{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:MGEVUHQIIF73QTDFEADG4GRF6T","short_pith_number":"pith:MGEVUHQI","canonical_record":{"source":{"id":"1808.06916","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-21T14:24:17Z","cross_cats_sorted":[],"title_canon_sha256":"852b593cee76ef61acfef3eb93ee7ae97a2fc3c39c670a7d0decd5fee287380b","abstract_canon_sha256":"c4fdc5e4da70f8a4d7665115edf0a3482f4df7cd490d7e8c7a373f0625ba5213"},"schema_version":"1.0"},"canonical_sha256":"61895a1e08417fb84c6520066e1a25f4e9595e819dcbdbfe1a2e8b6492dec32a","source":{"kind":"arxiv","id":"1808.06916","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.06916","created_at":"2026-05-18T00:06:36Z"},{"alias_kind":"arxiv_version","alias_value":"1808.06916v1","created_at":"2026-05-18T00:06:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.06916","created_at":"2026-05-18T00:06:36Z"},{"alias_kind":"pith_short_12","alias_value":"MGEVUHQIIF73","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"MGEVUHQIIF73QTDF","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"MGEVUHQI","created_at":"2026-05-18T12:32:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:MGEVUHQIIF73QTDFEADG4GRF6T","target":"record","payload":{"canonical_record":{"source":{"id":"1808.06916","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-21T14:24:17Z","cross_cats_sorted":[],"title_canon_sha256":"852b593cee76ef61acfef3eb93ee7ae97a2fc3c39c670a7d0decd5fee287380b","abstract_canon_sha256":"c4fdc5e4da70f8a4d7665115edf0a3482f4df7cd490d7e8c7a373f0625ba5213"},"schema_version":"1.0"},"canonical_sha256":"61895a1e08417fb84c6520066e1a25f4e9595e819dcbdbfe1a2e8b6492dec32a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:06:36.919391Z","signature_b64":"nA9odc/gumdOkGQI5zauH9NpyNTm5atrANQdtcL5N1P/swkg9dHmN4lrpcKrN4uf8pxRy6hH0L+OMse4UK7uAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"61895a1e08417fb84c6520066e1a25f4e9595e819dcbdbfe1a2e8b6492dec32a","last_reissued_at":"2026-05-18T00:06:36.918923Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:06:36.918923Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.06916","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":"2026-05-18T00:06:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P1hau1KtB+f5W+9LjbZkZQHA78PxmU0q5IFIMpsMq/3nwAXwWOn/thO/TrwLs4XwKRHUc8sylhWlqX1rJ2jFAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T07:37:07.355885Z"},"content_sha256":"e32a78f20a864cbc489d606424edacd5e416d93c5c262adb95c9eac35786539f","schema_version":"1.0","event_id":"sha256:e32a78f20a864cbc489d606424edacd5e416d93c5c262adb95c9eac35786539f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:MGEVUHQIIF73QTDFEADG4GRF6T","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Evolution of X-ray Bursts in the \"Bursting Pulsar\" GRO J1744-28","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. B. Hill, A. C. Albayati, A. Sanna, C. Knigge, D. Altamirano, J. M. C. Court, K. Yamaoka, N. Degenaar, R. Wijnands, T. Belloni, T. Overton","submitted_at":"2018-08-21T14:24:17Z","abstract_excerpt":"GRO J1744-28, commonly known as the `Bursting Pulsar', is a low mass X-ray binary containing a neutron star and an evolved giant star. This system, together with the Rapid Burster (MXB 1730-33), are the only two systems that display the so-called Type II X-ray bursts. These type of bursts, which last for 10s of seconds, are thought to be caused by viscous instabilities in the disk; however the Type II bursts seen in GRO J1744-28 are qualitatively very different from those seen in the archetypal Type II bursting source the Rapid Burster. To understand these differences and to create a framework"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.06916","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":"2026-05-18T00:06:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D7t06GO4dIkIYDnMgPdQNBfgkblYBsAzGel6hczB+lOp2JbGfAlYx30GsLwxEVZYNBfAioOC11H97c7w6ezmBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T07:37:07.356511Z"},"content_sha256":"64de4ef21da229c92d60e449e39c482d07545de69d7de3f84e33b39fb3f9ab60","schema_version":"1.0","event_id":"sha256:64de4ef21da229c92d60e449e39c482d07545de69d7de3f84e33b39fb3f9ab60"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MGEVUHQIIF73QTDFEADG4GRF6T/bundle.json","state_url":"https://pith.