{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:QWM5W2WKHRUV3G5RIPQ5ZQNNFW","short_pith_number":"pith:QWM5W2WK","canonical_record":{"source":{"id":"1808.00241","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-08-01T09:29:20Z","cross_cats_sorted":[],"title_canon_sha256":"cc1c7be8b48f8cfe109d967a9a34f8778f11725d8abb3eb3238d12862464ccd4","abstract_canon_sha256":"c196abc538be024eb002e21de9e40a810dbcbec728089e17f3a604b17bcfaeaa"},"schema_version":"1.0"},"canonical_sha256":"8599db6aca3c695d9bb143e1dcc1ad2dadcf16e0210bb985671b902204050158","source":{"kind":"arxiv","id":"1808.00241","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.00241","created_at":"2026-05-18T00:09:06Z"},{"alias_kind":"arxiv_version","alias_value":"1808.00241v1","created_at":"2026-05-18T00:09:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.00241","created_at":"2026-05-18T00:09:06Z"},{"alias_kind":"pith_short_12","alias_value":"QWM5W2WKHRUV","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"QWM5W2WKHRUV3G5R","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"QWM5W2WK","created_at":"2026-05-18T12:32:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:QWM5W2WKHRUV3G5RIPQ5ZQNNFW","target":"record","payload":{"canonical_record":{"source":{"id":"1808.00241","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-08-01T09:29:20Z","cross_cats_sorted":[],"title_canon_sha256":"cc1c7be8b48f8cfe109d967a9a34f8778f11725d8abb3eb3238d12862464ccd4","abstract_canon_sha256":"c196abc538be024eb002e21de9e40a810dbcbec728089e17f3a604b17bcfaeaa"},"schema_version":"1.0"},"canonical_sha256":"8599db6aca3c695d9bb143e1dcc1ad2dadcf16e0210bb985671b902204050158","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:09:06.738754Z","signature_b64":"OpFGYQevaJc+hxJDdHpgU0Z2l7bNiJTX8a0F0AR3gmNxn52GAkbfoBpETqBe415OxDgq8lcoC0N686XzLxs7CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8599db6aca3c695d9bb143e1dcc1ad2dadcf16e0210bb985671b902204050158","last_reissued_at":"2026-05-18T00:09:06.738232Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:09:06.738232Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.00241","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":"2026-05-18T00:09:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/Q7xjY/I1/KUZyR26VPpY8c96yfBDQeZgq+0diVZIVD9FKEcjKFh2KOHlrDoa/DPAf/zufzKAagS34nZ2yUpAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T22:54:10.383016Z"},"content_sha256":"fbade057b63c04a6a027ae8406bff7759c5899d0093573053212871ef546a44c","schema_version":"1.0","event_id":"sha256:fbade057b63c04a6a027ae8406bff7759c5899d0093573053212871ef546a44c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:QWM5W2WKHRUV3G5RIPQ5ZQNNFW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Estimating the NEMA characteristics of the J-PET tomograph using the GATE package","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"Aleksander Gajos, Beatrix Hiesmayr, Bo\\.zena Jasi\\'nska, Bo\\.zena Zgardzi\\'nska, Catalina Curceanu, Daria Kami\\'nska, Eryk Czerwi\\'nski, Ewelina Kubicz, Grzegorz Korcyl, Juhi Raj, Kamil Dulski, Kamil Rakoczy, Konrad Klimaszewski, Lech Raczy\\'nski, {\\L}ukasz Kap{\\l}on, Magdalena Skurzok, Marcin Zielinski, Marek Gorgol, Marek Pa{\\l}ka, Micha{\\l} Silarski, Monika Pawlik-Nied\\'zwiecka, Muhsin Mohammed, Neha Gupta-Sharma, Pawe{\\l} Kowalski, Pawe{\\l} Moskal, Roman Shopa, Shivani Shivani, Sushil Sharma, Szymon Niedzwiecki, Tomasz Kozik, Wojciech Krzemie\\'n, Wojciech Wi\\'slicki, Zbigniew Rudy","submitted_at":"2018-08-01T09:29:20Z","abstract_excerpt":"The novel whole-body PET system based on plastic scintillators is developed by the {J-PET} Collaboration. It consists of plastic scintillator strips arranged axially in the form of a cylinder, allowing the cost-effective construction of the total-body PET. In order to determine properties of the scanner prototype and optimize its geometry, advanced computer simulations using the GATE software were performed.\n  The spatial resolution, the sensitivity, the scatter fraction and the noise equivalent count rate were estimated according to the NEMA norm as a function of the length of the