{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:OY2EXSCKHSWC5WWWTYJQE55YR6","short_pith_number":"pith:OY2EXSCK","canonical_record":{"source":{"id":"1712.09122","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-12-25T19:59:26Z","cross_cats_sorted":[],"title_canon_sha256":"3effaf0467d72ae822f8ab0f48cfdbdab0d28433a4c38d18db9ae7118e6dba04","abstract_canon_sha256":"4c1168d3581ee9ab4cc22e32ce3407790b655ae0ffa827e3a16bb3dc43e95f12"},"schema_version":"1.0"},"canonical_sha256":"76344bc84a3cac2edad69e130277b88f9be8192725a480f7344329ea6246caf6","source":{"kind":"arxiv","id":"1712.09122","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.09122","created_at":"2026-05-18T00:25:50Z"},{"alias_kind":"arxiv_version","alias_value":"1712.09122v1","created_at":"2026-05-18T00:25:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.09122","created_at":"2026-05-18T00:25:50Z"},{"alias_kind":"pith_short_12","alias_value":"OY2EXSCKHSWC","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_16","alias_value":"OY2EXSCKHSWC5WWW","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_8","alias_value":"OY2EXSCK","created_at":"2026-05-18T12:31:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:OY2EXSCKHSWC5WWWTYJQE55YR6","target":"record","payload":{"canonical_record":{"source":{"id":"1712.09122","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-12-25T19:59:26Z","cross_cats_sorted":[],"title_canon_sha256":"3effaf0467d72ae822f8ab0f48cfdbdab0d28433a4c38d18db9ae7118e6dba04","abstract_canon_sha256":"4c1168d3581ee9ab4cc22e32ce3407790b655ae0ffa827e3a16bb3dc43e95f12"},"schema_version":"1.0"},"canonical_sha256":"76344bc84a3cac2edad69e130277b88f9be8192725a480f7344329ea6246caf6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:25:50.788790Z","signature_b64":"dWt2NsPuGXrBqqoi5QIQnQ6eD/RaRRkeqsKQLn9d7ACp/oh/0ZkhT0yZ1DLwxHDHmkTXqzTB28Hi2MVCjg+7Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"76344bc84a3cac2edad69e130277b88f9be8192725a480f7344329ea6246caf6","last_reissued_at":"2026-05-18T00:25:50.788332Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:25:50.788332Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1712.09122","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":"2026-05-18T00:25:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Mx0HB5RqhKunTLdrGGKkZXJnh/SKNkRS73sQBdyu1vrFuCX4c0kCSI/7Q7hIH0DwCpen3XRT3pJBM0UoGOsQBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:54:06.044883Z"},"content_sha256":"9cbfcb8f8bb49874ee6c7e343d5f974e643ca819e644ef7a0a4537c740e598dd","schema_version":"1.0","event_id":"sha256:9cbfcb8f8bb49874ee6c7e343d5f974e643ca819e644ef7a0a4537c740e598dd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:OY2EXSCKHSWC5WWWTYJQE55YR6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Search for the time evolution of the synchrotron X-ray spectrum of the youngest Galactic supernova remnant G1.9+0.3 using Suzaku","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Sezer, R. Yamazaki, S. Kisaka, S. Tanaka, Y. Ohira","submitted_at":"2017-12-25T19:59:26Z","abstract_excerpt":"G1.9+0.3 is the youngest known Galactic supernova remnant (SNR) and dominated by X-ray synchrotron emission. Synchrotron X-rays can be a useful tool to study the electron acceleration in young SNRs. The X-ray spectra of young SNRs give us information about the particle acceleration at the early stages of evolution of SNRs. In this work, we investigate the time evolution of roll-off frequency of the synchrotron spectrum from SNR G1.9+0.3 using Suzaku. For this analysis, we use ~101 ks (2011) and ~92 ks (2015) observations with the X-ray Imaging Spectrometer. We find that there are no significan"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.09122","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":"2026-05-18T00:25:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UFEpLewAiv77nT9IR/gbeBCz5LQ5+B0H0dOMxvtHQiPdMlqAFODuqQZKPsQy/ksFquwDoLW+pchHbxWeJTQ/Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:54:06.045549Z"},"content_sha256":"2822fa3b07b1b1d506e9bd43715f716a54a929386a7d6e7f1b2df86f4f065fc9","schema_version":"1.0","event_id":"sha256:2822fa3b07b1b1d506e9bd43715f716a54a929386a7d6e7f1b2df86f4f065fc9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OY2EXSCKHSWC5WWWTYJQE55YR6/bundle.json","state_url":"https://pith.science/pith