{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:FCVJKWRABBZIPWFYETACYLWRZ5","short_pith_number":"pith:FCVJKWRA","canonical_record":{"source":{"id":"1708.08067","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-08-27T08:42:22Z","cross_cats_sorted":[],"title_canon_sha256":"74e78e27e55cfdf2e610e9ab10c683b0e7dccb6dae22e7f1fe0961260f7df500","abstract_canon_sha256":"10016ba5b4b8de014dba6186e8028ba45d28ab4c46caed34e00c1d85fc6ff9e3"},"schema_version":"1.0"},"canonical_sha256":"28aa955a20087287d8b824c02c2ed1cf61ad207719824c4a9d3e4a4b4cd3f579","source":{"kind":"arxiv","id":"1708.08067","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.08067","created_at":"2026-05-18T00:33:48Z"},{"alias_kind":"arxiv_version","alias_value":"1708.08067v1","created_at":"2026-05-18T00:33:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.08067","created_at":"2026-05-18T00:33:48Z"},{"alias_kind":"pith_short_12","alias_value":"FCVJKWRABBZI","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"FCVJKWRABBZIPWFY","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"FCVJKWRA","created_at":"2026-05-18T12:31:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:FCVJKWRABBZIPWFYETACYLWRZ5","target":"record","payload":{"canonical_record":{"source":{"id":"1708.08067","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-08-27T08:42:22Z","cross_cats_sorted":[],"title_canon_sha256":"74e78e27e55cfdf2e610e9ab10c683b0e7dccb6dae22e7f1fe0961260f7df500","abstract_canon_sha256":"10016ba5b4b8de014dba6186e8028ba45d28ab4c46caed34e00c1d85fc6ff9e3"},"schema_version":"1.0"},"canonical_sha256":"28aa955a20087287d8b824c02c2ed1cf61ad207719824c4a9d3e4a4b4cd3f579","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:33:48.543844Z","signature_b64":"sAcLknVmV0P6tvR2unQY201JXWY1QzorLN1uAoc8p7RiNzHoVmbDh8rUlyep3MVJm4vHC2K6t1DFayJ09N+LDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"28aa955a20087287d8b824c02c2ed1cf61ad207719824c4a9d3e4a4b4cd3f579","last_reissued_at":"2026-05-18T00:33:48.543362Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:33:48.543362Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1708.08067","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":"2026-05-18T00:33:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HKgn94hHEPppkbZHS38ZDa+qtP4rk1rHWlNAQ7CuloiGnvemDHyoSPQqSXIBjO9lk2jm6LQab5esYkhYtcuLDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T10:22:24.065017Z"},"content_sha256":"8596fb98a166d03fab1c3a5d087f93bb5efaf2fd49bc9b00c3216fea51c47d6e","schema_version":"1.0","event_id":"sha256:8596fb98a166d03fab1c3a5d087f93bb5efaf2fd49bc9b00c3216fea51c47d6e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:FCVJKWRABBZIPWFYETACYLWRZ5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Broadband Spectral Investigations of Magnetar Bursts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Demet Kirmizibayrak (Sabanci University, Ersin Gogus, Istanbul), Sinem Sasmaz Mus, Yuki Kaneko","submitted_at":"2017-08-27T08:42:22Z","abstract_excerpt":"We present our broadband (2 - 250 keV) time-averaged spectral analysis of 388 bursts from SGR J1550-5418, SGR 1900+14 and SGR 1806-20 detected with the Rossi X-ray Timing Explorer (RXTE) here and as a database in a companion web-catalog. We find that two blackbody functions (BB+BB), sum of two modified blackbody functions (LB+LB), sum of blackbody and powerlaw functions (BB+PO) and a power law with a high energy exponential cut-off (COMPT) all provide acceptable fits at similar levels. We performed numerical simulations to constrain the best fitting model for each burst spectrum and found that"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.08067","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":"2026-05-18T00:33:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/BAf7o+nfGS7z96r7GDTrH+4RiZpgxFiTwkW9UG06gD5M7khChsk8IciXB9vndfohPQLxpTHFLmcCmyvzoCCBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T10:22:24.065375Z"},"content_sha256":"5d8ff8c0748133216f8590e582fa04023d902879d9a14c143a1c0094ca8ed2bc","schema_version":"1.0","event_id":"sha256:5d8ff8c0748133216f8590e582fa04023d902879d9a14c143a1c0094ca8ed2bc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FCVJKWRABBZIPWFYETACYLWRZ5/bundle.json","state_url":"https://pith.