{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:TZM27ZLTVTKJATTSJ5IKCG6IOJ","short_pith_number":"pith:TZM27ZLT","canonical_record":{"source":{"id":"1305.3091","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-05-14T10:12:08Z","cross_cats_sorted":[],"title_canon_sha256":"76bbbd7ad56f472684a15c85f6976b5ced582cd44613b6ffeb771163df883da2","abstract_canon_sha256":"38519862fde97d613ec846b81a7c75cb4320d292a0e601114bf77890b837f5f6"},"schema_version":"1.0"},"canonical_sha256":"9e59afe573acd4904e724f50a11bc872449caef828084ca0600b0315fcbffa58","source":{"kind":"arxiv","id":"1305.3091","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.3091","created_at":"2026-05-18T01:50:02Z"},{"alias_kind":"arxiv_version","alias_value":"1305.3091v2","created_at":"2026-05-18T01:50:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.3091","created_at":"2026-05-18T01:50:02Z"},{"alias_kind":"pith_short_12","alias_value":"TZM27ZLTVTKJ","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_16","alias_value":"TZM27ZLTVTKJATTS","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_8","alias_value":"TZM27ZLT","created_at":"2026-05-18T12:28:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:TZM27ZLTVTKJATTSJ5IKCG6IOJ","target":"record","payload":{"canonical_record":{"source":{"id":"1305.3091","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-05-14T10:12:08Z","cross_cats_sorted":[],"title_canon_sha256":"76bbbd7ad56f472684a15c85f6976b5ced582cd44613b6ffeb771163df883da2","abstract_canon_sha256":"38519862fde97d613ec846b81a7c75cb4320d292a0e601114bf77890b837f5f6"},"schema_version":"1.0"},"canonical_sha256":"9e59afe573acd4904e724f50a11bc872449caef828084ca0600b0315fcbffa58","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:50:02.390919Z","signature_b64":"XEKyFQGIsXdqN5uMtFjQx4esHI4FAVUgAS1hLUcIyBbjjrO0tamnij38NkfDGKzOtiQUqTCvtzwgoAfwgrIkDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9e59afe573acd4904e724f50a11bc872449caef828084ca0600b0315fcbffa58","last_reissued_at":"2026-05-18T01:50:02.390191Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:50:02.390191Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1305.3091","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":"2026-05-18T01:50:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HsJzZ7vml4xKCr4CppsDQDA+sW6XdgA6oiSlUtfEosP7183CAfO/MjRpM4WROcX6K2X4tRWVnbIA0ixcz7xpCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T02:41:17.852148Z"},"content_sha256":"3fabb07e01f26bc83d31f3fc4ce6c0e787c91fdf3d81bf1ef1276b991ab42cdb","schema_version":"1.0","event_id":"sha256:3fabb07e01f26bc83d31f3fc4ce6c0e787c91fdf3d81bf1ef1276b991ab42cdb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:TZM27ZLTVTKJATTSJ5IKCG6IOJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A low-level accretion flare during the quiescent state of the neutron-star X-ray transient SAX J1750.8-2900","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Nathalie Degenaar, Rudy Wijnands","submitted_at":"2013-05-14T10:12:08Z","abstract_excerpt":"We report on a series of Swift/XRT observations, performed between February and 22 March 2012, during the quiescent state of the neutron-star X-ray binary SAX J1750.8-2900. In these observations, the source was either just detected or undetected, depending on the exposure length (which ranged from ~0.3 to ~3.8 ks). The upper limits for the non-detections were consistent with the detected luminosities (when fitting a thermal model to the spectrum) of ~1E34 erg/s (0.5-10 keV). This level is consistent with what has been measured previously for this source in quiescence. However, on March 17 the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.3091","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":"2026-05-18T01:50:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e36ERvLFIk4cC8an5rnyE8cTKcvLZr7SBaUCB4pCCJG3K8dJAKplc0BSFE4walU6+TTsUzjGQleezMZmX+/pCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T02:41:17.852510Z"},"content_sha256":"3bd85c0a1ae7cd3771adb456836e56266ec42cd7fb1ebcc76f9197108e0cee40","schema_version":"1.0","event_id":"sha256:3bd85c0a1ae7cd3771adb456836e56266ec42cd7fb1ebcc76f9197108e0cee40"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TZM27ZLTVTKJATTSJ5IKCG6IOJ/bundle.json","state_url":"https://pith.science