{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:M2GVCBQ462NVE4J4KYQE4EI5IB","short_pith_number":"pith:M2GVCBQ4","canonical_record":{"source":{"id":"2210.01457","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2022-10-04T08:31:14Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"8652355e47317817e70902915c6b700b6aaa6cdf53b521b33608fd4966c1c5ec","abstract_canon_sha256":"f5bd50380740173ff17e008b8e804b6dcea67aa8278dbd37bbbf6cadd07c3cea"},"schema_version":"1.0"},"canonical_sha256":"668d51061cf69b52713c56204e111d405a2e05a73f0499d7be239b469a6d229f","source":{"kind":"arxiv","id":"2210.01457","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2210.01457","created_at":"2026-07-05T05:05:10Z"},{"alias_kind":"arxiv_version","alias_value":"2210.01457v2","created_at":"2026-07-05T05:05:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2210.01457","created_at":"2026-07-05T05:05:10Z"},{"alias_kind":"pith_short_12","alias_value":"M2GVCBQ462NV","created_at":"2026-07-05T05:05:10Z"},{"alias_kind":"pith_short_16","alias_value":"M2GVCBQ462NVE4J4","created_at":"2026-07-05T05:05:10Z"},{"alias_kind":"pith_short_8","alias_value":"M2GVCBQ4","created_at":"2026-07-05T05:05:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:M2GVCBQ462NVE4J4KYQE4EI5IB","target":"record","payload":{"canonical_record":{"source":{"id":"2210.01457","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2022-10-04T08:31:14Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"8652355e47317817e70902915c6b700b6aaa6cdf53b521b33608fd4966c1c5ec","abstract_canon_sha256":"f5bd50380740173ff17e008b8e804b6dcea67aa8278dbd37bbbf6cadd07c3cea"},"schema_version":"1.0"},"canonical_sha256":"668d51061cf69b52713c56204e111d405a2e05a73f0499d7be239b469a6d229f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:05:10.089412Z","signature_b64":"aGis5nHPu1DSiYG55WpefDd3RtrMGh4Nk/M5X1FVP/KC0NAczJB1v4WJPjrDLOWeKB7OGrZawZQc4daWDXlxDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"668d51061cf69b52713c56204e111d405a2e05a73f0499d7be239b469a6d229f","last_reissued_at":"2026-07-05T05:05:10.088933Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:05:10.088933Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2210.01457","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":"2026-07-05T05:05:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QWZC9smAnlMCIaW1ZkZBidNcbo7LiniQozgnNmVzb0xSwLjQOR2SROYkwlM2/uC/CHS2rTz8VV9swJCKxkR5Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T05:06:05.862364Z"},"content_sha256":"3bfac3f82a54d5f3350b9d82a2ab6522ec53ce6bf4524287edf6af5f474e412b","schema_version":"1.0","event_id":"sha256:3bfac3f82a54d5f3350b9d82a2ab6522ec53ce6bf4524287edf6af5f474e412b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:M2GVCBQ462NVE4J4KYQE4EI5IB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Proton Irradiation of SiPM arrays for POLAR-2","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"astro-ph.IM","authors_text":"Agnieszka Pollo, Damian Wrobel, Dominik Rybka, Hancheng Li, Jan Swakon, Jerzy Mietelski, Jianchao Sun, Johannes Hulsman, Merlin Kole, Nicolas De Angelis, Sebastian Kusyk, Slawomir Mianowski, Tomasz Kowalski, Xin Wu, Zuzanna Mianowska","submitted_at":"2022-10-04T08:31:14Z","abstract_excerpt":"POLAR-2 is a space-borne polarimeter, built to investigate the polarization of Gamma-Ray Bursts and help elucidate their mechanisms. The instrument is targeted for launch in 2024 or 2025 aboard the China Space Station and is being developed by a collaboration between institutes from Switzerland, Germany, Poland and China.\n  The instrument will orbit at altitudes between 340km and 450km with an inclination of 42$^{\\circ}$ and will be subjected to background radiation from cosmic rays and solar events. It is therefore pertinent to better understand the performance of sensitive devices under spac"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2210.01457","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2210.01457/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":"2026-07-05T05:05:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bZWdgYW6MUq/2RpHhrqZHCcKjU/e+CUsRYuMDbsY3f1JjopZtqDfGb2laNOm0aLakWscPKJzE+k7eXTVBzL6Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T05:06:05.862746Z"},"content_sha256":"d4a3af662b676760dfebb9968b469c7666be85a36226bc8fb1b92c99ab53b438","schema_version":"1.0","event_id":"sha256:d4a3af662b676760dfebb9968b469c7666be85a36226bc8fb1b92c99ab53b438"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/M2GVCBQ462NVE4J4KYQE4EI5IB/bundle.json","state_url":"https://pith.science/pith/M2GVCBQ462NVE4J4KYQE4EI5IB