{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:6JB5F6YBAS2PVPJPDINTMF6FGK","short_pith_number":"pith:6JB5F6YB","canonical_record":{"source":{"id":"1407.0907","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-07-03T13:05:07Z","cross_cats_sorted":[],"title_canon_sha256":"4b96a6c83bac3ded3405d91b9350269de7ac6ad87f20de085628a18b91714347","abstract_canon_sha256":"2296238e24b1130941da07f4da8bda1f4da1c1c259d2a71189b30da26b644560"},"schema_version":"1.0"},"canonical_sha256":"f243d2fb0104b4fabd2f1a1b3617c532b43f7dfe30142681e6fac6d46ebffb82","source":{"kind":"arxiv","id":"1407.0907","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.0907","created_at":"2026-05-18T01:42:42Z"},{"alias_kind":"arxiv_version","alias_value":"1407.0907v2","created_at":"2026-05-18T01:42:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.0907","created_at":"2026-05-18T01:42:42Z"},{"alias_kind":"pith_short_12","alias_value":"6JB5F6YBAS2P","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"6JB5F6YBAS2PVPJP","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"6JB5F6YB","created_at":"2026-05-18T12:28:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:6JB5F6YBAS2PVPJPDINTMF6FGK","target":"record","payload":{"canonical_record":{"source":{"id":"1407.0907","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-07-03T13:05:07Z","cross_cats_sorted":[],"title_canon_sha256":"4b96a6c83bac3ded3405d91b9350269de7ac6ad87f20de085628a18b91714347","abstract_canon_sha256":"2296238e24b1130941da07f4da8bda1f4da1c1c259d2a71189b30da26b644560"},"schema_version":"1.0"},"canonical_sha256":"f243d2fb0104b4fabd2f1a1b3617c532b43f7dfe30142681e6fac6d46ebffb82","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:42:42.347615Z","signature_b64":"YA35qxPZiwA6MZ6reFMWFyqffJmMdimjmCm+yc50zxITa51QdioRh/fgHTsgEzsZxfyles6lOVWsbIFzsEDcCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f243d2fb0104b4fabd2f1a1b3617c532b43f7dfe30142681e6fac6d46ebffb82","last_reissued_at":"2026-05-18T01:42:42.346972Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:42:42.346972Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1407.0907","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":"2026-05-18T01:42:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Bg+GUjlY5OMOdfKOPGXN/+meIJX1ksDrHxgH1Xm8IZy1dfTZjlmtYzF/3N6UQ/PUuuPVkqJcU2QVJzrvihNCDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T05:32:12.137544Z"},"content_sha256":"a882ea0082f2bbd8ffa77565d147136f708ffe2eaa5ad4ce29f82c2dd7c98ce0","schema_version":"1.0","event_id":"sha256:a882ea0082f2bbd8ffa77565d147136f708ffe2eaa5ad4ce29f82c2dd7c98ce0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:6JB5F6YBAS2PVPJPDINTMF6FGK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Structured jets in BL Lac objects: efficient PeV neutrino factories?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"D. Guetta, F. Tavecchio, G. Ghisellini","submitted_at":"2014-07-03T13:05:07Z","abstract_excerpt":"The origin of the high-energy neutrinos (0.1$-$1 PeV range) detected by IceCube remains a mystery. In this work we explore the possibility that efficient neutrino production can occur in structured jets of BL Lac objects, characterized by a fast inner spine surrounded by a slower layer. This scenario has been widely discussed in the framework of the high-energy emission models for BL Lacs and radiogalaxies. One of the relevant consequences of a velocity structure is the enhancement of the inverse Compton emission caused by the radiative coupling of the two zones. We show that a similar boostin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.0907","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":"2026-05-18T01:42:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r02vsKlbhfZ3xdWZoo/YDuNj5UaDu7qbs+aFwxChuybAEFvV07XlWdAFMI2RQDy+XXX+wObOF7Umj2ZVMNjXBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T05:32:12.137889Z"},"content_sha256":"9257f545a768e7333e36e78270e9d6caf7f1c92fc79b54c0ed651a1bde969373","schema_version":"1.0","event_id":"sha256:9257f545a768e7333e36e78270e9d6caf7f1c92fc79b54c0ed651a1bde969373"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6JB5F6YBAS2PVPJPDINTMF6FGK/bundle.json","state_url":"https://pith.science