tomograph, "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.00241","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":"2026-05-18T00:09:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BlNKyVqKR3HkwprUb4mhp8E4zK776hXMv7ZfdJUeNOQdvOEOqYfnfHgr0nls6q5+SXRiq32Dj5zG49uN1E6rCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T22:54:10.383441Z"},"content_sha256":"605b46ffe3c65347081f9c78ed13d65f6d9d1ac8d33891fa9bc064e985884792","schema_version":"1.0","event_id":"sha256:605b46ffe3c65347081f9c78ed13d65f6d9d1ac8d33891fa9bc064e985884792"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QWM5W2WKHRUV3G5RIPQ5ZQNNFW/bundle.json","state_url":"https://pith.science/pith/QWM5W2WKHRUV3G5RIPQ5ZQNNFW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QWM5W2WKHRUV3G5RIPQ5ZQNNFW/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":"2026-05-26T22:54:10Z","links":{"resolver":"https://pith.science/pith/QWM5W2WKHRUV3G5RIPQ5ZQNNFW","bundle":"https://pith.science/pith/QWM5W2WKHRUV3G5RIPQ5ZQNNFW/bundle.json","state":"https://pith.science/pith/QWM5W2WKHRUV3G5RIPQ5ZQNNFW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QWM5W2WKHRUV3G5RIPQ5ZQNNFW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:QWM5W2WKHRUV3G5RIPQ5ZQNNFW","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":"c196abc538be024eb002e21de9e40a810dbcbec728089e17f3a604b17bcfaeaa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-08-01T09:29:20Z","title_canon_sha256":"cc1c7be8b48f8cfe109d967a9a34f8778f11725d8abb3eb3238d12862464ccd4"},"schema_version":"1.0","source":{"id":"1808.00241","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.00241","created_at":"2026-05-18T00:09:06Z"},{"alias_kind":"arxiv_version","alias_value":"1808.00241v1","created_at":"2026-05-18T00:09:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.00241","created_at":"2026-05-18T00:09:06Z"},{"alias_kind":"pith_short_12","alias_value":"QWM5W2WKHRUV","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"QWM5W2WKHRUV3G5R","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"QWM5W2WK","created_at":"2026-05-18T12:32:50Z"}],"graph_snapshots":[{"event_id":"sha256:605b46ffe3c65347081f9c78ed13d65f6d9d1ac8d33891fa9bc064e985884792","target":"graph","created_at":"2026-05-18T00:09:06Z","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 novel whole-body PET system based on plastic scintillators is developed by the {J-PET} Collaboration. It consists of plastic scintillator strips arranged axially in the form of a cylinder, allowing the cost-effective construction of the total-body PET. In order to determine properties of the scanner prototype and optimize its geometry, advanced computer simulations using the GATE software were performed.\n  The spatial resolution, the sensitivity, the scatter fraction and the noise equivalent count rate were estimated according to the NEMA norm as a function of the length of the tomograph, ","authors_text":"Aleksander Gajos, Beatrix Hiesmayr, Bo\\.zena Jasi\\'nska, Bo\\.zena Zgardzi\\'nska, Catalina Curceanu, Daria Kami\\'nska, Eryk Czerwi\\'nski, Ewelina Kubicz, Grzegorz Korcyl, Juhi Raj, Kamil Dulski, Kamil Rakoczy, Konrad Klimaszewski, Lech Raczy\\'nski, {\\L}ukasz Kap{\\l}on, Magdalena Skurzok, Marcin Zielinski, Marek Gorgol, Marek Pa{\\l}ka, Micha{\\l} Silarski, Monika Pawlik-Nied\\'zwiecka, Muhsin Mohammed, Neha Gupta-Sharma, Pawe{\\l} Kowalski, Pawe{\\l} Moskal, Roman Shopa, Shivani Shivani, Sushil Sharma, Szymon Niedzwiecki, Tomasz Kozik, Wojciech Krzemie\\'n, Wojciech Wi\\'slicki, Zbigniew Rudy","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-08-01T09:29:20Z","title":"Estimating the NEMA characteristics of the J-PET tomograph using the GATE package"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.00241","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:fbade057b63c04a6a027ae8406bff7759c5899d0093573053212871ef546a44c","target":"record","created_at":"2026-05-18T00:09:06Z","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":"c196abc538be024eb002e21de9e40a810dbcbec728089e17f3a604b17bcfaeaa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-08-01T09:29:20Z","title_canon_sha256":"cc1c7be8b48f8cfe109d967a9a34f8778f11725d8abb3eb3238d12862464ccd4"},"schema_version":"1.0","source":{"id":"1808.00241","kind":"arxiv","version":1}},"canonical_sha256":"8599db6aca3c695d9bb143e1dcc1ad2dadcf16e0210bb985671b902204050158","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8599db6aca3c695d9bb143e1dcc1ad2dadcf16e0210bb985671b902204050158","first_computed_at":"2026-05-18T00:09:06.738232Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:09:06.738232Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OpFGYQevaJc+hxJDdHpgU0Z2l7bNiJTX8a0F0AR3gmNxn52GAkbfoBpETqBe415OxDgq8lcoC0N686XzLxs7CQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:09:06.738754Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.00241","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fbade057b63c04a6a027ae8406bff7759c5899d0093573053212871ef546a44c","sha256:605b46ffe3c65347081f9c78ed13d65f6d9d1ac8d33891fa9bc064e985884792"],"state_sha256":"2317853473fe83867f3c1ec5f5e1453f92e077ad11f37fad30ccf33ec65965ad"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WOuDQ2hY0GWsS9KP1yHA5sffmTlq1gyWh43DdvzKxgYqGlxXkdiZnnCQtIAz5RPfjgtbDQiiYmQ0CCccybwaBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T22:54:10.385920Z","bundle_sha256":"28dfa9a15a88b2b8d685f707589a453786d581ac2462d06ec8317b77f0d8f7b6"}}