{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:YANWAB5JGCRKAPDKXNFVS6TH6H","short_pith_number":"pith:YANWAB5J","canonical_record":{"source":{"id":"1505.02991","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-05-12T13:05:38Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"ed89292c43bb8660195fb6cb01e1a87ab06c13ca98f19cd951972f47db97bf70","abstract_canon_sha256":"fe60adb6e7633181b4609f2774b20b478b4954abf28641715e243e09a395be37"},"schema_version":"1.0"},"canonical_sha256":"c01b6007a930a2a03c6abb4b597a67f1d32d2aa23519e92b7320f221c29c4eb1","source":{"kind":"arxiv","id":"1505.02991","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.02991","created_at":"2026-05-18T02:14:15Z"},{"alias_kind":"arxiv_version","alias_value":"1505.02991v1","created_at":"2026-05-18T02:14:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.02991","created_at":"2026-05-18T02:14:15Z"},{"alias_kind":"pith_short_12","alias_value":"YANWAB5JGCRK","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"YANWAB5JGCRKAPDK","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"YANWAB5J","created_at":"2026-05-18T12:29:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:YANWAB5JGCRKAPDKXNFVS6TH6H","target":"record","payload":{"canonical_record":{"source":{"id":"1505.02991","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-05-12T13:05:38Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"ed89292c43bb8660195fb6cb01e1a87ab06c13ca98f19cd951972f47db97bf70","abstract_canon_sha256":"fe60adb6e7633181b4609f2774b20b478b4954abf28641715e243e09a395be37"},"schema_version":"1.0"},"canonical_sha256":"c01b6007a930a2a03c6abb4b597a67f1d32d2aa23519e92b7320f221c29c4eb1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:14:15.361454Z","signature_b64":"njQm2VwIdss6jk2H/H8SLtk0zv2I5ssMocpShN00h2Tux8TSOLCK0qYgKJt3yYuIbEv0uctmF56EI4WBVXdBDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c01b6007a930a2a03c6abb4b597a67f1d32d2aa23519e92b7320f221c29c4eb1","last_reissued_at":"2026-05-18T02:14:15.360693Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:14:15.360693Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1505.02991","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":"2026-05-18T02:14:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8QlxWHBO0efDw4YhV5EZR9Lhle2fzAelV0dWy4+mpz63ItZgIsLfLb5/3cbfYC+WymwLyumVZ2y0bNaHVEKzCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T01:47:53.210395Z"},"content_sha256":"0493d9f26890c10b9bd21e0dbc3bcee45dad12bf1dc939b49530a71c32bf510f","schema_version":"1.0","event_id":"sha256:0493d9f26890c10b9bd21e0dbc3bcee45dad12bf1dc939b49530a71c32bf510f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:YANWAB5JGCRKAPDKXNFVS6TH6H","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"VIP 2: Experimental tests of the Pauli Exclusion Principle for electrons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"physics.ins-det","authors_text":"A. Clozza, A. D`Uffizi, A. Pichler, A. Scordo, C. Berucci, C. Curceanu, C. Guaraldo, D. Pietreanu, D. Sirghi, E. Milotti, E. Sbardella, E. Widmann, F. Sirghi, H. Shi, J. Marton, J. P. Egger, J. Zmeskal, K. Piscicchia, L. De Paolis, 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":"2015-05-12T13:05:38Z","abstract_excerpt":"Many experiments investigated the violation of the Pauli Exclusion Principle (PEP) since its discovery in 1925. The VIP (VIolation of the Pauli Principle) experiment tested the PEP by measuring the probability for an external electron to be captured and undergo a 2p to 1s transition during its cascading process, where the 1s state is already occupied by two electrons. This transition is forbidden by the Pauli Exclusion Principle. The VIP experiment resulted in a preliminary upper limit for the probability of the violation of the PEP of 4.7 x 10^{-29}. Currently a setup for the follow-up