{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:S3Z7WJQYYNHU7RZ35O7W45MBMH","short_pith_number":"pith:S3Z7WJQY","canonical_record":{"source":{"id":"2606.10566","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-06-09T08:29:21Z","cross_cats_sorted":[],"title_canon_sha256":"17bcd8a880dbcc0bc157e0c2115c1a4ff28ab8effd87adeb25527a5662334ccc","abstract_canon_sha256":"e80315b1bdac0c0260f8b098888423529a9f3813d959d1c6bf4f77e0b6f2e9a6"},"schema_version":"1.0"},"canonical_sha256":"96f3fb2618c34f4fc73bebbf6e758161cc42d6d94ccaed602c222892de05eb9a","source":{"kind":"arxiv","id":"2606.10566","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.10566","created_at":"2026-06-10T01:10:26Z"},{"alias_kind":"arxiv_version","alias_value":"2606.10566v1","created_at":"2026-06-10T01:10:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.10566","created_at":"2026-06-10T01:10:26Z"},{"alias_kind":"pith_short_12","alias_value":"S3Z7WJQYYNHU","created_at":"2026-06-10T01:10:26Z"},{"alias_kind":"pith_short_16","alias_value":"S3Z7WJQYYNHU7RZ3","created_at":"2026-06-10T01:10:26Z"},{"alias_kind":"pith_short_8","alias_value":"S3Z7WJQY","created_at":"2026-06-10T01:10:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:S3Z7WJQYYNHU7RZ35O7W45MBMH","target":"record","payload":{"canonical_record":{"source":{"id":"2606.10566","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-06-09T08:29:21Z","cross_cats_sorted":[],"title_canon_sha256":"17bcd8a880dbcc0bc157e0c2115c1a4ff28ab8effd87adeb25527a5662334ccc","abstract_canon_sha256":"e80315b1bdac0c0260f8b098888423529a9f3813d959d1c6bf4f77e0b6f2e9a6"},"schema_version":"1.0"},"canonical_sha256":"96f3fb2618c34f4fc73bebbf6e758161cc42d6d94ccaed602c222892de05eb9a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-10T01:10:26.873615Z","signature_b64":"b2zqi4zAgaZIwM7fpbj7nwpH2x6nNODq4JwfBaT4g0kz9y4FXyKX3wXXmiPWjh/8nd6ghH7zfmkSbx7DPfcZAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"96f3fb2618c34f4fc73bebbf6e758161cc42d6d94ccaed602c222892de05eb9a","last_reissued_at":"2026-06-10T01:10:26.872758Z","signature_status":"signed_v1","first_computed_at":"2026-06-10T01:10:26.872758Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.10566","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":"2026-06-10T01:10:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rj8qOAtW8Juxm2Yqycen92kFv+fG5Hr7F4UxUAN/LmVSvmD2pcC/NazCBsAIT8cj3+KTGilwK1fu6V6s4u7hCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T02:18:15.833417Z"},"content_sha256":"2ebebfacddd51de971e076e365307d9d26d3aee311064f6b72643d39490fa989","schema_version":"1.0","event_id":"sha256:2ebebfacddd51de971e076e365307d9d26d3aee311064f6b72643d39490fa989"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:S3Z7WJQYYNHU7RZ35O7W45MBMH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Discovery of EP J175257.3-351923 as a Candidate Black Hole Low-Mass X-ray Binary","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Coleiro, A. Marino, A. Rau, C .Y. Dai, D. G\\\"otz, D. Y. Li, F. Cangemi, F. Coti Zelati, G. B. Zhang, G. L. Huang, H. Feng, H. Q. Cheng, H. W. Pan, J. Wang, L. P. Xin, L. Tao, L. Zhang, N. Rea, P. Maggi, Q. C. Zhao, Q. Y. Wu, R. C. Ma, R. Soria, S. Brennan, S. Guillot, S. N. Zhang, W. D. Zhang, W. M. Yuan, X. Ma, Y. F. Huang, Y. Huang, Z. H. Yao, Z. S. Li","submitted_at":"2026-06-09T08:29:21Z","abstract_excerpt":"We report the discovery of a new X-ray transient, EP~J175257.3--351923 (EP250916a), by the \\textit{Einstein Probe} (EP) near the Galactic plane. The outburst lasted for at least $\\gtrsim 40$~days, reached a peak 2--10 keV flux of $\\sim 4 \\times 10^{-10}$~erg~cm$^{-2}$~s$^{-1}$, and exhibited a fast-rise, exponential-decay (FRED) profile typical of X-ray binary outbursts. The source remained in the hard state throughout the outburst, with only modest variations in the photon index ($\\sim 1.6$--$2.2$) and no evidence for a spectral state transition. Broadband spectral modeling suggests a truncat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.10566","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2606.10566/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-06-10T01:10:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"egAuU+WHdp5eSOQTryIWm9IVzKPQXqc8ynt5YdaNAoJVg7amXkNazCq3s7bsAHX1f4XG9z1B/3BTgkpJB0IRDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T02:18:15.833944Z"},"content_sha256":"01b582becdbb6751c75344e0ee5528d25adcc46b53c9ede8398187d07b867c30","schema_version":"1.0","event_id":"sha256:01b582becdbb6751c75344e0ee5528d25adcc46b53c9ede8398187d07b867c30"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/S3Z7WJQYYNHU7RZ35O7W45MBMH/bundle.json","state_url":"https://pith