science/pith/FCVJKWRABBZIPWFYETACYLWRZ5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FCVJKWRABBZIPWFYETACYLWRZ5/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":"2026-06-08T10:22:24Z","links":{"resolver":"https://pith.science/pith/FCVJKWRABBZIPWFYETACYLWRZ5","bundle":"https://pith.science/pith/FCVJKWRABBZIPWFYETACYLWRZ5/bundle.json","state":"https://pith.science/pith/FCVJKWRABBZIPWFYETACYLWRZ5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FCVJKWRABBZIPWFYETACYLWRZ5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:FCVJKWRABBZIPWFYETACYLWRZ5","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":"10016ba5b4b8de014dba6186e8028ba45d28ab4c46caed34e00c1d85fc6ff9e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-08-27T08:42:22Z","title_canon_sha256":"74e78e27e55cfdf2e610e9ab10c683b0e7dccb6dae22e7f1fe0961260f7df500"},"schema_version":"1.0","source":{"id":"1708.08067","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.08067","created_at":"2026-05-18T00:33:48Z"},{"alias_kind":"arxiv_version","alias_value":"1708.08067v1","created_at":"2026-05-18T00:33:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.08067","created_at":"2026-05-18T00:33:48Z"},{"alias_kind":"pith_short_12","alias_value":"FCVJKWRABBZI","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"FCVJKWRABBZIPWFY","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"FCVJKWRA","created_at":"2026-05-18T12:31:15Z"}],"graph_snapshots":[{"event_id":"sha256:5d8ff8c0748133216f8590e582fa04023d902879d9a14c143a1c0094ca8ed2bc","target":"graph","created_at":"2026-05-18T00:33:48Z","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":"We present our broadband (2 - 250 keV) time-averaged spectral analysis of 388 bursts from SGR J1550-5418, SGR 1900+14 and SGR 1806-20 detected with the Rossi X-ray Timing Explorer (RXTE) here and as a database in a companion web-catalog. We find that two blackbody functions (BB+BB), sum of two modified blackbody functions (LB+LB), sum of blackbody and powerlaw functions (BB+PO) and a power law with a high energy exponential cut-off (COMPT) all provide acceptable fits at similar levels. We performed numerical simulations to constrain the best fitting model for each burst spectrum and found that","authors_text":"Demet Kirmizibayrak (Sabanci University, Ersin Gogus, Istanbul), Sinem Sasmaz Mus, Yuki Kaneko","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-08-27T08:42:22Z","title":"Broadband Spectral Investigations of Magnetar Bursts"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.08067","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":"sha256:8596fb98a166d03fab1c3a5d087f93bb5efaf2fd49bc9b00c3216fea51c47d6e","target":"record","created_at":"2026-05-18T00:33:48Z","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":"10016ba5b4b8de014dba6186e8028ba45d28ab4c46caed34e00c1d85fc6ff9e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-08-27T08:42:22Z","title_canon_sha256":"74e78e27e55cfdf2e610e9ab10c683b0e7dccb6dae22e7f1fe0961260f7df500"},"schema_version":"1.0","source":{"id":"1708.08067","kind":"arxiv","version":1}},"canonical_sha256":"28aa955a20087287d8b824c02c2ed1cf61ad207719824c4a9d3e4a4b4cd3f579","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"28aa955a20087287d8b824c02c2ed1cf61ad207719824c4a9d3e4a4b4cd3f579","first_computed_at":"2026-05-18T00:33:48.543362Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:33:48.543362Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sAcLknVmV0P6tvR2unQY201JXWY1QzorLN1uAoc8p7RiNzHoVmbDh8rUlyep3MVJm4vHC2K6t1DFayJ09N+LDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:33:48.543844Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.08067","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8596fb98a166d03fab1c3a5d087f93bb5efaf2fd49bc9b00c3216fea51c47d6e","sha256:5d8ff8c0748133216f8590e582fa04023d902879d9a14c143a1c0094ca8ed2bc"],"state_sha256":"be01cf529af995ebff140cc6c5456fd97d7022a3f7d0e6416259429537b97e24"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZbjaPuRRirrcnZeL5BbWCC8YeHDIIV3LjJPmTkIhzTVNQ8OI7tyb1HPAJPqq2Fhlhr+daPo2HnKa86eNjD6SCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T10:22:24.067457Z","bundle_sha256":"3bc49ddfd8a3bd1753beb49cb036b76b7ebaedb5a08c1afff5ad800e229de66c"}}