRRSG7ZnfE4x6ut6/x3rt1vdA6OtMWh9KHsMzYrpCk+AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cd17fc812a5d0ea83fd04250b86369aace274c44881998f02cefeacc31688155","last_reissued_at":"2026-05-18T00:35:23.108085Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:35:23.108085Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1703.06796","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":"2026-05-18T00:35:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t4R8vk/OfTyb98sKe6Z12OWLdsc6KoBzX4qXDcSwvjnJGEiDz4mK8x+paUDImFdTm6OCG9r6HEGk6l0GPMTQBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T21:43:33.185743Z"},"content_sha256":"3cbce4be8c6d7b8a69d029943599bc50d5f812d21c788429448de905d6746e73","schema_version":"1.0","event_id":"sha256:3cbce4be8c6d7b8a69d029943599bc50d5f812d21c788429448de905d6746e73"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:ZUL7ZAJKLUHKQP6QIJILQY3JVL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Underground tests of quantum mechanics. Whispers in the cosmic silence?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"quant-ph","authors_text":"A. Bassi, A. Clozza, A.M. Bragadireanu, A. Pichler, A. Scordo, C. Berucci, C. Curceanu, C. Guaraldo, D. Pietreanu, D. Sirghi, E. Milotti, F. Sirghi, H. Shi, J. Marton, J-P. Egger, J. Zmeskal, K. Piscicchia, L. De Paolis, L. Sperandio, M. Bazzi, M. Cargnelli, M. Iliescu, M. Laubenstein, O. Vazquez Doce, S. Bartalucci, S. Bertolucci, S. Di Matteo, S. Donadi","submitted_at":"2017-03-20T15:19:50Z","abstract_excerpt":"By performing X-rays measurements in the \"cosmic silence\" of the underground laboratory of Gran Sasso, LNGS-INFN, we test a basic principle of quantum mechanics: the Pauli Exclusion Principle (PEP), for electrons. We present the achieved results of the VIP experiment and the ongoing VIP2 measurement aiming to gain two orders of magnitude improvement in testing PEP. We also use a similar experimental technique to search for radiation (X and gamma) predicted by continuous spontaneous localization models, which aim to solve the \"measurement problem\"."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.06796","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":"2026-05-18T00:35:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yHUlwJhyvHgX16XnNu0HZ5TbjgS/g/FA02gV6pYRozHIU7BgqvPFft+WtvlhI01YUGwE6W/Ukhl0L5Mb6tmlDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T21:43:33.186087Z"},"content_sha256":"fa68a97d4dad2cdd6de23ec16cb78dbe3e7a2730a17604860628a0c14dcbf325","schema_version":"1.0","event_id":"sha256:fa68a97d4dad2cdd6de23ec16cb78dbe3e7a2730a17604860628a0c14dcbf325"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZUL7ZAJKLUHKQP6QIJILQY3JVL/bundle.json","state_url":"https://pith.science/pith/ZUL7ZAJKLUHKQP6QIJILQY3JVL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZUL7ZAJKLUHKQP6QIJILQY3JVL/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":"2026-06-08T21:43:33Z","links":{"resolver":"https://pith.science/pith/ZUL7ZAJKLUHKQP6QIJILQY3JVL","bundle":"https://pith.science/pith/ZUL7ZAJKLUHKQP6QIJILQY3JVL/bundle.json","state":"https://pith.science/pith/ZUL7ZAJKLUHKQP6QIJILQY3JVL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZUL7ZAJKLUHKQP6QIJILQY3JVL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:ZUL7ZAJKLUHKQP6QIJILQY3JVL","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":"a51a81b8a394121278786617d5b0cbb518c5bf7239f44a616012d5d41c4e22ba","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-03-20T15:19:50Z","title_canon_sha256":"347eca3872af7c964e2a03da811a20a04c88f71ef4a2456c6f6dff7b6e88aa01"},"schema_version":"1.0","source":{"id":"1