{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:STE5ESFOU4QCRHFZMGFK6E22L6","short_pith_number":"pith:STE5ESFO","canonical_record":{"source":{"id":"1105.4724","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2011-05-24T10:25:04Z","cross_cats_sorted":["astro-ph.IM","physics.ins-det"],"title_canon_sha256":"364cff99dc2e55ff253551f8fcca82ce85c3a59a60a87f9f79b7b49aff182233","abstract_canon_sha256":"2b69007ee5a00b498ab7bd8de950b7069321c30e0cb1f1a305c6cefd39217c58"},"schema_version":"1.0"},"canonical_sha256":"94c9d248aea720289cb9618aaf135a5fa691ddc350639b0ddece7749b5d287bc","source":{"kind":"arxiv","id":"1105.4724","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.4724","created_at":"2026-05-18T02:01:51Z"},{"alias_kind":"arxiv_version","alias_value":"1105.4724v2","created_at":"2026-05-18T02:01:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.4724","created_at":"2026-05-18T02:01:51Z"},{"alias_kind":"pith_short_12","alias_value":"STE5ESFOU4QC","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_16","alias_value":"STE5ESFOU4QCRHFZ","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_8","alias_value":"STE5ESFO","created_at":"2026-05-18T12:26:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:STE5ESFOU4QCRHFZMGFK6E22L6","target":"record","payload":{"canonical_record":{"source":{"id":"1105.4724","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2011-05-24T10:25:04Z","cross_cats_sorted":["astro-ph.IM","physics.ins-det"],"title_canon_sha256":"364cff99dc2e55ff253551f8fcca82ce85c3a59a60a87f9f79b7b49aff182233","abstract_canon_sha256":"2b69007ee5a00b498ab7bd8de950b7069321c30e0cb1f1a305c6cefd39217c58"},"schema_version":"1.0"},"canonical_sha256":"94c9d248aea720289cb9618aaf135a5fa691ddc350639b0ddece7749b5d287bc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:01:51.852282Z","signature_b64":"AlcZDIMoBL2M9nn9porcd38xBMeTjdQsJAzkUXF0i9Glo9QfEA5zsS2f/In6zELawoxs/qx0l9mfbuK+UlH0Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"94c9d248aea720289cb9618aaf135a5fa691ddc350639b0ddece7749b5d287bc","last_reissued_at":"2026-05-18T02:01:51.851480Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:01:51.851480Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1105.4724","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:01:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nx49YkkWlikOOm8Uy7R1V/DHpvol0QMkpPxtV8PYtmIvsPc7jaRHm7cgVwOLf6gpQiEvRfRQVqoN/G/BP4+GCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T19:25:47.621712Z"},"content_sha256":"6d54ba49d13c4950751bdfee1a3b7131767020c4cb3cf99817a36f9ee6c73640","schema_version":"1.0","event_id":"sha256:6d54ba49d13c4950751bdfee1a3b7131767020c4cb3cf99817a36f9ee6c73640"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:STE5ESFOU4QCRHFZMGFK6E22L6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Vibrational excitation induced by electron beam and cosmic rays in normal and superconductive aluminum bars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM","physics.ins-det"],"primary_cat":"gr-qc","authors_text":"A. Marini, B. Buonomo, C. Ligi, E. Coccia, F. Ronga, G. Cavallari, G. Mazzitelli, G. Modestino, G. Pizzella, L.G. Foggetta, L. Quintieri, M. Bassan, P. Valente, S. D'Antonio, S. M. Vinko, V. Fafone","submitted_at":"2011-05-24T10:25:04Z","abstract_excerpt":"We report new measurements of the acoustic excitation of an Al5056 superconductive bar when hit by an electron beam, in a previously unexplored temperature range, down to 0.35 K. These data, analyzed together with previous results of the RAP experiment obtained for T > 0.54 K, show a vibrational response enhanced by a factor 4.9 with respect to that measured in the normal state. This enhancement explains the anomalous large signals due to cosmic rays previously detected in the NAUTILUS gravitational wave detector."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.4724","kind":"arxiv","version":2},"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":"2026-05-18T02:01:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7Mog9XaVF19i5zKk5XQLEejHpsMEPq1TXxe1v6SX1/EAB5ZueVJqvyFwn+ya1pfBFqe5PtnbqYgM2Z4AfZ/UBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T19:25:47.622338Z"},"content_sha256":"411a985c1adaf6aee288fe4676907a43fbf6313360162ed171a77092dc556e45","schema_version":"1.0","event_id":"sha256:411a985c1adaf6aee288fe4676907a43fbf6313360162ed171a77092dc556e45"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/STE5ESFOU4QCRHFZMGFK6E22L6/bundle.json","state_url":"https://pith.science/pith