{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:AGZZF76PNJLPFNN4YATZU2UAN4","short_pith_number":"pith:AGZZF76P","canonical_record":{"source":{"id":"1808.04392","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-13T18:22:27Z","cross_cats_sorted":[],"title_canon_sha256":"aff0f228c2b40cd702811181d94d2ecf3bcdcc3955609961b5cb4edcc1010b02","abstract_canon_sha256":"82d69694e36b5f073e71938f3475a0f9c69bf4ac0247dce6f830226d0717f034"},"schema_version":"1.0"},"canonical_sha256":"01b392ffcf6a56f2b5bcc0279a6a806f192f0614fd1aebce3ee55ac98a476249","source":{"kind":"arxiv","id":"1808.04392","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.04392","created_at":"2026-05-18T00:08:12Z"},{"alias_kind":"arxiv_version","alias_value":"1808.04392v1","created_at":"2026-05-18T00:08:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.04392","created_at":"2026-05-18T00:08:12Z"},{"alias_kind":"pith_short_12","alias_value":"AGZZF76PNJLP","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"AGZZF76PNJLPFNN4","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"AGZZF76P","created_at":"2026-05-18T12:32:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:AGZZF76PNJLPFNN4YATZU2UAN4","target":"record","payload":{"canonical_record":{"source":{"id":"1808.04392","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-13T18:22:27Z","cross_cats_sorted":[],"title_canon_sha256":"aff0f228c2b40cd702811181d94d2ecf3bcdcc3955609961b5cb4edcc1010b02","abstract_canon_sha256":"82d69694e36b5f073e71938f3475a0f9c69bf4ac0247dce6f830226d0717f034"},"schema_version":"1.0"},"canonical_sha256":"01b392ffcf6a56f2b5bcc0279a6a806f192f0614fd1aebce3ee55ac98a476249","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:08:12.508330Z","signature_b64":"7E+89ihO2B4EoFdBTogjPptVOluot1DOC9U6Y7eJPtVV8X/JrBLEZctnaiiXjyKQxYCi583i9Q+4henF8trvBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"01b392ffcf6a56f2b5bcc0279a6a806f192f0614fd1aebce3ee55ac98a476249","last_reissued_at":"2026-05-18T00:08:12.507937Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:08:12.507937Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.04392","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":"2026-05-18T00:08:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oN7FIIBhlge5VhlKtM+vaP2kL1EA9Td5kGE3wPQ0+Z6a4AQA7EPkJe91FYWAEyrotTayERlwLR/EiIo710jQBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T01:52:52.381639Z"},"content_sha256":"28c162ce61acbc99b221302f04b22dd8a627abfb65be93a3cdb579886b8e7502","schema_version":"1.0","event_id":"sha256:28c162ce61acbc99b221302f04b22dd8a627abfb65be93a3cdb579886b8e7502"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:AGZZF76PNJLPFNN4YATZU2UAN4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"NICER Discovers the Ultracompact Orbit of the Accreting Millisecond Pulsar IGR J17062-6143","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Alice K. Harding, Craig B. Markwardt, Deepto Chakrabarty, Gaurava K. Jaisawal, Jeroen Homan, Keith C. Gendreau, Laurens Keek, Matthew Kerr, Michael T. Wolff, Paul S. Ray, Peter M. Bult, Ron Remillard, Scott M. Ransom, Sebastien Guillot, Simin Mahmoodifar, Slavko Bogdanov, Teruaki Enoto, Tod E. Strohmayer, Wynn C. G. Ho, Zaven Arzoumanian","submitted_at":"2018-08-13T18:22:27Z","abstract_excerpt":"We present results of recent Neutron Star Interior Composition Explorer observations of the accreting millisecond X-ray pulsar IGR J17062-6143 that show that it resides in a circular, ultracompact binary with a 38 minute orbital period. NICER observed the source for approximately 26 ksec over a 5.3 day span in 2017 August, and again for 14 and 11 ksec in 2017 October and November, respectively. A power spectral analysis of the August exposure confirms the previous detection of pulsations at 163.656 Hz in Rossi X-ray Timing Explorer data, and reveals phase modulation due to orbital motion of