{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:3R4EH6DOEX633NTDYLV4GDTVZC","short_pith_number":"pith:3R4EH6DO","canonical_record":{"source":{"id":"0712.2445","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-12-14T20:31:48Z","cross_cats_sorted":[],"title_canon_sha256":"0c9ae15c43788bf40c7e6f72f0aa6c75fd3cc8dc5c658e8e802b9232dc827a3b","abstract_canon_sha256":"10c602f0d967bbb86595e087a91da05152761feec2ce4fe749e719a767f3a20b"},"schema_version":"1.0"},"canonical_sha256":"dc7843f86e25fdbdb663c2ebc30e75c887edb8bd2fbf31af5ceacedb66f1d285","source":{"kind":"arxiv","id":"0712.2445","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0712.2445","created_at":"2026-07-04T15:28:03Z"},{"alias_kind":"arxiv_version","alias_value":"0712.2445v1","created_at":"2026-07-04T15:28:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0712.2445","created_at":"2026-07-04T15:28:03Z"},{"alias_kind":"pith_short_12","alias_value":"3R4EH6DOEX63","created_at":"2026-07-04T15:28:03Z"},{"alias_kind":"pith_short_16","alias_value":"3R4EH6DOEX633NTD","created_at":"2026-07-04T15:28:03Z"},{"alias_kind":"pith_short_8","alias_value":"3R4EH6DO","created_at":"2026-07-04T15:28:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:3R4EH6DOEX633NTDYLV4GDTVZC","target":"record","payload":{"canonical_record":{"source":{"id":"0712.2445","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-12-14T20:31:48Z","cross_cats_sorted":[],"title_canon_sha256":"0c9ae15c43788bf40c7e6f72f0aa6c75fd3cc8dc5c658e8e802b9232dc827a3b","abstract_canon_sha256":"10c602f0d967bbb86595e087a91da05152761feec2ce4fe749e719a767f3a20b"},"schema_version":"1.0"},"canonical_sha256":"dc7843f86e25fdbdb663c2ebc30e75c887edb8bd2fbf31af5ceacedb66f1d285","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:28:03.934268Z","signature_b64":"AO2gorqxeGGG2U9nA0mInfQ58eODWPG83V2F0xVzEtinDNtkw7knI4t0vuSKjI5DEZfnPgjNjS7+4NUpvUojAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dc7843f86e25fdbdb663c2ebc30e75c887edb8bd2fbf31af5ceacedb66f1d285","last_reissued_at":"2026-07-04T15:28:03.933876Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:28:03.933876Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0712.2445","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":"2026-07-04T15:28:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vckgb+PH/jouxWs+dJ1kjmEwHQLcHEE1PpFbeRWGUg4o3BE3Dt7wbnPmJarOPgNqlK+WRxGo68y3IxHaipaTAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T15:55:26.861881Z"},"content_sha256":"7976f709fc4e788cb9e043bad3ae2cf7e504d3d4e3cc1118c2bda3228370024f","schema_version":"1.0","event_id":"sha256:7976f709fc4e788cb9e043bad3ae2cf7e504d3d4e3cc1118c2bda3228370024f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:3R4EH6DOEX633NTDYLV4GDTVZC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An orientable time of flight detector for cosmic rays","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Sergi, M. Iori","submitted_at":"2007-12-14T20:31:48Z","abstract_excerpt":"Cosmic ray studies, in particular UHECR, can be in general supported by a directional, easy deployable, simple and robust detector. The design of this detector is based on the time of flight between two parallel tiles of scintillator, to distinguish particle passing through in opposite directions; by fine time resolution and pretty adjustable acceptance it is possible to select upward(left)/downward(right) cosmic rays. It has been developed for an array of detectors to measure upward $\\tau$ from Earth-Skimming neutrino events with energy above $10^8 GeV$. The properties and performances of the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0712.2445","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0712.2445/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T15:28:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"So/DpUHvttDGxb29fFL901zZGymMu3mdZQQ/OYHPSKosN8XLOR/tf8/8qgmxXUWFlzrj9urNJgiLPsTwZY+gAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T15:55:26.862241Z"},"content_sha256":"4b5c6c42520df9f0198a2e42eabd44903f65ddb8f3b2a2ffe7c71f338f82a24b","schema_version":"1.0","event_id":"sha256:4b5c6c42520df9f0198a2e42eabd44903f65ddb8f3b2a2ffe7c71f338f82a24b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3R4EH6DOEX633NTDYLV4GDTVZC/bundle.json","state_url":"https://pith.science/pith/3R