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/M2GVCBQ462NVE4J4KYQE4EI5IB/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":"2026-07-06T05:06:05Z","links":{"resolver":"https://pith.science/pith/M2GVCBQ462NVE4J4KYQE4EI5IB","bundle":"https://pith.science/pith/M2GVCBQ462NVE4J4KYQE4EI5IB/bundle.json","state":"https://pith.science/pith/M2GVCBQ462NVE4J4KYQE4EI5IB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/M2GVCBQ462NVE4J4KYQE4EI5IB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:M2GVCBQ462NVE4J4KYQE4EI5IB","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":"f5bd50380740173ff17e008b8e804b6dcea67aa8278dbd37bbbf6cadd07c3cea","cross_cats_sorted":["physics.ins-det"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2022-10-04T08:31:14Z","title_canon_sha256":"8652355e47317817e70902915c6b700b6aaa6cdf53b521b33608fd4966c1c5ec"},"schema_version":"1.0","source":{"id":"2210.01457","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2210.01457","created_at":"2026-07-05T05:05:10Z"},{"alias_kind":"arxiv_version","alias_value":"2210.01457v2","created_at":"2026-07-05T05:05:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2210.01457","created_at":"2026-07-05T05:05:10Z"},{"alias_kind":"pith_short_12","alias_value":"M2GVCBQ462NV","created_at":"2026-07-05T05:05:10Z"},{"alias_kind":"pith_short_16","alias_value":"M2GVCBQ462NVE4J4","created_at":"2026-07-05T05:05:10Z"},{"alias_kind":"pith_short_8","alias_value":"M2GVCBQ4","created_at":"2026-07-05T05:05:10Z"}],"graph_snapshots":[{"event_id":"sha256:d4a3af662b676760dfebb9968b469c7666be85a36226bc8fb1b92c99ab53b438","target":"graph","created_at":"2026-07-05T05:05:10Z","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/2210.01457/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"POLAR-2 is a space-borne polarimeter, built to investigate the polarization of Gamma-Ray Bursts and help elucidate their mechanisms. The instrument is targeted for launch in 2024 or 2025 aboard the China Space Station and is being developed by a collaboration between institutes from Switzerland, Germany, Poland and China.\n  The instrument will orbit at altitudes between 340km and 450km with an inclination of 42$^{\\circ}$ and will be subjected to background radiation from cosmic rays and solar events. It is therefore pertinent to better understand the performance of sensitive devices under spac","authors_text":"Agnieszka Pollo, Damian Wrobel, Dominik Rybka, Hancheng Li, Jan Swakon, Jerzy Mietelski, Jianchao Sun, Johannes Hulsman, Merlin Kole, Nicolas De Angelis, Sebastian Kusyk, Slawomir Mianowski, Tomasz Kowalski, Xin Wu, Zuzanna Mianowska","cross_cats":["physics.ins-det"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2022-10-04T08:31:14Z","title":"Proton Irradiation of SiPM arrays for POLAR-2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2210.01457","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":"sha256:3bfac3f82a54d5f3350b9d82a2ab6522ec53ce6bf4524287edf6af5f474e412b","target":"record","created_at":"2026-07-05T05:05:10Z","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":"f5bd50380740173ff17e008b8e804b6dcea67aa8278dbd37bbbf6cadd07c3cea","cross_cats_sorted":["physics.ins-det"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2022-10-04T08:31:14Z","title_canon_sha256":"8652355e47317817e70902915c6b700b6aaa6cdf53b521b33608fd4966c1c5ec"},"schema_version":"1.0","source":{"id":"2210.01457","kind":"arxiv","version":2}},"canonical_sha256":"668d51061cf69b52713c56204e111d405a2e05a73f0499d7be239b469a6d229f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"668d51061cf69b52713c56204e111d405a2e05a73f0499d7be239b469a6d229f","first_computed_at":"2026-07-05T05:05:10.088933Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:05:10.088933Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aGis5nHPu1DSiYG55WpefDd3RtrMGh4Nk/M5X1FVP/KC0NAczJB1v4WJPjrDLOWeKB7OGrZawZQc4daWDXlxDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:05:10.089412Z","signed_message":"canonical_sha256_bytes"},"source_id":"2210.01457","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3bfac3f82a54d5f3350b9d82a2ab6522ec53ce6bf4524287edf6af5f474e412b","sha256:d4a3af662b676760dfebb9968b469c7666be85a36226bc8fb1b92c99ab53b438"],"state_sha256":"f0cc66d7e5b195f215a498d32fc88794a2e6ecc91a3382369873a09c7aa16766"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zKEyS5ieHYgX4dxkSy0/OtsN0uHCi64H6gxu4be4S/1G2H5GUEQ4L0pnroihCidVMqAwQlErv+UDIdwytVLnAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T05:06:05.864762Z","bundle_sha256":"66ce687e32b8767650a64bb3e9fb47e20c3b8cd58c1c998e0877ba6b558d2473"}}