703.06796","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.06796","created_at":"2026-05-18T00:35:23Z"},{"alias_kind":"arxiv_version","alias_value":"1703.06796v1","created_at":"2026-05-18T00:35:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.06796","created_at":"2026-05-18T00:35:23Z"},{"alias_kind":"pith_short_12","alias_value":"ZUL7ZAJKLUHK","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZUL7ZAJKLUHKQP6Q","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZUL7ZAJK","created_at":"2026-05-18T12:31:59Z"}],"graph_snapshots":[{"event_id":"sha256:fa68a97d4dad2cdd6de23ec16cb78dbe3e7a2730a17604860628a0c14dcbf325","target":"graph","created_at":"2026-05-18T00:35:23Z","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":"By performing X-rays measurements in the \"cosmic silence\" of the underground laboratory of Gran Sasso, LNGS-INFN, we test a basic principle of quantum mechanics: the Pauli Exclusion Principle (PEP), for electrons. We present the achieved results of the VIP experiment and the ongoing VIP2 measurement aiming to gain two orders of magnitude improvement in testing PEP. We also use a similar experimental technique to search for radiation (X and gamma) predicted by continuous spontaneous localization models, which aim to solve the \"measurement problem\".","authors_text":"A. Bassi, A. Clozza, A.M. Bragadireanu, A. Pichler, A. Scordo, C. Berucci, C. Curceanu, C. Guaraldo, D. Pietreanu, D. Sirghi, E. Milotti, F. Sirghi, H. Shi, J. Marton, J-P. Egger, J. Zmeskal, K. Piscicchia, L. De Paolis, L. Sperandio, M. Bazzi, M. Cargnelli, M. Iliescu, M. Laubenstein, O. Vazquez Doce, S. Bartalucci, S. Bertolucci, S. Di Matteo, S. Donadi","cross_cats":["physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-03-20T15:19:50Z","title":"Underground tests of quantum mechanics. Whispers in the cosmic silence?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.06796","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":"sha256:3cbce4be8c6d7b8a69d029943599bc50d5f812d21c788429448de905d6746e73","target":"record","created_at":"2026-05-18T00:35:23Z","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":"a51a81b8a394121278786617d5b0cbb518c5bf7239f44a616012d5d41c4e22ba","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-03-20T15:19:50Z","title_canon_sha256":"347eca3872af7c964e2a03da811a20a04c88f71ef4a2456c6f6dff7b6e88aa01"},"schema_version":"1.0","source":{"id":"1703.06796","kind":"arxiv","version":1}},"canonical_sha256":"cd17fc812a5d0ea83fd04250b86369aace274c44881998f02cefeacc31688155","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cd17fc812a5d0ea83fd04250b86369aace274c44881998f02cefeacc31688155","first_computed_at":"2026-05-18T00:35:23.108085Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:35:23.108085Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wIvI0zd0HnXyHdNE1AdIOan8noQmPKoP/eTp+Ho0FfRRSG7ZnfE4x6ut6/x3rt1vdA6OtMWh9KHsMzYrpCk+AA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:35:23.108735Z","signed_message":"canonical_sha256_bytes"},"source_id":"1703.06796","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3cbce4be8c6d7b8a69d029943599bc50d5f812d21c788429448de905d6746e73","sha256:fa68a97d4dad2cdd6de23ec16cb78dbe3e7a2730a17604860628a0c14dcbf325"],"state_sha256":"e40f4b0fcd1808aa013cd2730d88568a71e81143d53258a21b201ca575898373"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gWzXdbdoPvk8Q2t7RcgWvFok14JEQuc/9G1WNbY36NaHVguDxFP3KWmQ775ceUTOns1HxkG/UL1YctqzaQfMAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T21:43:33.187933Z","bundle_sha256":"9222378f61f9b366a38fd406fbf386136257ee8821b0fc09161ae66bf686ea1a"}}