/OY2EXSCKHSWC5WWWTYJQE55YR6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OY2EXSCKHSWC5WWWTYJQE55YR6/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":"2026-05-28T19:54:06Z","links":{"resolver":"https://pith.science/pith/OY2EXSCKHSWC5WWWTYJQE55YR6","bundle":"https://pith.science/pith/OY2EXSCKHSWC5WWWTYJQE55YR6/bundle.json","state":"https://pith.science/pith/OY2EXSCKHSWC5WWWTYJQE55YR6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OY2EXSCKHSWC5WWWTYJQE55YR6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:OY2EXSCKHSWC5WWWTYJQE55YR6","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":"4c1168d3581ee9ab4cc22e32ce3407790b655ae0ffa827e3a16bb3dc43e95f12","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-12-25T19:59:26Z","title_canon_sha256":"3effaf0467d72ae822f8ab0f48cfdbdab0d28433a4c38d18db9ae7118e6dba04"},"schema_version":"1.0","source":{"id":"1712.09122","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.09122","created_at":"2026-05-18T00:25:50Z"},{"alias_kind":"arxiv_version","alias_value":"1712.09122v1","created_at":"2026-05-18T00:25:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.09122","created_at":"2026-05-18T00:25:50Z"},{"alias_kind":"pith_short_12","alias_value":"OY2EXSCKHSWC","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_16","alias_value":"OY2EXSCKHSWC5WWW","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_8","alias_value":"OY2EXSCK","created_at":"2026-05-18T12:31:34Z"}],"graph_snapshots":[{"event_id":"sha256:2822fa3b07b1b1d506e9bd43715f716a54a929386a7d6e7f1b2df86f4f065fc9","target":"graph","created_at":"2026-05-18T00:25:50Z","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":"G1.9+0.3 is the youngest known Galactic supernova remnant (SNR) and dominated by X-ray synchrotron emission. Synchrotron X-rays can be a useful tool to study the electron acceleration in young SNRs. The X-ray spectra of young SNRs give us information about the particle acceleration at the early stages of evolution of SNRs. In this work, we investigate the time evolution of roll-off frequency of the synchrotron spectrum from SNR G1.9+0.3 using Suzaku. For this analysis, we use ~101 ks (2011) and ~92 ks (2015) observations with the X-ray Imaging Spectrometer. We find that there are no significan","authors_text":"A. Sezer, R. Yamazaki, S. Kisaka, S. Tanaka, Y. Ohira","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-12-25T19:59:26Z","title":"Search for the time evolution of the synchrotron X-ray spectrum of the youngest Galactic supernova remnant G1.9+0.3 using Suzaku"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.09122","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":"sha256:9cbfcb8f8bb49874ee6c7e343d5f974e643ca819e644ef7a0a4537c740e598dd","target":"record","created_at":"2026-05-18T00:25:50Z","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":"4c1168d3581ee9ab4cc22e32ce3407790b655ae0ffa827e3a16bb3dc43e95f12","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-12-25T19:59:26Z","title_canon_sha256":"3effaf0467d72ae822f8ab0f48cfdbdab0d28433a4c38d18db9ae7118e6dba04"},"schema_version":"1.0","source":{"id":"1712.09122","kind":"arxiv","version":1}},"canonical_sha256":"76344bc84a3cac2edad69e130277b88f9be8192725a480f7344329ea6246caf6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"76344bc84a3cac2edad69e130277b88f9be8192725a480f7344329ea6246caf6","first_computed_at":"2026-05-18T00:25:50.788332Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:25:50.788332Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dWt2NsPuGXrBqqoi5QIQnQ6eD/RaRRkeqsKQLn9d7ACp/oh/0ZkhT0yZ1DLwxHDHmkTXqzTB28Hi2MVCjg+7Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:25:50.788790Z","signed_message":"canonical_sha256_bytes"},"source_id":"1712.09122","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9cbfcb8f8bb49874ee6c7e343d5f974e643ca819e644ef7a0a4537c740e598dd","sha256:2822fa3b07b1b1d506e9bd43715f716a54a929386a7d6e7f1b2df86f4f065fc9"],"state_sha256":"71106a188e0ace6061bd502258dbd47311c9ff17386204a2d4f0d2d3798d49a9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0JhEazPjIeP0BwbNHjXDCAUuEO7dRaXGcwTPFtrm2W0GZX/5uCE6hoUq8cd98fa6C7lNU1hSTKDYzBoqkZ1JCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T19:54:06.049092Z","bundle_sha256":"26f70793ce168d28b200086fa21267c36daf45fa40a0b0878d2214e4c9630dd6"}}