{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:PTJK6M47UYOSQW35TAFFL2UQGA","short_pith_number":"pith:PTJK6M47","canonical_record":{"source":{"id":"1805.02870","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-05-08T07:41:08Z","cross_cats_sorted":[],"title_canon_sha256":"5f39fb9be0e610498398f0f82673267b53a2073cc76ceb02644e02355bea83ac","abstract_canon_sha256":"b947e469d63b128d77cc43f64a04d773c4c4936cfa533cfabad5b27653523634"},"schema_version":"1.0"},"canonical_sha256":"7cd2af339fa61d285b7d980a55ea90301c9747d7de2be69668bf3e87e6544b15","source":{"kind":"arxiv","id":"1805.02870","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.02870","created_at":"2026-05-18T00:07:40Z"},{"alias_kind":"arxiv_version","alias_value":"1805.02870v2","created_at":"2026-05-18T00:07:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.02870","created_at":"2026-05-18T00:07:40Z"},{"alias_kind":"pith_short_12","alias_value":"PTJK6M47UYOS","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"PTJK6M47UYOSQW35","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"PTJK6M47","created_at":"2026-05-18T12:32:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:PTJK6M47UYOSQW35TAFFL2UQGA","target":"record","payload":{"canonical_record":{"source":{"id":"1805.02870","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-05-08T07:41:08Z","cross_cats_sorted":[],"title_canon_sha256":"5f39fb9be0e610498398f0f82673267b53a2073cc76ceb02644e02355bea83ac","abstract_canon_sha256":"b947e469d63b128d77cc43f64a04d773c4c4936cfa533cfabad5b27653523634"},"schema_version":"1.0"},"canonical_sha256":"7cd2af339fa61d285b7d980a55ea90301c9747d7de2be69668bf3e87e6544b15","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:07:40.429002Z","signature_b64":"Gup9wkZHIEVIwj/D6nFSlyWz24dC0EhDgolUxkkYSzQ1vOohBB7uH+sCt9beUY+1Cm0OZEhLVgmiyyXh/vcJDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7cd2af339fa61d285b7d980a55ea90301c9747d7de2be69668bf3e87e6544b15","last_reissued_at":"2026-05-18T00:07:40.428504Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:07:40.428504Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.02870","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":"2026-05-18T00:07:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/IlWo3+j3FC1+QStZ9424D+8Xx1S4tRs+HbwpSKt9siarbYs/nJo9HKAOjZuv143h3BYGM5M9dutAee52+4uCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T04:49:18.422215Z"},"content_sha256":"ead0d0bac2296e746b853280406f0a60b71ff36193e34a49e420f55c41163ef9","schema_version":"1.0","event_id":"sha256:ead0d0bac2296e746b853280406f0a60b71ff36193e34a49e420f55c41163ef9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:PTJK6M47UYOSQW35TAFFL2UQGA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Decline in the X-ray through Radio Emission from GW170817 Continues to Support an Off-Axis Structured Jet","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Hajela, A. Kathirgamaraju, A. MacFadyen, B. D. Metzger, C. Guidorzi, D. Giannios, E. Berger, J. Zrake, K. D. Alexander, L. Sironi, M. Nicholl, P. K. Blanchard, P. K. G. Williams, P. S. Cowperthwaite, R. Chornock, R. Margutti, T. Eftekhari, V. A. Villar, W. Fong, x. Xie","submitted_at":"2018-05-08T07:41:08Z","abstract_excerpt":"We present new observations of the binary neutron star merger GW170817 at $\\Delta t\\approx 220-290$ days post-merger, at radio (Karl G. Jansky Very Large Array; VLA), X-ray (Chandra X-ray Observatory) and optical (Hubble Space Telescope; HST) wavelengths. These observations provide the first evidence for a turnover in the X-ray light curve, mirroring a decline in the radio emission at $\\gtrsim5\\sigma$ significance. The radio-to-X-ray spectral energy distribution exhibits no evolution into the declining phase. Our full multi-wavelength dataset is consistent with the predicted behavior of our pr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.02870","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":""},"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":"2026-05-18T00:07:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E/JLT6+T6USsdfH1DdmCAWHccP/7Y3Dw/28aXimCfC5DO+N40jFlJXdRwJk85GTXDOvuYV7o8uRvmJzAURxLAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T04:49:18.422881Z"},"content_sha256":"1d0d10a7effbded91a67655bb807a19b1370f8391ce26f610c04ef18429ce760","schema_version":"1.0","event_id":"sha256:1d0d10a7effbded91a67655bb807a19b1370f8391ce26f610c04ef18429ce760"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PTJK6M47UYOSQW35TAFFL2UQGA/bundle