{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:VAQWSUMMKU5QWVAQ2KEG76BK3H","short_pith_number":"pith:VAQWSUMM","canonical_record":{"source":{"id":"1605.07616","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-05-24T20:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"1501a80eb7dd194f37a049b6ae60629f5de28d98cbeede55835cd9d122d86936","abstract_canon_sha256":"02b2818c9eb77b0d37c5e9f367d23022201207033a3c817384e50334662c4ca3"},"schema_version":"1.0"},"canonical_sha256":"a82169518c553b0b5410d2886ff82ad9f09c13b0451ce2a67f6a1933b9bd1017","source":{"kind":"arxiv","id":"1605.07616","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.07616","created_at":"2026-05-18T00:59:58Z"},{"alias_kind":"arxiv_version","alias_value":"1605.07616v2","created_at":"2026-05-18T00:59:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.07616","created_at":"2026-05-18T00:59:58Z"},{"alias_kind":"pith_short_12","alias_value":"VAQWSUMMKU5Q","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_16","alias_value":"VAQWSUMMKU5QWVAQ","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_8","alias_value":"VAQWSUMM","created_at":"2026-05-18T12:30:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:VAQWSUMMKU5QWVAQ2KEG76BK3H","target":"record","payload":{"canonical_record":{"source":{"id":"1605.07616","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-05-24T20:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"1501a80eb7dd194f37a049b6ae60629f5de28d98cbeede55835cd9d122d86936","abstract_canon_sha256":"02b2818c9eb77b0d37c5e9f367d23022201207033a3c817384e50334662c4ca3"},"schema_version":"1.0"},"canonical_sha256":"a82169518c553b0b5410d2886ff82ad9f09c13b0451ce2a67f6a1933b9bd1017","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:59:58.322343Z","signature_b64":"JjH2ej4VICQ91WPo8wD1DLQ86Wz4YHC+Y5jc6BpOHb1urRBLnzM7hyQlOfBhwSkal+WONwqTF2du1eTBaOxHBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a82169518c553b0b5410d2886ff82ad9f09c13b0451ce2a67f6a1933b9bd1017","last_reissued_at":"2026-05-18T00:59:58.321833Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:59:58.321833Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1605.07616","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":"2026-05-18T00:59:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n6OUYlXasjOmEthlEh9NxDOr6T86c1DranR4ejuf6Kqn58YRRuHUVTK48Hl5kypIQqbQ2B20Rm8CLtCbatbABA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T00:30:31.698748Z"},"content_sha256":"5c07a59599d8234369461fb283416ba000336c0fd2a3d7ec3f659febe989a0d8","schema_version":"1.0","event_id":"sha256:5c07a59599d8234369461fb283416ba000336c0fd2a3d7ec3f659febe989a0d8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:VAQWSUMMKU5QWVAQ2KEG76BK3H","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"First Detection of a Pulsar Bow Shock Nebula in Far-UV: PSR J0437-4715","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Alexandre Krassilchtchikov, Andrei M. Bykov, Blagoy Rangelov, George G. Pavlov, Martin Durant, Oleg Kargaltsev","submitted_at":"2016-05-24T20:00:00Z","abstract_excerpt":"Pulsars traveling at supersonic speeds are often accompanied by cometary bow shocks seen in Halpha. We report on the first detection of a pulsar bow shock in the far-ultraviolet (FUV). We detected it in FUV images of the nearest millisecond pulsar J0437-4715 obtained with the Hubble Space Telescope. The images reveal a bow-like structure positionally coincident with part of the previously detected Halpha bow shock, with an apex at 10\" ahead of the moving pulsar. Its FUV luminosity, L(1250-2000 A) ~ 5x10^28 erg/s, exceeds the Halpha luminosity from the same area by a factor of 10. The FUV emiss"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.07616","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":"2026-05-18T00:59:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+zxftXATaS2/f1Q7KNTzRXa0xa9D7/KxDViKrwWOgOhdw4q8YvxQSC+n1EZMR/FXwpOgT5VNevVu0BmaqESRBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T00:30:31.699086Z"},"content_sha256":"a6eb2b38bdf41e982f89e3c49cf2a726918b9ff8db93e479644eae2af554c185","schema_version":"1.0","event_id":"sha256:a6eb2b38bdf41e982f89e3c49cf2a726918b9ff8db93e479644eae2af554c185"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VAQWSUMMKU5QWVAQ2KEG76BK3H/bundle.json","state_url":"https://pith.science