{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:LEUD5UABPZQLZTHNU6ZYJA2AMP","short_pith_number":"pith:LEUD5UAB","canonical_record":{"source":{"id":"1503.07667","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-03-26T10:05:49Z","cross_cats_sorted":["nucl-ex","physics.ins-det"],"title_canon_sha256":"dc0cdffc5134377283eebadb7a211c8b0342962949762ec2de3d52812f154df0","abstract_canon_sha256":"8b0410f87f4f12aa80a2ad717b6327edf7ad8c8ea4b15d240413f11e8e240769"},"schema_version":"1.0"},"canonical_sha256":"59283ed0017e60bccceda7b384834063dc365b794a9d33679c7518982bf81b23","source":{"kind":"arxiv","id":"1503.07667","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.07667","created_at":"2026-05-18T01:34:23Z"},{"alias_kind":"arxiv_version","alias_value":"1503.07667v1","created_at":"2026-05-18T01:34:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.07667","created_at":"2026-05-18T01:34:23Z"},{"alias_kind":"pith_short_12","alias_value":"LEUD5UABPZQL","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"LEUD5UABPZQLZTHN","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"LEUD5UAB","created_at":"2026-05-18T12:29:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:LEUD5UABPZQLZTHNU6ZYJA2AMP","target":"record","payload":{"canonical_record":{"source":{"id":"1503.07667","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-03-26T10:05:49Z","cross_cats_sorted":["nucl-ex","physics.ins-det"],"title_canon_sha256":"dc0cdffc5134377283eebadb7a211c8b0342962949762ec2de3d52812f154df0","abstract_canon_sha256":"8b0410f87f4f12aa80a2ad717b6327edf7ad8c8ea4b15d240413f11e8e240769"},"schema_version":"1.0"},"canonical_sha256":"59283ed0017e60bccceda7b384834063dc365b794a9d33679c7518982bf81b23","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:34:23.960635Z","signature_b64":"V6/D5V8hHylDEQfO2KJnmZVlep/z73+HEV+4M3ABvSIFg/rUCaD2W4NftACsfCI+miI3ftHszQDHGp1thNgCDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"59283ed0017e60bccceda7b384834063dc365b794a9d33679c7518982bf81b23","last_reissued_at":"2026-05-18T01:34:23.960135Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:34:23.960135Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1503.07667","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":"2026-05-18T01:34:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1+whgdw/odS7M87PlUBEMXP97CvcLCw3G+akWq2YAA2VNey57L4j+ILW2lJJOsxmftR85JOZwwz1zxJOPO/7Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T06:22:13.365069Z"},"content_sha256":"a1eae6ddd3d1e27849267f5e7c1b5f7d48398590ea99b05be2efe50b60cd2868","schema_version":"1.0","event_id":"sha256:a1eae6ddd3d1e27849267f5e7c1b5f7d48398590ea99b05be2efe50b60cd2868"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:LEUD5UABPZQLZTHNU6ZYJA2AMP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High sensitivity tests of the Pauli Exclusion Principle with VIP2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex","physics.ins-det"],"primary_cat":"quant-ph","authors_text":"A. Clozza, A. Pichler, A. Scordo, C. Berucci, C. Curceanu, C. Guaraldo, D.L. Sirghi, D. Pietreanu, E. Milotti, E. Widmann, F. Sirghi, H. Shi, J. Marton, J.-P. Egger, J. Zmeskal, K. Piscicchia, L. Sperandio, M. Bragadireanu, M. Cargnelli, M. Iliescu, M. Laubenstein, O. Vazquez Doce, S. Bartalucci, S. Bertolucci, S. Di Matteo, T. Ishiwatari, T. Ponta","submitted_at":"2015-03-26T10:05:49Z","abstract_excerpt":"The Pauli Exclusion Principle is one of the most fundamental rules of nature and represents a pillar of modern physics. According to many observations the Pauli Exclusion Principle must be extremely well fulfilled. Nevertheless, numerous experimental investigations were performed to search for a small violation of this principle. The VIP experiment at the Gran Sasso underground laboratory searched for Pauli-forbidden X-ray transitions in copper atoms using the Ramberg-Snow method and obtained the best limit so far. The follow-up experiment VIP2 is designed to reach even higher sensitivity. It "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.07667","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":"2026-05-18T01:34:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4RNQdxtSE5gsZoVmYhZZn0zWsZIFMjRoYXc+T5K3iF8OlOkEoV6fiztUN/oz28NwSp/AKfetoCjZA7VyvLK9Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T06:22:13.365498Z"},"content_sha256":"c4e86ff8b61bd85e40692b3b7b9bd22b43193608f6d09b3a8ba2692cc98a472c","schema_version":"1.0","event_id":"sha256:c4e86ff8b61bd85e40692b3b7b9bd22b43193608f6d09b3a8ba2692cc98a472c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LEUD5UABPZQLZTHNU6ZYJA2AMP/bundle.json","state_url":"https://pith.science/pith/LEUD5UABPZQLZTHNU6ZYJA2AMP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LEUD5UABPZQLZTHNU6ZYJA2AMP/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":"2026-06-10T06:22:13Z","links":{"resolver":"https://pith.science/pith/LEUD5UABPZQLZTHNU6ZYJA2AMP","bundle":"https://pith.science/pith/LEUD5UABPZQLZTHNU6ZYJA2AMP/bundle.json","state":"https://pith.science/pith/LEUD5UABPZQLZTHNU6ZYJA2AMP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LEUD5UABPZQLZTHNU6ZYJA2AMP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:LEUD5UABPZQLZTHNU6ZYJA2AMP","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":"8b0410f87f4f12aa80a2ad717b6327edf7ad8c8ea4b15d240413f11e8e240769","cross_cats_sorted":["nucl-ex","physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-03-26T10:05:49Z","title_canon_sha256":"dc0cdffc5134377283eebadb7a211c8b0342962949762ec2de3d52812f154df0"},"schema_version":"1.0","source":{"id":"1503.07667","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.07667","created_at":"2026-05-18T01:34:23Z"},{"alias_kind":"arxiv_version","alias_value":"1503.07667v1","created_at":"2026-05-18T01:34:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.07667","created_at":"2026-05-18T01:34:23Z"},{"alias_kind":"pith_short_12","alias_value":"LEUD5UABPZQL","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"LEUD5UABPZQLZTHN","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"LEUD5UAB","created_at":"2026-05-18T12:29:29Z"}],"graph_snapshots":[{"event_id":"sha256:c4e86ff8b61bd85e40692b3b7b9bd22b43193608f6d09b3a8ba2692cc98a472c","target":"graph","created_at":"2026-05-18T01:34:23Z","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":"The Pauli Exclusion Principle is one of the most fundamental rules of nature and represents a pillar of modern physics. According to many observations the Pauli Exclusion Principle must be extremely well fulfilled. Nevertheless, numerous experimental investigations were performed to search for a small violation of this principle. The VIP experiment at the Gran Sasso underground laboratory searched for Pauli-forbidden X-ray transitions in copper atoms using the Ramberg-Snow method and obtained the best limit so far. The follow-up experiment VIP2 is designed to reach even higher sensitivity. It ","authors_text":"A. Clozza, A. Pichler, A. Scordo, C. Berucci, C. Curceanu, C. Guaraldo, D.L. Sirghi, D. Pietreanu, E. Milotti, E. Widmann, F. Sirghi, H. Shi, J. Marton, J.-P. Egger, J. Zmeskal, K. Piscicchia, L. Sperandio, M. Bragadireanu, M. Cargnelli, M. Iliescu, M. Laubenstein, O. Vazquez Doce, S. Bartalucci, S. Bertolucci, S. Di Matteo, T. Ishiwatari, T. Ponta","cross_cats":["nucl-ex","physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-03-26T10:05:49Z","title":"High sensitivity tests of the Pauli Exclusion Principle with VIP2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.07667","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:a1eae6ddd3d1e27849267f5e7c1b5f7d48398590ea99b05be2efe50b60cd2868","target":"record","created_at":"2026-05-18T01:34:23Z","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":"8b0410f87f4f12aa80a2ad717b6327edf7ad8c8ea4b15d240413f11e8e240769","cross_cats_sorted":["nucl-ex","physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-03-26T10:05:49Z","title_canon_sha256":"dc0cdffc5134377283eebadb7a211c8b0342962949762ec2de3d52812f154df0"},"schema_version":"1.0","source":{"id":"1503.07667","kind":"arxiv","version":1}},"canonical_sha256":"59283ed0017e60bccceda7b384834063dc365b794a9d33679c7518982bf81b23","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"59283ed0017e60bccceda7b384834063dc365b794a9d33679c7518982bf81b23","first_computed_at":"2026-05-18T01:34:23.960135Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:34:23.960135Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"V6/D5V8hHylDEQfO2KJnmZVlep/z73+HEV+4M3ABvSIFg/rUCaD2W4NftACsfCI+miI3ftHszQDHGp1thNgCDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:34:23.960635Z","signed_message":"canonical_sha256_bytes"},"source_id":"1503.07667","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a1eae6ddd3d1e27849267f5e7c1b5f7d48398590ea99b05be2efe50b60cd2868","sha256:c4e86ff8b61bd85e40692b3b7b9bd22b43193608f6d09b3a8ba2692cc98a472c"],"state_sha256":"590513b301569659800b2d24d1b214ac3a450d1dbc39ecd977d892b4a4b1aa09"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tp9EvLI7fsfmuqJVNLfD4ZBbtwRqiOJyvGLYTb6mehppd3QgU3rvd96mxYza8Cz7EnDVrHtMzl837eBj9jCvAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T06:22:13.367759Z","bundle_sha256":"6c5ec966cd50e84f681b9dfcb7827e6b4a858095f13ef990b36d67caad05c3af"}}