.science/pith/S3Z7WJQYYNHU7RZ35O7W45MBMH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/S3Z7WJQYYNHU7RZ35O7W45MBMH/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":"2026-06-28T02:18:15Z","links":{"resolver":"https://pith.science/pith/S3Z7WJQYYNHU7RZ35O7W45MBMH","bundle":"https://pith.science/pith/S3Z7WJQYYNHU7RZ35O7W45MBMH/bundle.json","state":"https://pith.science/pith/S3Z7WJQYYNHU7RZ35O7W45MBMH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/S3Z7WJQYYNHU7RZ35O7W45MBMH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:S3Z7WJQYYNHU7RZ35O7W45MBMH","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":"e80315b1bdac0c0260f8b098888423529a9f3813d959d1c6bf4f77e0b6f2e9a6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-06-09T08:29:21Z","title_canon_sha256":"17bcd8a880dbcc0bc157e0c2115c1a4ff28ab8effd87adeb25527a5662334ccc"},"schema_version":"1.0","source":{"id":"2606.10566","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.10566","created_at":"2026-06-10T01:10:26Z"},{"alias_kind":"arxiv_version","alias_value":"2606.10566v1","created_at":"2026-06-10T01:10:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.10566","created_at":"2026-06-10T01:10:26Z"},{"alias_kind":"pith_short_12","alias_value":"S3Z7WJQYYNHU","created_at":"2026-06-10T01:10:26Z"},{"alias_kind":"pith_short_16","alias_value":"S3Z7WJQYYNHU7RZ3","created_at":"2026-06-10T01:10:26Z"},{"alias_kind":"pith_short_8","alias_value":"S3Z7WJQY","created_at":"2026-06-10T01:10:26Z"}],"graph_snapshots":[{"event_id":"sha256:01b582becdbb6751c75344e0ee5528d25adcc46b53c9ede8398187d07b867c30","target":"graph","created_at":"2026-06-10T01:10:26Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2606.10566/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report the discovery of a new X-ray transient, EP~J175257.3--351923 (EP250916a), by the \\textit{Einstein Probe} (EP) near the Galactic plane. The outburst lasted for at least $\\gtrsim 40$~days, reached a peak 2--10 keV flux of $\\sim 4 \\times 10^{-10}$~erg~cm$^{-2}$~s$^{-1}$, and exhibited a fast-rise, exponential-decay (FRED) profile typical of X-ray binary outbursts. The source remained in the hard state throughout the outburst, with only modest variations in the photon index ($\\sim 1.6$--$2.2$) and no evidence for a spectral state transition. Broadband spectral modeling suggests a truncat","authors_text":"A. Coleiro, A. Marino, A. Rau, C .Y. Dai, D. G\\\"otz, D. Y. Li, F. Cangemi, F. Coti Zelati, G. B. Zhang, G. L. Huang, H. Feng, H. Q. Cheng, H. W. Pan, J. Wang, L. P. Xin, L. Tao, L. Zhang, N. Rea, P. Maggi, Q. C. Zhao, Q. Y. Wu, R. C. Ma, R. Soria, S. Brennan, S. Guillot, S. N. Zhang, W. D. Zhang, W. M. Yuan, X. Ma, Y. F. Huang, Y. Huang, Z. H. Yao, Z. S. Li","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-06-09T08:29:21Z","title":"Discovery of EP J175257.3-351923 as a Candidate Black Hole Low-Mass X-ray Binary"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.10566","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":"sha256:2ebebfacddd51de971e076e365307d9d26d3aee311064f6b72643d39490fa989","target":"record","created_at":"2026-06-10T01:10:26Z","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":"e80315b1bdac0c0260f8b098888423529a9f3813d959d1c6bf4f77e0b6f2e9a6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-06-09T08:29:21Z","title_canon_sha256":"17bcd8a880dbcc0bc157e0c2115c1a4ff28ab8effd87adeb25527a5662334ccc"},"schema_version":"1.0","source":{"id":"2606.10566","kind":"arxiv","version":1}},"canonical_sha256":"96f3fb2618c34f4fc73bebbf6e758161cc42d6d94ccaed602c222892de05eb9a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"96f3fb2618c34f4fc73bebbf6e758161cc42d6d94ccaed602c222892de05eb9a","first_computed_at":"2026-06-10T01:10:26.872758Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-10T01:10:26.872758Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"b2zqi4zAgaZIwM7fpbj7nwpH2x6nNODq4JwfBaT4g0kz9y4FXyKX3wXXmiPWjh/8nd6ghH7zfmkSbx7DPfcZAg==","signature_status":"signed_v1","signed_at":"2026-06-10T01:10:26.873615Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.10566","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2ebebfacddd51de971e076e365307d9d26d3aee311064f6b72643d39490fa989","sha256:01b582becdbb6751c75344e0ee5528d25adcc46b53c9ede8398187d07b867c30"],"state_sha256":"235e98dd9c34b0cfdc4d477299c28ccfea060ad7d93cd59479a852c63e234268"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"43ElbBtUHnfMZIl6anGbHeoAZ+uglxumtWWhYPYddEDSbHFiZ52+qvLVD1hL9AJTwdwOuXLwV6d7SLhkXGaHAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T02:18:15.835946Z","bundle_sha256":"fda928de0fc7e4c887f6346ff79fe0194428e08d0d1c448f5ce9d1cc195e74b3"}}