/pith/VAQWSUMMKU5QWVAQ2KEG76BK3H/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VAQWSUMMKU5QWVAQ2KEG76BK3H/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":"2026-06-04T00:30:31Z","links":{"resolver":"https://pith.science/pith/VAQWSUMMKU5QWVAQ2KEG76BK3H","bundle":"https://pith.science/pith/VAQWSUMMKU5QWVAQ2KEG76BK3H/bundle.json","state":"https://pith.science/pith/VAQWSUMMKU5QWVAQ2KEG76BK3H/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VAQWSUMMKU5QWVAQ2KEG76BK3H/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:VAQWSUMMKU5QWVAQ2KEG76BK3H","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":"02b2818c9eb77b0d37c5e9f367d23022201207033a3c817384e50334662c4ca3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-05-24T20:00:00Z","title_canon_sha256":"1501a80eb7dd194f37a049b6ae60629f5de28d98cbeede55835cd9d122d86936"},"schema_version":"1.0","source":{"id":"1605.07616","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.07616","created_at":"2026-05-18T00:59:58Z"},{"alias_kind":"arxiv_version","alias_value":"1605.07616v2","created_at":"2026-05-18T00:59:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.07616","created_at":"2026-05-18T00:59:58Z"},{"alias_kind":"pith_short_12","alias_value":"VAQWSUMMKU5Q","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_16","alias_value":"VAQWSUMMKU5QWVAQ","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_8","alias_value":"VAQWSUMM","created_at":"2026-05-18T12:30:48Z"}],"graph_snapshots":[{"event_id":"sha256:a6eb2b38bdf41e982f89e3c49cf2a726918b9ff8db93e479644eae2af554c185","target":"graph","created_at":"2026-05-18T00:59:58Z","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":"Pulsars traveling at supersonic speeds are often accompanied by cometary bow shocks seen in Halpha. We report on the first detection of a pulsar bow shock in the far-ultraviolet (FUV). We detected it in FUV images of the nearest millisecond pulsar J0437-4715 obtained with the Hubble Space Telescope. The images reveal a bow-like structure positionally coincident with part of the previously detected Halpha bow shock, with an apex at 10\" ahead of the moving pulsar. Its FUV luminosity, L(1250-2000 A) ~ 5x10^28 erg/s, exceeds the Halpha luminosity from the same area by a factor of 10. The FUV emiss","authors_text":"Alexandre Krassilchtchikov, Andrei M. Bykov, Blagoy Rangelov, George G. Pavlov, Martin Durant, Oleg Kargaltsev","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-05-24T20:00:00Z","title":"First Detection of a Pulsar Bow Shock Nebula in Far-UV: PSR J0437-4715"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.07616","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":"sha256:5c07a59599d8234369461fb283416ba000336c0fd2a3d7ec3f659febe989a0d8","target":"record","created_at":"2026-05-18T00:59:58Z","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":"02b2818c9eb77b0d37c5e9f367d23022201207033a3c817384e50334662c4ca3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-05-24T20:00:00Z","title_canon_sha256":"1501a80eb7dd194f37a049b6ae60629f5de28d98cbeede55835cd9d122d86936"},"schema_version":"1.0","source":{"id":"1605.07616","kind":"arxiv","version":2}},"canonical_sha256":"a82169518c553b0b5410d2886ff82ad9f09c13b0451ce2a67f6a1933b9bd1017","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a82169518c553b0b5410d2886ff82ad9f09c13b0451ce2a67f6a1933b9bd1017","first_computed_at":"2026-05-18T00:59:58.321833Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:59:58.321833Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JjH2ej4VICQ91WPo8wD1DLQ86Wz4YHC+Y5jc6BpOHb1urRBLnzM7hyQlOfBhwSkal+WONwqTF2du1eTBaOxHBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:59:58.322343Z","signed_message":"canonical_sha256_bytes"},"source_id":"1605.07616","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5c07a59599d8234369461fb283416ba000336c0fd2a3d7ec3f659febe989a0d8","sha256:a6eb2b38bdf41e982f89e3c49cf2a726918b9ff8db93e479644eae2af554c185"],"state_sha256":"2c54c603fa1798c1ad4ea738f08ab2d041c10a798e8cac8c4c082e1a085f1cae"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tSYF2rGsAyp2GhcHeIJJPMbwWCZuWLjncjCDh7f0ZA+O+NaP789iNLgrabZ9TEaYELt3zzvuRdfblp1w2gx+Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T00:30:31.700963Z","bundle_sha256":"9ce21bafd2d466c69bd455dc53e88774662da854bb396d656bcb84765deaba77"}}