{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:3RHKHGNZGFKQ3IOUKGZDN77EJO","short_pith_number":"pith:3RHKHGNZ","canonical_record":{"source":{"id":"1701.02321","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-01-09T19:08:37Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"0b58f31180cc935e56075f9fac3f4de9517cda0016410a4ae8c0daf686e768cc","abstract_canon_sha256":"d8f42f5e16b29c5293bdda52d8befd25f9607987be7eb2d1600db719ce45ab33"},"schema_version":"1.0"},"canonical_sha256":"dc4ea399b931550da1d451b236ffe44baa9c40f0a271135ab4d2ac21e101cfa0","source":{"kind":"arxiv","id":"1701.02321","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.02321","created_at":"2026-05-18T00:46:38Z"},{"alias_kind":"arxiv_version","alias_value":"1701.02321v1","created_at":"2026-05-18T00:46:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.02321","created_at":"2026-05-18T00:46:38Z"},{"alias_kind":"pith_short_12","alias_value":"3RHKHGNZGFKQ","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"3RHKHGNZGFKQ3IOU","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"3RHKHGNZ","created_at":"2026-05-18T12:30:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:3RHKHGNZGFKQ3IOUKGZDN77EJO","target":"record","payload":{"canonical_record":{"source":{"id":"1701.02321","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-01-09T19:08:37Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"0b58f31180cc935e56075f9fac3f4de9517cda0016410a4ae8c0daf686e768cc","abstract_canon_sha256":"d8f42f5e16b29c5293bdda52d8befd25f9607987be7eb2d1600db719ce45ab33"},"schema_version":"1.0"},"canonical_sha256":"dc4ea399b931550da1d451b236ffe44baa9c40f0a271135ab4d2ac21e101cfa0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:46:38.083517Z","signature_b64":"2lL504YuVbnMwmfBzj9rZUBS1ijvMx/LpxgVjd4XLzzLm/KGkWncdhNrELVL311k3OGW/qFtjwPXnnA3ybBPAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dc4ea399b931550da1d451b236ffe44baa9c40f0a271135ab4d2ac21e101cfa0","last_reissued_at":"2026-05-18T00:46:38.083053Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:46:38.083053Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1701.02321","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":"2026-05-18T00:46:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UqxCAv4Hyitm2cvsT7/II23YAiuPR1AYuLZ7ixtFwflFL6kwjmuTCpskQy3sCHC6jenMz9ZXmwDXu50zZF7kCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T15:05:28.811541Z"},"content_sha256":"a759d1342478bf8a323442a43fe2850799f9f764d128ac975194043da3169205","schema_version":"1.0","event_id":"sha256:a759d1342478bf8a323442a43fe2850799f9f764d128ac975194043da3169205"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:3RHKHGNZGFKQ3IOUKGZDN77EJO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The puzzling case of the accreting millisecond X-ray pulsar IGR J00291+5934: flaring optical emission during quiescence","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"A. Papitto, D. F. Torres, L. Burderi, M. C. Baglio, N. Rea, P. D'Avanzo, S. Campana, T. Di Salvo, T. Mu\\~noz Darias","submitted_at":"2017-01-09T19:08:37Z","abstract_excerpt":"We present an optical (gri) study during quiescence of the accreting millisecond X-ray pulsar IGR J00291+5934 performed with the 10.4m Gran Telescopio Canarias (GTC) in August 2014. Despite the source being in quiescence at the time of our observations, it showed a strong optical flaring activity, more pronounced at higher frequencies (i.e. the g band). Once the flares were subtracted, we tentatively recovered a sinusoidal modulation at the system orbital period in all bands, even if a significant phase shift with respect to an irradiated star, typical of accreting millisecond X-ray pulsars