.json","state_url":"https://pith.science/pith/PTJK6M47UYOSQW35TAFFL2UQGA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PTJK6M47UYOSQW35TAFFL2UQGA/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":"2026-05-27T04:49:18Z","links":{"resolver":"https://pith.science/pith/PTJK6M47UYOSQW35TAFFL2UQGA","bundle":"https://pith.science/pith/PTJK6M47UYOSQW35TAFFL2UQGA/bundle.json","state":"https://pith.science/pith/PTJK6M47UYOSQW35TAFFL2UQGA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PTJK6M47UYOSQW35TAFFL2UQGA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:PTJK6M47UYOSQW35TAFFL2UQGA","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":"b947e469d63b128d77cc43f64a04d773c4c4936cfa533cfabad5b27653523634","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-05-08T07:41:08Z","title_canon_sha256":"5f39fb9be0e610498398f0f82673267b53a2073cc76ceb02644e02355bea83ac"},"schema_version":"1.0","source":{"id":"1805.02870","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.02870","created_at":"2026-05-18T00:07:40Z"},{"alias_kind":"arxiv_version","alias_value":"1805.02870v2","created_at":"2026-05-18T00:07:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.02870","created_at":"2026-05-18T00:07:40Z"},{"alias_kind":"pith_short_12","alias_value":"PTJK6M47UYOS","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"PTJK6M47UYOSQW35","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"PTJK6M47","created_at":"2026-05-18T12:32:46Z"}],"graph_snapshots":[{"event_id":"sha256:1d0d10a7effbded91a67655bb807a19b1370f8391ce26f610c04ef18429ce760","target":"graph","created_at":"2026-05-18T00:07:40Z","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 new observations of the binary neutron star merger GW170817 at $\\Delta t\\approx 220-290$ days post-merger, at radio (Karl G. Jansky Very Large Array; VLA), X-ray (Chandra X-ray Observatory) and optical (Hubble Space Telescope; HST) wavelengths. These observations provide the first evidence for a turnover in the X-ray light curve, mirroring a decline in the radio emission at $\\gtrsim5\\sigma$ significance. The radio-to-X-ray spectral energy distribution exhibits no evolution into the declining phase. Our full multi-wavelength dataset is consistent with the predicted behavior of our pr","authors_text":"A. Hajela, A. Kathirgamaraju, A. MacFadyen, B. D. Metzger, C. Guidorzi, D. Giannios, E. Berger, J. Zrake, K. D. Alexander, L. Sironi, M. Nicholl, P. K. Blanchard, P. K. G. Williams, P. S. Cowperthwaite, R. Chornock, R. Margutti, T. Eftekhari, V. A. Villar, W. Fong, x. Xie","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-05-08T07:41:08Z","title":"A Decline in the X-ray through Radio Emission from GW170817 Continues to Support an Off-Axis Structured Jet"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.02870","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:ead0d0bac2296e746b853280406f0a60b71ff36193e34a49e420f55c41163ef9","target":"record","created_at":"2026-05-18T00:07:40Z","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":"b947e469d63b128d77cc43f64a04d773c4c4936cfa533cfabad5b27653523634","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-05-08T07:41:08Z","title_canon_sha256":"5f39fb9be0e610498398f0f82673267b53a2073cc76ceb02644e02355bea83ac"},"schema_version":"1.0","source":{"id":"1805.02870","kind":"arxiv","version":2}},"canonical_sha256":"7cd2af339fa61d285b7d980a55ea90301c9747d7de2be69668bf3e87e6544b15","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7cd2af339fa61d285b7d980a55ea90301c9747d7de2be69668bf3e87e6544b15","first_computed_at":"2026-05-18T00:07:40.428504Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:07:40.428504Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Gup9wkZHIEVIwj/D6nFSlyWz24dC0EhDgolUxkkYSzQ1vOohBB7uH+sCt9beUY+1Cm0OZEhLVgmiyyXh/vcJDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:07:40.429002Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.02870","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ead0d0bac2296e746b853280406f0a60b71ff36193e34a49e420f55c41163ef9","sha256:1d0d10a7effbded91a67655bb807a19b1370f8391ce26f610c04ef18429ce760"],"state_sha256":"f251b667131561af3c72c7272301d4e23f5e3cdc3b494ce41f75485ad248058f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L9ZfqNHvVfJma/PJkNFIkSTtd8oLVvdfO31vmUCSq/o98rETRkGiWVO/wpQA5lAef4Hlxlenfr8jgvsDceoOBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T04:49:18.426562Z","bundle_sha256":"1342c163a806ff249ee6ce5f4228a037fdf70dab78089639916364fbc35c8dd2"}}