experi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.02991","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":"2026-05-18T02:14:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3An66Gnm07z6NkVmBK3TYqCgZYAJP23xhc9Vf7TqFpHRXJxepB9vaf5e6cyey1JjZ13EpOpsTULKaEtj/52ZDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T01:47:53.210756Z"},"content_sha256":"6cf4b694fb610afc86b5851c148765416121e6f4a3520102c746cf21de5d4925","schema_version":"1.0","event_id":"sha256:6cf4b694fb610afc86b5851c148765416121e6f4a3520102c746cf21de5d4925"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YANWAB5JGCRKAPDKXNFVS6TH6H/bundle.json","state_url":"https://pith.science/pith/YANWAB5JGCRKAPDKXNFVS6TH6H/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YANWAB5JGCRKAPDKXNFVS6TH6H/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":"2026-06-12T01:47:53Z","links":{"resolver":"https://pith.science/pith/YANWAB5JGCRKAPDKXNFVS6TH6H","bundle":"https://pith.science/pith/YANWAB5JGCRKAPDKXNFVS6TH6H/bundle.json","state":"https://pith.science/pith/YANWAB5JGCRKAPDKXNFVS6TH6H/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YANWAB5JGCRKAPDKXNFVS6TH6H/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:YANWAB5JGCRKAPDKXNFVS6TH6H","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":"fe60adb6e7633181b4609f2774b20b478b4954abf28641715e243e09a395be37","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-05-12T13:05:38Z","title_canon_sha256":"ed89292c43bb8660195fb6cb01e1a87ab06c13ca98f19cd951972f47db97bf70"},"schema_version":"1.0","source":{"id":"1505.02991","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.02991","created_at":"2026-05-18T02:14:15Z"},{"alias_kind":"arxiv_version","alias_value":"1505.02991v1","created_at":"2026-05-18T02:14:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.02991","created_at":"2026-05-18T02:14:15Z"},{"alias_kind":"pith_short_12","alias_value":"YANWAB5JGCRK","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"YANWAB5JGCRKAPDK","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"YANWAB5J","created_at":"2026-05-18T12:29:50Z"}],"graph_snapshots":[{"event_id":"sha256:6cf4b694fb610afc86b5851c148765416121e6f4a3520102c746cf21de5d4925","target":"graph","created_at":"2026-05-18T02:14:15Z","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":"Many experiments investigated the violation of the Pauli Exclusion Principle (PEP) since its discovery in 1925. The VIP (VIolation of the Pauli Principle) experiment tested the PEP by measuring the probability for an external electron to be captured and undergo a 2p to 1s transition during its cascading process, where the 1s state is already occupied by two electrons. This transition is forbidden by the Pauli Exclusion Principle. The VIP experiment resulted in a preliminary upper limit for the probability of the violation of the PEP of 4.7 x 10^{-29}. Currently a setup for the follow-up experi","authors_text":"A. Clozza, A. D`Uffizi, A. Pichler, A. Scordo, C. Berucci, C. Curceanu, C. Guaraldo, D. Pietreanu, D. Sirghi, E. Milotti, E. Sbardella, E. Widmann, F. Sirghi, H. Shi, J. Marton, J. P. Egger, J. Zmeskal, K. Piscicchia, L. De Paolis, 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":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-05-12T13:05:38Z","title":"VIP 2: Experimental tests of the Pauli Exclusion Principle for electrons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.02991","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":"sha256:0493d9f26890c10b9bd21e0dbc3bcee45dad12bf1dc939b49530a71c32bf510f","target":"record","created_at":"2026-05-18T02:14:15Z","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":"fe60adb6e7633181b4609f2774b20b478b4954abf28641715e243e09a395be37","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-05-12T13:05:38Z","title_canon_sha256":"ed89292c43bb8660195fb6cb01e1a87ab06c13ca98f19cd951972f47db97bf70"},"schema_version":"1.0","source":{"id":"1505.02991","kind":"arxiv","version":1}},"canonical_sha256":"c01b6007a930a2a03c6abb4b597a67f1d32d2aa23519e92b7320f221c29c4eb1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c01b6007a930a2a03c6abb4b597a67f1d32d2aa23519e92b7320f221c29c4eb1","first_computed_at":"2026-05-18T02:14:15.360693Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:14:15.360693Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"njQm2VwIdss6jk2H/H8SLtk0zv2I5ssMocpShN00h2Tux8TSOLCK0qYgKJt3yYuIbEv0uctmF56EI4WBVXdBDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:14:15.361454Z","signed_message":"canonical_sha256_bytes"},"source_id":"1505.02991","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0493d9f26890c10b9bd21e0dbc3bcee45dad12bf1dc939b49530a71c32bf510f","sha256:6cf4b694fb610afc86b5851c148765416121e6f4a3520102c746cf21de5d4925"],"state_sha256":"5539c5ca59b3921bca59905fe89d2b1373a13d0f727b4e7e54cbb05b8749a9f7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Gq4ROM2+LWgKivSqWQQfOGMYIsMifVTUp6xZ3OkFE9pzKy/AZ3mlWu/YcbA0vkE1+MG0NWPS+5YddiE0j6iQBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-12T01:47:53.212881Z","bundle_sha256":"914664a3a67e7d9bd58f1217d194d1e3464c289587b1a187c12d5eee3d423849"}}