{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:FEEXXSV6UAQLYUA6MWRXZJKD4A","short_pith_number":"pith:FEEXXSV6","canonical_record":{"source":{"id":"2409.19056","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-09-27T18:00:03Z","cross_cats_sorted":[],"title_canon_sha256":"0eb40f9162a6a9adb91b30c51a239f40fc0b11eb3f97ba07bf2dae63794e9376","abstract_canon_sha256":"0352c1d05e5dec59071edd50868105c9d5bf460ba5a85b84e64ebac7770213ab"},"schema_version":"1.0"},"canonical_sha256":"29097bcabea020bc501e65a37ca543e02f3b1df0cb6d7c38f33f25323dcac3fa","source":{"kind":"arxiv","id":"2409.19056","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.19056","created_at":"2026-07-05T09:13:10Z"},{"alias_kind":"arxiv_version","alias_value":"2409.19056v1","created_at":"2026-07-05T09:13:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.19056","created_at":"2026-07-05T09:13:10Z"},{"alias_kind":"pith_short_12","alias_value":"FEEXXSV6UAQL","created_at":"2026-07-05T09:13:10Z"},{"alias_kind":"pith_short_16","alias_value":"FEEXXSV6UAQLYUA6","created_at":"2026-07-05T09:13:10Z"},{"alias_kind":"pith_short_8","alias_value":"FEEXXSV6","created_at":"2026-07-05T09:13:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:FEEXXSV6UAQLYUA6MWRXZJKD4A","target":"record","payload":{"canonical_record":{"source":{"id":"2409.19056","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-09-27T18:00:03Z","cross_cats_sorted":[],"title_canon_sha256":"0eb40f9162a6a9adb91b30c51a239f40fc0b11eb3f97ba07bf2dae63794e9376","abstract_canon_sha256":"0352c1d05e5dec59071edd50868105c9d5bf460ba5a85b84e64ebac7770213ab"},"schema_version":"1.0"},"canonical_sha256":"29097bcabea020bc501e65a37ca543e02f3b1df0cb6d7c38f33f25323dcac3fa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:13:10.215727Z","signature_b64":"nxfvQLOm6eWxfPywVq1AV592iIJSSC6tpEEcbI5mExUeiwGCRYcTOOOEDb3A42BMCbS0RS4YNGCL6cNu7xwBAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"29097bcabea020bc501e65a37ca543e02f3b1df0cb6d7c38f33f25323dcac3fa","last_reissued_at":"2026-07-05T09:13:10.215169Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:13:10.215169Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2409.19056","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":"2026-07-05T09:13:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t8Jc57OuwK9zN4pgNC31oEJO2KDFi0k2vv2/0NIjjOujumDNT1v5QTgz/Rjv6/eAC9fHLvttEAoXSMRICe6JBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T09:09:38.839595Z"},"content_sha256":"dea18b3181478c75940c4a391c8bc1601561dd33b736c2f7b467987641e3e845","schema_version":"1.0","event_id":"sha256:dea18b3181478c75940c4a391c8bc1601561dd33b736c2f7b467987641e3e845"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:FEEXXSV6UAQLYUA6MWRXZJKD4A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Einstein Probe transient EP240414a: Linking Fast X-ray Transients, Gamma-ray Bursts and Luminous Fast Blue Optical Transients","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Agnes P. C. van Hoof, Alexander J. van der Horst, Andrew J. Levan, Antonio de Ugarte Postigo, Antonio Martin-Carrillo, Ashley Chrimes, Avishay Gal-Yam, Daniele B. Malesani, Daniel Mata S\\'anchez, Fabio Ragosta, Franz E. Bauer, Giovanna Pugliese, Jacco H. Terwel, Jesper Sollerman, Jonathan Quirola-V\\'asquez, Joseph P. Anderson, Joyce N.D. van Dalen, Llu\\'is Galbany, Luca Izzo, Manuel A. P. Torres, Maria E. Ravasio, Mariusz Gromadzki, Massimiliano De Pasquale, Morgan Fraser, Nial R. Tanvir, Nikhil Sarin, Pall Jakobsson, Paul O'Brien, Peter G. Jonker, Steve Schulze, Stuart P. Littlefair, Tayyaba Zafar, Tomas E. Muller-Bravo","submitted_at":"2024-09-27T18:00:03Z","abstract_excerpt":"Detections of fast X-ray transients (FXTs) have been accrued over the last few decades. However, their origin has remained mysterious. There is now rapid progress thanks to timely discoveries and localisations with the Einstein Probe mission. Early results indicate that FXTs may frequently, but not always, be associated with gamma-ray bursts (GRBs). Here, we report on the multi-wavelength counterpart of FXT EP240414a, which has no reported gamma-ray counterpart. The transient is located 25.7~kpc in projection from a massive galaxy at $z=0.40$. We perform comprehensive photometric and