{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:P56WB2LIEV7VBYTBLORFPLDWTF","short_pith_number":"pith:P56WB2LI","canonical_record":{"source":{"id":"1510.05921","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-10-20T14:48:30Z","cross_cats_sorted":[],"title_canon_sha256":"12ff57b8c700e6a888384394ff9cdc93a31971e1800bce15f4e1fa3f7dd3f321","abstract_canon_sha256":"c0f7a0b53f77f95ff270ce9fce6408cb755ba073cbea11ace287a648e553ca83"},"schema_version":"1.0"},"canonical_sha256":"7f7d60e968257f50e2615ba257ac769946362886eb74dea208dcc32c978ee06c","source":{"kind":"arxiv","id":"1510.05921","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.05921","created_at":"2026-05-18T01:18:31Z"},{"alias_kind":"arxiv_version","alias_value":"1510.05921v2","created_at":"2026-05-18T01:18:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.05921","created_at":"2026-05-18T01:18:31Z"},{"alias_kind":"pith_short_12","alias_value":"P56WB2LIEV7V","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"P56WB2LIEV7VBYTB","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"P56WB2LI","created_at":"2026-05-18T12:29:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:P56WB2LIEV7VBYTBLORFPLDWTF","target":"record","payload":{"canonical_record":{"source":{"id":"1510.05921","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-10-20T14:48:30Z","cross_cats_sorted":[],"title_canon_sha256":"12ff57b8c700e6a888384394ff9cdc93a31971e1800bce15f4e1fa3f7dd3f321","abstract_canon_sha256":"c0f7a0b53f77f95ff270ce9fce6408cb755ba073cbea11ace287a648e553ca83"},"schema_version":"1.0"},"canonical_sha256":"7f7d60e968257f50e2615ba257ac769946362886eb74dea208dcc32c978ee06c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:18:31.228934Z","signature_b64":"3aucvj5YARYosrELajgXmRAxEYPb3TP5zxWp/0GPKnZKrrpxRxa53cSYSW1rRHOj37UQP79XhZ5nqX8c0/vRDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7f7d60e968257f50e2615ba257ac769946362886eb74dea208dcc32c978ee06c","last_reissued_at":"2026-05-18T01:18:31.228243Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:18:31.228243Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1510.05921","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":"2026-05-18T01:18:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hOVTOK5dQASXIPKII5V6bKF1NdG3Ky3r02aphL5uoemCIt+omnHy3NAfB6XSH3zJt0nYu2U8OgwVX8t36QZZBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T16:07:29.216249Z"},"content_sha256":"0832e442b10b7419a15610bf8bca0e678c43247d4bf9e35462d123abd49971ce","schema_version":"1.0","event_id":"sha256:0832e442b10b7419a15610bf8bca0e678c43247d4bf9e35462d123abd49971ce"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:P56WB2LIEV7VBYTBLORFPLDWTF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Double pulses and cascades above 2 PeV in IceCube","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Andrea Palladino, Francesco L. Villante, Francesco Vissani, Giulia Pagliaroli","submitted_at":"2015-10-20T14:48:30Z","abstract_excerpt":"IceCube collaboration has seen an unexpected population of high energy neutrinos compatible with an astrophysical origin. We consider two categories of events that can help to diagnose cosmic neutrinos: double pulse, that may allow us to clearly discriminate the cosmic component of tau neutrinos; cascades with deposited energy above 2 PeV, including events produced by electron antineutrinos at the Glashow resonance, that can be used to investigate the neutrino production mechanisms. We show that one half of the double pulse signal is due to the neutrinos spectral region already probed by IceCu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.05921","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":"2026-05-18T01:18:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7FmvGoodD5sfjTOX6F/VRaii9+xdl/VUaBYmV3sFgRJnNHFTj2hSNle7VVjWn8wR3VA80FOA1E3teWoDOsRoAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T16:07:29.216617Z"},"content_sha256":"337a1a4a477c99859d63e0af32e3f339cf268218441442afe5f11e774f9f2abc","schema_version":"1.0","event_id":"sha256:337a1a4a477c99859d63e0af32e3f339cf268218441442afe5f11e774f9f2abc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P56WB2LIEV7VBYTBLORFPLDWTF/bundle.json","state_url":"https://pith.science/pith/P56WB2LIEV7VBYTBLORFPLDWTF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P56WB2LIEV7VBYTBLORFPLDWTF/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":"2026-06-03T16:07:29Z","links":{"resolver":"https://pith.science/pith/P56WB2LIEV7VBYTBLORFPLDWTF","bundle":"https://pith.science/pith/P56WB2LIEV7VBYTBLORFPLDWTF/bundle.json","state":"https://pith.science/pith/P56WB2LIEV7VBYTBLORFPLDWTF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P56WB2LIEV7VBYTBLORFPLDWTF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:P56WB2LIEV7VBYTBLORFPLDWTF","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":"c0f7a0b53f77f95ff270ce9fce6408cb755ba073cbea11ace287a648e553ca83","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-10-20T14:48:30Z","title_canon_sha256":"12ff57b8c700e6a888384394ff9cdc93a31971e1800bce15f4e1fa3f7dd3f321"},"schema_version":"1.0","source":{"id":"1510.05921","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.05921","created_at":"2026-05-18T01:18:31Z"},{"alias_kind":"arxiv_version","alias_value":"1510.05921v2","created_at":"2026-05-18T01:18:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.05921","created_at":"2026-05-18T01:18:31Z"},{"alias_kind":"pith_short_12","alias_value":"P56WB2LIEV7V","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"P56WB2LIEV7VBYTB","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"P56WB2LI","created_at":"2026-05-18T12:29:34Z"}],"graph_snapshots":[{"event_id":"sha256:337a1a4a477c99859d63e0af32e3f339cf268218441442afe5f11e774f9f2abc","target":"graph","created_at":"2026-05-18T01:18:31Z","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"},"paper":{"abstract_excerpt":"IceCube collaboration has seen an unexpected population of high energy neutrinos compatible with an astrophysical origin. We consider two categories of events that can help to diagnose cosmic neutrinos: double pulse, that may allow us to clearly discriminate the cosmic component of tau neutrinos; cascades with deposited energy above 2 PeV, including events produced by electron antineutrinos at the Glashow resonance, that can be used to investigate the neutrino production mechanisms. We show that one half of the double pulse signal is due to the neutrinos spectral region already probed by IceCu","authors_text":"Andrea Palladino, Francesco L. Villante, Francesco Vissani, Giulia Pagliaroli","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-10-20T14:48:30Z","title":"Double pulses and cascades above 2 PeV in IceCube"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.05921","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":"sha256:0832e442b10b7419a15610bf8bca0e678c43247d4bf9e35462d123abd49971ce","target":"record","created_at":"2026-05-18T01:18:31Z","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":"c0f7a0b53f77f95ff270ce9fce6408cb755ba073cbea11ace287a648e553ca83","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-10-20T14:48:30Z","title_canon_sha256":"12ff57b8c700e6a888384394ff9cdc93a31971e1800bce15f4e1fa3f7dd3f321"},"schema_version":"1.0","source":{"id":"1510.05921","kind":"arxiv","version":2}},"canonical_sha256":"7f7d60e968257f50e2615ba257ac769946362886eb74dea208dcc32c978ee06c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7f7d60e968257f50e2615ba257ac769946362886eb74dea208dcc32c978ee06c","first_computed_at":"2026-05-18T01:18:31.228243Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:18:31.228243Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3aucvj5YARYosrELajgXmRAxEYPb3TP5zxWp/0GPKnZKrrpxRxa53cSYSW1rRHOj37UQP79XhZ5nqX8c0/vRDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:18:31.228934Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.05921","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0832e442b10b7419a15610bf8bca0e678c43247d4bf9e35462d123abd49971ce","sha256:337a1a4a477c99859d63e0af32e3f339cf268218441442afe5f11e774f9f2abc"],"state_sha256":"70ce7a1f6d9f2f4464b3c7163db9745624bad39fdd5dba685106aa65099c09e0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nuBul9X1T2FJhH85LL4hA6bNLYN7Sv6aty0tuoHpbXeuO1I8TK0b5MGBENrsIItenwiedN5W3absuHcJRzhyDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T16:07:29.218557Z","bundle_sha256":"1c0ea469ec41ee08e230e1ff9baa1ad11eef487fbece20788846b442fe642ceb"}}