{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:G5AZUFTMIPZ4HR5E3E7MIXLKXP","short_pith_number":"pith:G5AZUFTM","canonical_record":{"source":{"id":"1811.12795","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-11-30T13:54:55Z","cross_cats_sorted":[],"title_canon_sha256":"60f15bb7f2def709630b8d11cba01936892465afcb727e68ae0d61d0224f40df","abstract_canon_sha256":"fb166774cb41ff10779f5f3695632e26882628511230bde15fe5364c03812aea"},"schema_version":"1.0"},"canonical_sha256":"37419a166c43f3c3c7a4d93ec45d6abbcac6a64cf43356c7ec1bd53861a50f0d","source":{"kind":"arxiv","id":"1811.12795","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.12795","created_at":"2026-05-17T23:55:43Z"},{"alias_kind":"arxiv_version","alias_value":"1811.12795v1","created_at":"2026-05-17T23:55:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.12795","created_at":"2026-05-17T23:55:43Z"},{"alias_kind":"pith_short_12","alias_value":"G5AZUFTMIPZ4","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"G5AZUFTMIPZ4HR5E","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"G5AZUFTM","created_at":"2026-05-18T12:32:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:G5AZUFTMIPZ4HR5E3E7MIXLKXP","target":"record","payload":{"canonical_record":{"source":{"id":"1811.12795","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-11-30T13:54:55Z","cross_cats_sorted":[],"title_canon_sha256":"60f15bb7f2def709630b8d11cba01936892465afcb727e68ae0d61d0224f40df","abstract_canon_sha256":"fb166774cb41ff10779f5f3695632e26882628511230bde15fe5364c03812aea"},"schema_version":"1.0"},"canonical_sha256":"37419a166c43f3c3c7a4d93ec45d6abbcac6a64cf43356c7ec1bd53861a50f0d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:55:43.673297Z","signature_b64":"YYIWiW16lf2t8Ck3i9bTIA5rH9UVi71oZfk8aVxLdyS7Of8NAURLBt+eI5Kat4h3Jy+Gz1UXfPPZrIvcDHMpBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"37419a166c43f3c3c7a4d93ec45d6abbcac6a64cf43356c7ec1bd53861a50f0d","last_reissued_at":"2026-05-17T23:55:43.672569Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:55:43.672569Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1811.12795","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":"2026-05-17T23:55:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eUmUyM951JimLaj8hIDzYI9+1xJjL0fHEnKJ27VdpQYApL4os8h5JIEE1tD794wzk2Kr0GP6DQ9O9JXw6bXICg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T01:56:43.064792Z"},"content_sha256":"19759b242443dd0232fe167e843d85958ee62091fe563114cd74273d133f511f","schema_version":"1.0","event_id":"sha256:19759b242443dd0232fe167e843d85958ee62091fe563114cd74273d133f511f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:G5AZUFTMIPZ4HR5E3E7MIXLKXP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"X-ray and optical monitoring of the December 2017 outburst of the Be/X-ray binary AX J0049.4-7323","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Santangelo, A. Udalski, C. Malacaria, E. Bozzo, I. Saathoff, L. Ducci, L. Ji, P. Romano","submitted_at":"2018-11-30T13:54:55Z","abstract_excerpt":"AX J0049.4-7323 is a Be/X-ray binary that shows an unusual and poorly understood optical variability that consists of periodic and bright optical outbursts, simultaneous with X-ray outbursts, characterised by a highly asymmetric profile. The periodicity of the outbursts is thought to correspond to the orbital period of the neutron star. To understand the behaviour shown by this source, we performed the first multi-wavelength monitoring campaign during the periastron passage of December 2017. The monitoring lasted for ~37 days and consisted of X-ray, near-ultraviolet, and optical data from the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.12795","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":"2026-05-17T23:55:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AT8FT9oIuHO2p0Zv7jPnK3ibKSlkPqFrBagMGReCd8vSiasogv/QO9+Wtn3SRnSQlOIdRvQ2bwT7aLIr7G0bDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T01:56:43.065159Z"},"content_sha256":"3a0d04c4b45ccc0bb11abc15830aec4d3c5dbabe68893ab00765ec33bf31f4c2","schema_version":"1.0","event_id":"sha256:3a0d04c4b45ccc0bb11abc15830aec4d3c5dbabe68893ab00765ec33bf31f4c2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/G5AZUFTMIPZ4HR5E3E7MIXLKXP/bundle.json","state_url":"https://pith.science