spectrosc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.19056","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/2409.19056/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":"2026-07-05T09:13:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8JFircLPx7hiFBCORpCNo1Itw1cDSf3qC6RkytTPJ6d0VsgSYg3J8WzD4jgRop4v89/FWEcTyjiOOANth9GuDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T09:09:38.839974Z"},"content_sha256":"9aea43eb8fb70580db602d0843703e1d2f35df99218530e88bbf6fb634a3eef4","schema_version":"1.0","event_id":"sha256:9aea43eb8fb70580db602d0843703e1d2f35df99218530e88bbf6fb634a3eef4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FEEXXSV6UAQLYUA6MWRXZJKD4A/bundle.json","state_url":"https://pith.science/pith/FEEXXSV6UAQLYUA6MWRXZJKD4A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FEEXXSV6UAQLYUA6MWRXZJKD4A/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":"2026-07-06T09:09:38Z","links":{"resolver":"https://pith.science/pith/FEEXXSV6UAQLYUA6MWRXZJKD4A","bundle":"https://pith.science/pith/FEEXXSV6UAQLYUA6MWRXZJKD4A/bundle.json","state":"https://pith.science/pith/FEEXXSV6UAQLYUA6MWRXZJKD4A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FEEXXSV6UAQLYUA6MWRXZJKD4A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:FEEXXSV6UAQLYUA6MWRXZJKD4A","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":"0352c1d05e5dec59071edd50868105c9d5bf460ba5a85b84e64ebac7770213ab","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-09-27T18:00:03Z","title_canon_sha256":"0eb40f9162a6a9adb91b30c51a239f40fc0b11eb3f97ba07bf2dae63794e9376"},"schema_version":"1.0","source":{"id":"2409.19056","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.19056","created_at":"2026-07-05T09:13:10Z"},{"alias_kind":"arxiv_version","alias_value":"2409.19056v1","created_at":"2026-07-05T09:13:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.19056","created_at":"2026-07-05T09:13:10Z"},{"alias_kind":"pith_short_12","alias_value":"FEEXXSV6UAQL","created_at":"2026-07-05T09:13:10Z"},{"alias_kind":"pith_short_16","alias_value":"FEEXXSV6UAQLYUA6","created_at":"2026-07-05T09:13:10Z"},{"alias_kind":"pith_short_8","alias_value":"FEEXXSV6","created_at":"2026-07-05T09:13:10Z"}],"graph_snapshots":[{"event_id":"sha256:9aea43eb8fb70580db602d0843703e1d2f35df99218530e88bbf6fb634a3eef4","target":"graph","created_at":"2026-07-05T09:13:10Z","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/2409.19056/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Detections of fast X-ray transients (FXTs) have been accrued over the last few decades. However, their origin has remained mysterious. There is now rapid progress thanks to timely discoveries and localisations with the Einstein Probe mission. Early results indicate that FXTs may frequently, but not always, be associated with gamma-ray bursts (GRBs). Here, we report on the multi-wavelength counterpart of FXT EP240414a, which has no reported gamma-ray counterpart. The transient is located 25.7~kpc in projection from a massive galaxy at $z=0.40$. We perform comprehensive photometric and spectrosc","authors_text":"Agnes P. C. van Hoof, Alexander J. van der Horst, Andrew J. Levan, Antonio de Ugarte Postigo, Antonio Martin-Carrillo, Ashley Chrimes, Avishay Gal-Yam, Daniele B. Malesani, Daniel Mata S\\'anchez, Fabio Ragosta, Franz E. Bauer, Giovanna Pugliese, Jacco H. Terwel, Jesper Sollerman, Jonathan Quirola-V\\'asquez, Joseph P. Anderson, Joyce N.D. van Dalen, Llu\\'is Galbany, Luca Izzo, Manuel A. P. Torres, Maria E. Ravasio, Mariusz Gromadzki, Massimiliano De Pasquale, Morgan Fraser, Nial R. Tanvir, Nikhil Sarin, Pall Jakobsson, Paul O'Brien, Peter G. Jonker, Steve Schulze, Stuart P. Littlefair, Tayyaba Zafar, Tomas E. Muller-Bravo","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-09-27T18:00:03Z","title":"The Einstein Probe transient EP240414a: Linking Fast X-ray Transients, Gamma-ray Bursts and Luminous Fast Blue Optical Transients"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.19056","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:dea18b3181478c75940c4a391c8bc1601561dd33b736c2f7b467987641e3e845","target":"record","created_at":"2026-07-05T09:13:10Z","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":"0352c1d05e5dec59071edd50868105c9d5bf460ba5a85b84e64ebac7770213ab","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-09-27T18:00:03Z","title_canon_sha256":"0eb40f9162a6a9adb91b30c51a239f40fc0b11eb3f97ba07bf2dae63794e9376"},"schema_version":"1.0","source":{"id":"2409.19056","kind":"arxiv","version":1}},"canonical_sha256":"29097bcabea020bc501e65a37ca543e02f3b1df0cb6d7c38f33f25323dcac3fa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"29097bcabea020bc501e65a37ca543e02f3b1df0cb6d7c38f33f25323dcac3fa","first_computed_at":"2026-07-05T09:13:10.215169Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:13:10.215169Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nxfvQLOm6eWxfPywVq1AV592iIJSSC6tpEEcbI5mExUeiwGCRYcTOOOEDb3A42BMCbS0RS4YNGCL6cNu7xwBAw==","signature_status":"signed_v1","signed_at":"2026-07-05T09:13:10.215727Z","signed_message":"canonical_sha256_bytes"},"source_id":"2409.19056","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dea18b3181478c75940c4a391c8bc1601561dd33b736c2f7b467987641e3e845","sha256:9aea43eb8fb70580db602d0843703e1d2f35df99218530e88bbf6fb634a3eef4"],"state_sha256":"8eabc17a0f3eb1bc5b03af25909a12ae25ab28cf39ba0dcbe72ca2cb19ba7cdb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UG5q9Woj9dNW4xSmtvhW/qccECax8Db2dQvA+iwGczA/9FHym0uNLlU5XiVZOUIj/JQJjodL8JUu7KhW7oQHBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T09:09:38.841895Z","bundle_sha256":"fa6c1c8d1dadca2ebe469ed9fdf6cb02b08898b0294fc40d26d58e390e204577"}}