science/pith/MGEVUHQIIF73QTDFEADG4GRF6T/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MGEVUHQIIF73QTDFEADG4GRF6T/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":"2026-05-25T07:37:07Z","links":{"resolver":"https://pith.science/pith/MGEVUHQIIF73QTDFEADG4GRF6T","bundle":"https://pith.science/pith/MGEVUHQIIF73QTDFEADG4GRF6T/bundle.json","state":"https://pith.science/pith/MGEVUHQIIF73QTDFEADG4GRF6T/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MGEVUHQIIF73QTDFEADG4GRF6T/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:MGEVUHQIIF73QTDFEADG4GRF6T","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":"c4fdc5e4da70f8a4d7665115edf0a3482f4df7cd490d7e8c7a373f0625ba5213","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-21T14:24:17Z","title_canon_sha256":"852b593cee76ef61acfef3eb93ee7ae97a2fc3c39c670a7d0decd5fee287380b"},"schema_version":"1.0","source":{"id":"1808.06916","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.06916","created_at":"2026-05-18T00:06:36Z"},{"alias_kind":"arxiv_version","alias_value":"1808.06916v1","created_at":"2026-05-18T00:06:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.06916","created_at":"2026-05-18T00:06:36Z"},{"alias_kind":"pith_short_12","alias_value":"MGEVUHQIIF73","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"MGEVUHQIIF73QTDF","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"MGEVUHQI","created_at":"2026-05-18T12:32:37Z"}],"graph_snapshots":[{"event_id":"sha256:64de4ef21da229c92d60e449e39c482d07545de69d7de3f84e33b39fb3f9ab60","target":"graph","created_at":"2026-05-18T00:06:36Z","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":"GRO J1744-28, commonly known as the `Bursting Pulsar', is a low mass X-ray binary containing a neutron star and an evolved giant star. This system, together with the Rapid Burster (MXB 1730-33), are the only two systems that display the so-called Type II X-ray bursts. These type of bursts, which last for 10s of seconds, are thought to be caused by viscous instabilities in the disk; however the Type II bursts seen in GRO J1744-28 are qualitatively very different from those seen in the archetypal Type II bursting source the Rapid Burster. To understand these differences and to create a framework","authors_text":"A. B. Hill, A. C. Albayati, A. Sanna, C. Knigge, D. Altamirano, J. M. C. Court, K. Yamaoka, N. Degenaar, R. Wijnands, T. Belloni, T. Overton","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-21T14:24:17Z","title":"The Evolution of X-ray Bursts in the \"Bursting Pulsar\" GRO J1744-28"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.06916","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:e32a78f20a864cbc489d606424edacd5e416d93c5c262adb95c9eac35786539f","target":"record","created_at":"2026-05-18T00:06:36Z","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":"c4fdc5e4da70f8a4d7665115edf0a3482f4df7cd490d7e8c7a373f0625ba5213","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-21T14:24:17Z","title_canon_sha256":"852b593cee76ef61acfef3eb93ee7ae97a2fc3c39c670a7d0decd5fee287380b"},"schema_version":"1.0","source":{"id":"1808.06916","kind":"arxiv","version":1}},"canonical_sha256":"61895a1e08417fb84c6520066e1a25f4e9595e819dcbdbfe1a2e8b6492dec32a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"61895a1e08417fb84c6520066e1a25f4e9595e819dcbdbfe1a2e8b6492dec32a","first_computed_at":"2026-05-18T00:06:36.918923Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:06:36.918923Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nA9odc/gumdOkGQI5zauH9NpyNTm5atrANQdtcL5N1P/swkg9dHmN4lrpcKrN4uf8pxRy6hH0L+OMse4UK7uAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:06:36.919391Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.06916","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e32a78f20a864cbc489d606424edacd5e416d93c5c262adb95c9eac35786539f","sha256:64de4ef21da229c92d60e449e39c482d07545de69d7de3f84e33b39fb3f9ab60"],"state_sha256":"67d1b042d2abd3bd8ff7e454978c69d6fa5123ce9f446b7e33649264789f69e8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"boQh4ow97hY8KOxiU9zu6UakPGw7d/17P8B2tgyZlTO9bH56aUbiV+pGJhPbZflyBOK06ASEiXeE2+fSMahvDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T07:37:07.359729Z","bundle_sha256":"6d1131ea84228743e2d837f1183752a5582f3c01e89d9a135196f01bb422ea5c"}}