is"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.02321","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":"2026-05-18T00:46:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oqZaAhvRjjswtwOu5StCMJ6kC7h1PX5yg6dK9WsYIqcmNGFz4WhKD3lz9VlCm9bNSytWLHo71gzrktOEaH5CCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T15:05:28.811944Z"},"content_sha256":"45db420dc0c43fef962826e767a3b01b46d13a246cc343c97b2895a36c9788e6","schema_version":"1.0","event_id":"sha256:45db420dc0c43fef962826e767a3b01b46d13a246cc343c97b2895a36c9788e6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3RHKHGNZGFKQ3IOUKGZDN77EJO/bundle.json","state_url":"https://pith.science/pith/3RHKHGNZGFKQ3IOUKGZDN77EJO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3RHKHGNZGFKQ3IOUKGZDN77EJO/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":"2026-05-26T15:05:28Z","links":{"resolver":"https://pith.science/pith/3RHKHGNZGFKQ3IOUKGZDN77EJO","bundle":"https://pith.science/pith/3RHKHGNZGFKQ3IOUKGZDN77EJO/bundle.json","state":"https://pith.science/pith/3RHKHGNZGFKQ3IOUKGZDN77EJO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3RHKHGNZGFKQ3IOUKGZDN77EJO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:3RHKHGNZGFKQ3IOUKGZDN77EJO","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":"d8f42f5e16b29c5293bdda52d8befd25f9607987be7eb2d1600db719ce45ab33","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-01-09T19:08:37Z","title_canon_sha256":"0b58f31180cc935e56075f9fac3f4de9517cda0016410a4ae8c0daf686e768cc"},"schema_version":"1.0","source":{"id":"1701.02321","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.02321","created_at":"2026-05-18T00:46:38Z"},{"alias_kind":"arxiv_version","alias_value":"1701.02321v1","created_at":"2026-05-18T00:46:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.02321","created_at":"2026-05-18T00:46:38Z"},{"alias_kind":"pith_short_12","alias_value":"3RHKHGNZGFKQ","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"3RHKHGNZGFKQ3IOU","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"3RHKHGNZ","created_at":"2026-05-18T12:30:58Z"}],"graph_snapshots":[{"event_id":"sha256:45db420dc0c43fef962826e767a3b01b46d13a246cc343c97b2895a36c9788e6","target":"graph","created_at":"2026-05-18T00:46:38Z","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 an optical (gri) study during quiescence of the accreting millisecond X-ray pulsar IGR J00291+5934 performed with the 10.4m Gran Telescopio Canarias (GTC) in August 2014. Despite the source being in quiescence at the time of our observations, it showed a strong optical flaring activity, more pronounced at higher frequencies (i.e. the g band). Once the flares were subtracted, we tentatively recovered a sinusoidal modulation at the system orbital period in all bands, even if a significant phase shift with respect to an irradiated star, typical of accreting millisecond X-ray pulsars is","authors_text":"A. Papitto, D. F. Torres, L. Burderi, M. C. Baglio, N. Rea, P. D'Avanzo, S. Campana, T. Di Salvo, T. Mu\\~noz Darias","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-01-09T19:08:37Z","title":"The puzzling case of the accreting millisecond X-ray pulsar IGR J00291+5934: flaring optical emission during quiescence"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.02321","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:a759d1342478bf8a323442a43fe2850799f9f764d128ac975194043da3169205","target":"record","created_at":"2026-05-18T00:46:38Z","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":"d8f42f5e16b29c5293bdda52d8befd25f9607987be7eb2d1600db719ce45ab33","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-01-09T19:08:37Z","title_canon_sha256":"0b58f31180cc935e56075f9fac3f4de9517cda0016410a4ae8c0daf686e768cc"},"schema_version":"1.0","source":{"id":"1701.02321","kind":"arxiv","version":1}},"canonical_sha256":"dc4ea399b931550da1d451b236ffe44baa9c40f0a271135ab4d2ac21e101cfa0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dc4ea399b931550da1d451b236ffe44baa9c40f0a271135ab4d2ac21e101cfa0","first_computed_at":"2026-05-18T00:46:38.083053Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:46:38.083053Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2lL504YuVbnMwmfBzj9rZUBS1ijvMx/LpxgVjd4XLzzLm/KGkWncdhNrELVL311k3OGW/qFtjwPXnnA3ybBPAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:46:38.083517Z","signed_message":"canonical_sha256_bytes"},"source_id":"1701.02321","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a759d1342478bf8a323442a43fe2850799f9f764d128ac975194043da3169205","sha256:45db420dc0c43fef962826e767a3b01b46d13a246cc343c97b2895a36c9788e6"],"state_sha256":"f09555ac2d71e73b53641c919de76f190144c7bc174c4268fc61e16560ed23ed"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cK6hvjxa769xvN16eR9ZVoCc/47o24HGipptcgRJM+OHUA0zdRgxTwH/N1tRyheHaTd1ocZTJYHj89xrCJ3nBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T15:05:28.814382Z","bundle_sha256":"eeebc2cb7fc7ce77f01055a1981abd6901104623a2b0613e323a2cf083843626"}}