/pith/TZM27ZLTVTKJATTSJ5IKCG6IOJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TZM27ZLTVTKJATTSJ5IKCG6IOJ/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":"2026-05-27T02:41:17Z","links":{"resolver":"https://pith.science/pith/TZM27ZLTVTKJATTSJ5IKCG6IOJ","bundle":"https://pith.science/pith/TZM27ZLTVTKJATTSJ5IKCG6IOJ/bundle.json","state":"https://pith.science/pith/TZM27ZLTVTKJATTSJ5IKCG6IOJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TZM27ZLTVTKJATTSJ5IKCG6IOJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:TZM27ZLTVTKJATTSJ5IKCG6IOJ","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":"38519862fde97d613ec846b81a7c75cb4320d292a0e601114bf77890b837f5f6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-05-14T10:12:08Z","title_canon_sha256":"76bbbd7ad56f472684a15c85f6976b5ced582cd44613b6ffeb771163df883da2"},"schema_version":"1.0","source":{"id":"1305.3091","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.3091","created_at":"2026-05-18T01:50:02Z"},{"alias_kind":"arxiv_version","alias_value":"1305.3091v2","created_at":"2026-05-18T01:50:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.3091","created_at":"2026-05-18T01:50:02Z"},{"alias_kind":"pith_short_12","alias_value":"TZM27ZLTVTKJ","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_16","alias_value":"TZM27ZLTVTKJATTS","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_8","alias_value":"TZM27ZLT","created_at":"2026-05-18T12:28:02Z"}],"graph_snapshots":[{"event_id":"sha256:3bd85c0a1ae7cd3771adb456836e56266ec42cd7fb1ebcc76f9197108e0cee40","target":"graph","created_at":"2026-05-18T01:50:02Z","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 report on a series of Swift/XRT observations, performed between February and 22 March 2012, during the quiescent state of the neutron-star X-ray binary SAX J1750.8-2900. In these observations, the source was either just detected or undetected, depending on the exposure length (which ranged from ~0.3 to ~3.8 ks). The upper limits for the non-detections were consistent with the detected luminosities (when fitting a thermal model to the spectrum) of ~1E34 erg/s (0.5-10 keV). This level is consistent with what has been measured previously for this source in quiescence. However, on March 17 the ","authors_text":"Nathalie Degenaar, Rudy Wijnands","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-05-14T10:12:08Z","title":"A low-level accretion flare during the quiescent state of the neutron-star X-ray transient SAX J1750.8-2900"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.3091","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":"sha256:3fabb07e01f26bc83d31f3fc4ce6c0e787c91fdf3d81bf1ef1276b991ab42cdb","target":"record","created_at":"2026-05-18T01:50:02Z","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":"38519862fde97d613ec846b81a7c75cb4320d292a0e601114bf77890b837f5f6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-05-14T10:12:08Z","title_canon_sha256":"76bbbd7ad56f472684a15c85f6976b5ced582cd44613b6ffeb771163df883da2"},"schema_version":"1.0","source":{"id":"1305.3091","kind":"arxiv","version":2}},"canonical_sha256":"9e59afe573acd4904e724f50a11bc872449caef828084ca0600b0315fcbffa58","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9e59afe573acd4904e724f50a11bc872449caef828084ca0600b0315fcbffa58","first_computed_at":"2026-05-18T01:50:02.390191Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:50:02.390191Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XEKyFQGIsXdqN5uMtFjQx4esHI4FAVUgAS1hLUcIyBbjjrO0tamnij38NkfDGKzOtiQUqTCvtzwgoAfwgrIkDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:50:02.390919Z","signed_message":"canonical_sha256_bytes"},"source_id":"1305.3091","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3fabb07e01f26bc83d31f3fc4ce6c0e787c91fdf3d81bf1ef1276b991ab42cdb","sha256:3bd85c0a1ae7cd3771adb456836e56266ec42cd7fb1ebcc76f9197108e0cee40"],"state_sha256":"7a6839031c54bc203b32ae5197919efc2ab9a3e1603049f132616b586ede4642"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"j7mkEGQJAhBtJI0k86WuBYp1lMEj1rJhvWAuPFht1JELynZuqro5vpqFoM9UJewFCLPq1+vuRG7Aldw0AfP2AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T02:41:17.855291Z","bundle_sha256":"ceb4da58cb5ade23676a3086448f8597815c793cfef9fdf773b9d641d08c66da"}}