/pith/G5AZUFTMIPZ4HR5E3E7MIXLKXP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/G5AZUFTMIPZ4HR5E3E7MIXLKXP/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":"2026-05-27T01:56:43Z","links":{"resolver":"https://pith.science/pith/G5AZUFTMIPZ4HR5E3E7MIXLKXP","bundle":"https://pith.science/pith/G5AZUFTMIPZ4HR5E3E7MIXLKXP/bundle.json","state":"https://pith.science/pith/G5AZUFTMIPZ4HR5E3E7MIXLKXP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/G5AZUFTMIPZ4HR5E3E7MIXLKXP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:G5AZUFTMIPZ4HR5E3E7MIXLKXP","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":"fb166774cb41ff10779f5f3695632e26882628511230bde15fe5364c03812aea","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-11-30T13:54:55Z","title_canon_sha256":"60f15bb7f2def709630b8d11cba01936892465afcb727e68ae0d61d0224f40df"},"schema_version":"1.0","source":{"id":"1811.12795","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.12795","created_at":"2026-05-17T23:55:43Z"},{"alias_kind":"arxiv_version","alias_value":"1811.12795v1","created_at":"2026-05-17T23:55:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.12795","created_at":"2026-05-17T23:55:43Z"},{"alias_kind":"pith_short_12","alias_value":"G5AZUFTMIPZ4","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"G5AZUFTMIPZ4HR5E","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"G5AZUFTM","created_at":"2026-05-18T12:32:25Z"}],"graph_snapshots":[{"event_id":"sha256:3a0d04c4b45ccc0bb11abc15830aec4d3c5dbabe68893ab00765ec33bf31f4c2","target":"graph","created_at":"2026-05-17T23:55:43Z","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":"AX J0049.4-7323 is a Be/X-ray binary that shows an unusual and poorly understood optical variability that consists of periodic and bright optical outbursts, simultaneous with X-ray outbursts, characterised by a highly asymmetric profile. The periodicity of the outbursts is thought to correspond to the orbital period of the neutron star. To understand the behaviour shown by this source, we performed the first multi-wavelength monitoring campaign during the periastron passage of December 2017. The monitoring lasted for ~37 days and consisted of X-ray, near-ultraviolet, and optical data from the ","authors_text":"A. Santangelo, A. Udalski, C. Malacaria, E. Bozzo, I. Saathoff, L. Ducci, L. Ji, P. Romano","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-11-30T13:54:55Z","title":"X-ray and optical monitoring of the December 2017 outburst of the Be/X-ray binary AX J0049.4-7323"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.12795","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":"sha256:19759b242443dd0232fe167e843d85958ee62091fe563114cd74273d133f511f","target":"record","created_at":"2026-05-17T23:55:43Z","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":"fb166774cb41ff10779f5f3695632e26882628511230bde15fe5364c03812aea","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-11-30T13:54:55Z","title_canon_sha256":"60f15bb7f2def709630b8d11cba01936892465afcb727e68ae0d61d0224f40df"},"schema_version":"1.0","source":{"id":"1811.12795","kind":"arxiv","version":1}},"canonical_sha256":"37419a166c43f3c3c7a4d93ec45d6abbcac6a64cf43356c7ec1bd53861a50f0d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"37419a166c43f3c3c7a4d93ec45d6abbcac6a64cf43356c7ec1bd53861a50f0d","first_computed_at":"2026-05-17T23:55:43.672569Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:55:43.672569Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YYIWiW16lf2t8Ck3i9bTIA5rH9UVi71oZfk8aVxLdyS7Of8NAURLBt+eI5Kat4h3Jy+Gz1UXfPPZrIvcDHMpBg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:55:43.673297Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.12795","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:19759b242443dd0232fe167e843d85958ee62091fe563114cd74273d133f511f","sha256:3a0d04c4b45ccc0bb11abc15830aec4d3c5dbabe68893ab00765ec33bf31f4c2"],"state_sha256":"1ad16dcaf94b92ee189d1c6cba266bc9d67ec1182cdf3cd73d9caa1860846cbd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5qlDtyQRIa46cupndPkbMc6r6Dfuu7MhLqHh/CfjHl7YlKrscRF2HzgHyjBWFjjnr+E7BVRYvs0+LNZe6zpODA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T01:56:43.068220Z","bundle_sha256":"05628f773ab3c09b447f99504e65bbe2a5157bc466a422db1b5665a5061e04e4"}}