/STE5ESFOU4QCRHFZMGFK6E22L6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/STE5ESFOU4QCRHFZMGFK6E22L6/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":"2026-05-21T19:25:47Z","links":{"resolver":"https://pith.science/pith/STE5ESFOU4QCRHFZMGFK6E22L6","bundle":"https://pith.science/pith/STE5ESFOU4QCRHFZMGFK6E22L6/bundle.json","state":"https://pith.science/pith/STE5ESFOU4QCRHFZMGFK6E22L6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/STE5ESFOU4QCRHFZMGFK6E22L6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:STE5ESFOU4QCRHFZMGFK6E22L6","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":"2b69007ee5a00b498ab7bd8de950b7069321c30e0cb1f1a305c6cefd39217c58","cross_cats_sorted":["astro-ph.IM","physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2011-05-24T10:25:04Z","title_canon_sha256":"364cff99dc2e55ff253551f8fcca82ce85c3a59a60a87f9f79b7b49aff182233"},"schema_version":"1.0","source":{"id":"1105.4724","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.4724","created_at":"2026-05-18T02:01:51Z"},{"alias_kind":"arxiv_version","alias_value":"1105.4724v2","created_at":"2026-05-18T02:01:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.4724","created_at":"2026-05-18T02:01:51Z"},{"alias_kind":"pith_short_12","alias_value":"STE5ESFOU4QC","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_16","alias_value":"STE5ESFOU4QCRHFZ","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_8","alias_value":"STE5ESFO","created_at":"2026-05-18T12:26:41Z"}],"graph_snapshots":[{"event_id":"sha256:411a985c1adaf6aee288fe4676907a43fbf6313360162ed171a77092dc556e45","target":"graph","created_at":"2026-05-18T02:01:51Z","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":"We report new measurements of the acoustic excitation of an Al5056 superconductive bar when hit by an electron beam, in a previously unexplored temperature range, down to 0.35 K. These data, analyzed together with previous results of the RAP experiment obtained for T > 0.54 K, show a vibrational response enhanced by a factor 4.9 with respect to that measured in the normal state. This enhancement explains the anomalous large signals due to cosmic rays previously detected in the NAUTILUS gravitational wave detector.","authors_text":"A. Marini, B. Buonomo, C. Ligi, E. Coccia, F. Ronga, G. Cavallari, G. Mazzitelli, G. Modestino, G. Pizzella, L.G. Foggetta, L. Quintieri, M. Bassan, P. Valente, S. D'Antonio, S. M. Vinko, V. Fafone","cross_cats":["astro-ph.IM","physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2011-05-24T10:25:04Z","title":"Vibrational excitation induced by electron beam and cosmic rays in normal and superconductive aluminum bars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.4724","kind":"arxiv","version":2},"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":"sha256:6d54ba49d13c4950751bdfee1a3b7131767020c4cb3cf99817a36f9ee6c73640","target":"record","created_at":"2026-05-18T02:01:51Z","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":"2b69007ee5a00b498ab7bd8de950b7069321c30e0cb1f1a305c6cefd39217c58","cross_cats_sorted":["astro-ph.IM","physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2011-05-24T10:25:04Z","title_canon_sha256":"364cff99dc2e55ff253551f8fcca82ce85c3a59a60a87f9f79b7b49aff182233"},"schema_version":"1.0","source":{"id":"1105.4724","kind":"arxiv","version":2}},"canonical_sha256":"94c9d248aea720289cb9618aaf135a5fa691ddc350639b0ddece7749b5d287bc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"94c9d248aea720289cb9618aaf135a5fa691ddc350639b0ddece7749b5d287bc","first_computed_at":"2026-05-18T02:01:51.851480Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:51.851480Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AlcZDIMoBL2M9nn9porcd38xBMeTjdQsJAzkUXF0i9Glo9QfEA5zsS2f/In6zELawoxs/qx0l9mfbuK+UlH0Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:51.852282Z","signed_message":"canonical_sha256_bytes"},"source_id":"1105.4724","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6d54ba49d13c4950751bdfee1a3b7131767020c4cb3cf99817a36f9ee6c73640","sha256:411a985c1adaf6aee288fe4676907a43fbf6313360162ed171a77092dc556e45"],"state_sha256":"53bcd56e3b4cb8b50f048957737c4c6675d6596dc854c45c802699d381bb416b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iFyyRjKwyN2yL4dGWs4ROvoVvd3SiggSp5KCnXEdQNtlSeK/rbEIbBPCAeNwzZ88cDFDTKg1iGN5N00V0MvhAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-21T19:25:47.625250Z","bundle_sha256":"1d45d0d402e4d4cb17d50a2f122c8ad82c0ad532075756977fb413ab9ccd9b9a"}}