4EH6DOEX633NTDYLV4GDTVZC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3R4EH6DOEX633NTDYLV4GDTVZC/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":"2026-07-07T15:55:26Z","links":{"resolver":"https://pith.science/pith/3R4EH6DOEX633NTDYLV4GDTVZC","bundle":"https://pith.science/pith/3R4EH6DOEX633NTDYLV4GDTVZC/bundle.json","state":"https://pith.science/pith/3R4EH6DOEX633NTDYLV4GDTVZC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3R4EH6DOEX633NTDYLV4GDTVZC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:3R4EH6DOEX633NTDYLV4GDTVZC","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":"10c602f0d967bbb86595e087a91da05152761feec2ce4fe749e719a767f3a20b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-12-14T20:31:48Z","title_canon_sha256":"0c9ae15c43788bf40c7e6f72f0aa6c75fd3cc8dc5c658e8e802b9232dc827a3b"},"schema_version":"1.0","source":{"id":"0712.2445","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0712.2445","created_at":"2026-07-04T15:28:03Z"},{"alias_kind":"arxiv_version","alias_value":"0712.2445v1","created_at":"2026-07-04T15:28:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0712.2445","created_at":"2026-07-04T15:28:03Z"},{"alias_kind":"pith_short_12","alias_value":"3R4EH6DOEX63","created_at":"2026-07-04T15:28:03Z"},{"alias_kind":"pith_short_16","alias_value":"3R4EH6DOEX633NTD","created_at":"2026-07-04T15:28:03Z"},{"alias_kind":"pith_short_8","alias_value":"3R4EH6DO","created_at":"2026-07-04T15:28:03Z"}],"graph_snapshots":[{"event_id":"sha256:4b5c6c42520df9f0198a2e42eabd44903f65ddb8f3b2a2ffe7c71f338f82a24b","target":"graph","created_at":"2026-07-04T15:28:03Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/0712.2445/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Cosmic ray studies, in particular UHECR, can be in general supported by a directional, easy deployable, simple and robust detector. The design of this detector is based on the time of flight between two parallel tiles of scintillator, to distinguish particle passing through in opposite directions; by fine time resolution and pretty adjustable acceptance it is possible to select upward(left)/downward(right) cosmic rays. It has been developed for an array of detectors to measure upward $\\tau$ from Earth-Skimming neutrino events with energy above $10^8 GeV$. The properties and performances of the","authors_text":"A. Sergi, M. Iori","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-12-14T20:31:48Z","title":"An orientable time of flight detector for cosmic rays"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0712.2445","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":"sha256:7976f709fc4e788cb9e043bad3ae2cf7e504d3d4e3cc1118c2bda3228370024f","target":"record","created_at":"2026-07-04T15:28:03Z","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":"10c602f0d967bbb86595e087a91da05152761feec2ce4fe749e719a767f3a20b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-12-14T20:31:48Z","title_canon_sha256":"0c9ae15c43788bf40c7e6f72f0aa6c75fd3cc8dc5c658e8e802b9232dc827a3b"},"schema_version":"1.0","source":{"id":"0712.2445","kind":"arxiv","version":1}},"canonical_sha256":"dc7843f86e25fdbdb663c2ebc30e75c887edb8bd2fbf31af5ceacedb66f1d285","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dc7843f86e25fdbdb663c2ebc30e75c887edb8bd2fbf31af5ceacedb66f1d285","first_computed_at":"2026-07-04T15:28:03.933876Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:28:03.933876Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AO2gorqxeGGG2U9nA0mInfQ58eODWPG83V2F0xVzEtinDNtkw7knI4t0vuSKjI5DEZfnPgjNjS7+4NUpvUojAg==","signature_status":"signed_v1","signed_at":"2026-07-04T15:28:03.934268Z","signed_message":"canonical_sha256_bytes"},"source_id":"0712.2445","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7976f709fc4e788cb9e043bad3ae2cf7e504d3d4e3cc1118c2bda3228370024f","sha256:4b5c6c42520df9f0198a2e42eabd44903f65ddb8f3b2a2ffe7c71f338f82a24b"],"state_sha256":"f20a483de356bacc20975ee5bf93f2cea1f1fa3508d9ada353da40c15acbff52"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XJ7e3gsgVFqb2r4/Azp5tvFHyuSBzmO1PGC7I3R+NWvSRfGXiqVSFu/zdcBi8h/jL0lL2n/ziRdI8VTqNiIRAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T15:55:26.864139Z","bundle_sha256":"0d3481f803a66e96212de0548c2962b6cbf487463949e8b226860c6b48ac06f9"}}