/pith/6JB5F6YBAS2PVPJPDINTMF6FGK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6JB5F6YBAS2PVPJPDINTMF6FGK/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":"2026-06-27T05:32:12Z","links":{"resolver":"https://pith.science/pith/6JB5F6YBAS2PVPJPDINTMF6FGK","bundle":"https://pith.science/pith/6JB5F6YBAS2PVPJPDINTMF6FGK/bundle.json","state":"https://pith.science/pith/6JB5F6YBAS2PVPJPDINTMF6FGK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6JB5F6YBAS2PVPJPDINTMF6FGK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:6JB5F6YBAS2PVPJPDINTMF6FGK","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":"2296238e24b1130941da07f4da8bda1f4da1c1c259d2a71189b30da26b644560","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-07-03T13:05:07Z","title_canon_sha256":"4b96a6c83bac3ded3405d91b9350269de7ac6ad87f20de085628a18b91714347"},"schema_version":"1.0","source":{"id":"1407.0907","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.0907","created_at":"2026-05-18T01:42:42Z"},{"alias_kind":"arxiv_version","alias_value":"1407.0907v2","created_at":"2026-05-18T01:42:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.0907","created_at":"2026-05-18T01:42:42Z"},{"alias_kind":"pith_short_12","alias_value":"6JB5F6YBAS2P","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"6JB5F6YBAS2PVPJP","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"6JB5F6YB","created_at":"2026-05-18T12:28:16Z"}],"graph_snapshots":[{"event_id":"sha256:9257f545a768e7333e36e78270e9d6caf7f1c92fc79b54c0ed651a1bde969373","target":"graph","created_at":"2026-05-18T01:42:42Z","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 origin of the high-energy neutrinos (0.1$-$1 PeV range) detected by IceCube remains a mystery. In this work we explore the possibility that efficient neutrino production can occur in structured jets of BL Lac objects, characterized by a fast inner spine surrounded by a slower layer. This scenario has been widely discussed in the framework of the high-energy emission models for BL Lacs and radiogalaxies. One of the relevant consequences of a velocity structure is the enhancement of the inverse Compton emission caused by the radiative coupling of the two zones. We show that a similar boostin","authors_text":"D. Guetta, F. Tavecchio, G. Ghisellini","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-07-03T13:05:07Z","title":"Structured jets in BL Lac objects: efficient PeV neutrino factories?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.0907","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:a882ea0082f2bbd8ffa77565d147136f708ffe2eaa5ad4ce29f82c2dd7c98ce0","target":"record","created_at":"2026-05-18T01:42:42Z","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":"2296238e24b1130941da07f4da8bda1f4da1c1c259d2a71189b30da26b644560","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-07-03T13:05:07Z","title_canon_sha256":"4b96a6c83bac3ded3405d91b9350269de7ac6ad87f20de085628a18b91714347"},"schema_version":"1.0","source":{"id":"1407.0907","kind":"arxiv","version":2}},"canonical_sha256":"f243d2fb0104b4fabd2f1a1b3617c532b43f7dfe30142681e6fac6d46ebffb82","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f243d2fb0104b4fabd2f1a1b3617c532b43f7dfe30142681e6fac6d46ebffb82","first_computed_at":"2026-05-18T01:42:42.346972Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:42:42.346972Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YA35qxPZiwA6MZ6reFMWFyqffJmMdimjmCm+yc50zxITa51QdioRh/fgHTsgEzsZxfyles6lOVWsbIFzsEDcCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:42:42.347615Z","signed_message":"canonical_sha256_bytes"},"source_id":"1407.0907","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a882ea0082f2bbd8ffa77565d147136f708ffe2eaa5ad4ce29f82c2dd7c98ce0","sha256:9257f545a768e7333e36e78270e9d6caf7f1c92fc79b54c0ed651a1bde969373"],"state_sha256":"1157eb442b3ce40cc787de5c63f6efe51cf09abfb924d1493adacd86bc8a49d1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k6pt1gDbPgCzGRfmSJMmAXZ9/bb2DHJC2mWB52waVJMtiK8l5UKSjU4b5I9ZwNQEtqEoBAlPOIyPZaaTJytACA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-27T05:32:12.139948Z","bundle_sha256":"38e1d1a6e9e3416f57c446f566410d544316caee5b1f68c154858cd6adedb52c"}}