th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.04392","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":"2026-05-18T00:08:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MVUSlve22GY5FhWaIYVZwWYRKv2bPaIvT9Yh+JTySHBiZFUMLu9kCj6ngMUTGo5kXG1FbbrQs8Onh7AtbmdDDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T01:52:52.382129Z"},"content_sha256":"f2b6b376f64f4c11b71635dbe06235083696b8d88e656fe70aa2e65904543386","schema_version":"1.0","event_id":"sha256:f2b6b376f64f4c11b71635dbe06235083696b8d88e656fe70aa2e65904543386"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AGZZF76PNJLPFNN4YATZU2UAN4/bundle.json","state_url":"https://pith.science/pith/AGZZF76PNJLPFNN4YATZU2UAN4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AGZZF76PNJLPFNN4YATZU2UAN4/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":"2026-05-31T01:52:52Z","links":{"resolver":"https://pith.science/pith/AGZZF76PNJLPFNN4YATZU2UAN4","bundle":"https://pith.science/pith/AGZZF76PNJLPFNN4YATZU2UAN4/bundle.json","state":"https://pith.science/pith/AGZZF76PNJLPFNN4YATZU2UAN4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AGZZF76PNJLPFNN4YATZU2UAN4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:AGZZF76PNJLPFNN4YATZU2UAN4","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":"82d69694e36b5f073e71938f3475a0f9c69bf4ac0247dce6f830226d0717f034","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-13T18:22:27Z","title_canon_sha256":"aff0f228c2b40cd702811181d94d2ecf3bcdcc3955609961b5cb4edcc1010b02"},"schema_version":"1.0","source":{"id":"1808.04392","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.04392","created_at":"2026-05-18T00:08:12Z"},{"alias_kind":"arxiv_version","alias_value":"1808.04392v1","created_at":"2026-05-18T00:08:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.04392","created_at":"2026-05-18T00:08:12Z"},{"alias_kind":"pith_short_12","alias_value":"AGZZF76PNJLP","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"AGZZF76PNJLPFNN4","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"AGZZF76P","created_at":"2026-05-18T12:32:13Z"}],"graph_snapshots":[{"event_id":"sha256:f2b6b376f64f4c11b71635dbe06235083696b8d88e656fe70aa2e65904543386","target":"graph","created_at":"2026-05-18T00:08:12Z","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 results of recent Neutron Star Interior Composition Explorer observations of the accreting millisecond X-ray pulsar IGR J17062-6143 that show that it resides in a circular, ultracompact binary with a 38 minute orbital period. NICER observed the source for approximately 26 ksec over a 5.3 day span in 2017 August, and again for 14 and 11 ksec in 2017 October and November, respectively. A power spectral analysis of the August exposure confirms the previous detection of pulsations at 163.656 Hz in Rossi X-ray Timing Explorer data, and reveals phase modulation due to orbital motion of th","authors_text":"Alice K. Harding, Craig B. Markwardt, Deepto Chakrabarty, Gaurava K. Jaisawal, Jeroen Homan, Keith C. Gendreau, Laurens Keek, Matthew Kerr, Michael T. Wolff, Paul S. Ray, Peter M. Bult, Ron Remillard, Scott M. Ransom, Sebastien Guillot, Simin Mahmoodifar, Slavko Bogdanov, Teruaki Enoto, Tod E. Strohmayer, Wynn C. G. Ho, Zaven Arzoumanian","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-13T18:22:27Z","title":"NICER Discovers the Ultracompact Orbit of the Accreting Millisecond Pulsar IGR J17062-6143"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.04392","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":"sha256:28c162ce61acbc99b221302f04b22dd8a627abfb65be93a3cdb579886b8e7502","target":"record","created_at":"2026-05-18T00:08:12Z","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":"82d69694e36b5f073e71938f3475a0f9c69bf4ac0247dce6f830226d0717f034","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-13T18:22:27Z","title_canon_sha256":"aff0f228c2b40cd702811181d94d2ecf3bcdcc3955609961b5cb4edcc1010b02"},"schema_version":"1.0","source":{"id":"1808.04392","kind":"arxiv","version":1}},"canonical_sha256":"01b392ffcf6a56f2b5bcc0279a6a806f192f0614fd1aebce3ee55ac98a476249","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"01b392ffcf6a56f2b5bcc0279a6a806f192f0614fd1aebce3ee55ac98a476249","first_computed_at":"2026-05-18T00:08:12.507937Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:08:12.507937Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7E+89ihO2B4EoFdBTogjPptVOluot1DOC9U6Y7eJPtVV8X/JrBLEZctnaiiXjyKQxYCi583i9Q+4henF8trvBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:08:12.508330Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.04392","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:28c162ce61acbc99b221302f04b22dd8a627abfb65be93a3cdb579886b8e7502","sha256:f2b6b376f64f4c11b71635dbe06235083696b8d88e656fe70aa2e65904543386"],"state_sha256":"137a45de605b560cd38d3b67b0a45be39d57775ef8de10c921f09428291fe281"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EXwigPjBrrqW4qIVdTI4pcVD2iwjbC6qk1XBiOm+L2USoL5UxrfcRO8lwOI1DNrc2BnA85knCovN+DlGChCTBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T01:52:52.385043Z","bundle_sha256":"c77d4d515a863c29c219f822299aa2f69ce8ef223ee0631507e9553b80ce1a38"}}