{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:BE4X5K4ZXHLJZHZSNP3HTNFFXC","short_pith_number":"pith:BE4X5K4Z","canonical_record":{"source":{"id":"2605.16526","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-05-15T18:22:44Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"9a60ce6d6c47dd455f516e5add60a1ae660e4da576b1120a352ea64a6dd338b9","abstract_canon_sha256":"fe1b320c8ea704fa440d89f2bcbd4d2d4fa8324775addcc2a045a709e85a0a4b"},"schema_version":"1.0"},"canonical_sha256":"09397eab99b9d69c9f326bf679b4a5b884fee5aececdff8ad9185b1237752730","source":{"kind":"arxiv","id":"2605.16526","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.16526","created_at":"2026-05-20T00:02:27Z"},{"alias_kind":"arxiv_version","alias_value":"2605.16526v1","created_at":"2026-05-20T00:02:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.16526","created_at":"2026-05-20T00:02:27Z"},{"alias_kind":"pith_short_12","alias_value":"BE4X5K4ZXHLJ","created_at":"2026-05-20T00:02:27Z"},{"alias_kind":"pith_short_16","alias_value":"BE4X5K4ZXHLJZHZS","created_at":"2026-05-20T00:02:27Z"},{"alias_kind":"pith_short_8","alias_value":"BE4X5K4Z","created_at":"2026-05-20T00:02:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:BE4X5K4ZXHLJZHZSNP3HTNFFXC","target":"record","payload":{"canonical_record":{"source":{"id":"2605.16526","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-05-15T18:22:44Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"9a60ce6d6c47dd455f516e5add60a1ae660e4da576b1120a352ea64a6dd338b9","abstract_canon_sha256":"fe1b320c8ea704fa440d89f2bcbd4d2d4fa8324775addcc2a045a709e85a0a4b"},"schema_version":"1.0"},"canonical_sha256":"09397eab99b9d69c9f326bf679b4a5b884fee5aececdff8ad9185b1237752730","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-20T00:02:27.432179Z","signature_b64":"3l0Gc6roNcIbzvpaYNCax0ehfSo61ECdkPZUnAOJC0trI7cds8s9dd3k+N4wvtLfuORDTCbtElFh8ZiaXk2bAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"09397eab99b9d69c9f326bf679b4a5b884fee5aececdff8ad9185b1237752730","last_reissued_at":"2026-05-20T00:02:27.431262Z","signature_status":"signed_v1","first_computed_at":"2026-05-20T00:02:27.431262Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.16526","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":"2026-05-20T00:02:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DSWirQo6YWDD9clcMcVnH6ReVp+wiKIwHEPZX7hlEKqx2PUgvtJIGQFonxIeLGKsA6JSwlykmC0qASSqxyaDAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T17:19:41.019663Z"},"content_sha256":"ffbda7d60564966969dccd730c3a23a6222dab6692f3eac143696153b5d44b8d","schema_version":"1.0","event_id":"sha256:ffbda7d60564966969dccd730c3a23a6222dab6692f3eac143696153b5d44b8d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:BE4X5K4ZXHLJZHZSNP3HTNFFXC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"SN 2023fyq: direct detection of a Type Ibn supernova progenitor and its multi-wavelength environmental constraints","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"The first direct detection of a progenitor for a Type Ibn supernova shows it is a hot luminous star consistent with a binary system.","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"Jifeng Liu, Junjie Wu, Justyn Maund, Ke Wang, Ning-Chen Sun, Qiang Xi, Xinyi Hong, Yali Shao, Yi-Han Zhao","submitted_at":"2026-05-15T18:22:44Z","abstract_excerpt":"Context. Type Ibn supernovae (SNe) are characterized by narrow helium emission lines arising from ejecta-circumstellar medium interaction, yet their progenitors remain debated, with both massive Wolf-Rayet stars and low-mass helium stars in binaries proposed. Aims. We aim to directly identify the progenitor of the Type Ibn SN 2023fyq and to characterize its environment in order to constrain the progenitor's nature and evolutionary channel. Methods. We search for the SN progenitor based on pre-explosion and late-time HST and JWST images and derive its properties by fitting the spectral energy d"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"We discover a pre-explosion source at the SN position, which is consistent with a hot (T>15000 K) and luminous (log(L/L⊙) ≳ 5.5) SN progenitor and a possible host star cluster. The progenitor is confirmed to have disappeared after explosion. Analysis of the SN environment implies that the progenitor likely has an age of log(t/yr) = 7.1--7.2.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The pre-explosion source is physically associated with the supernova (not a chance alignment or unrelated cluster member) and its disappearance is due to the explosion rather than variability or observational limits.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"First direct detection of a Type Ibn supernova progenitor supports a low-mass helium star in a binary system with environmental age log(t/yr) = 7.1-7.2.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"The first direct detection of a progenitor for a Type Ibn supernova shows it is a hot luminous star consistent with a binary system.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"2a90d9c9f0a5a9366a1a0d2359d77bb4be68ccd10d842b566d163098d4be13e9"},"source":{"id":"2605.16526","kind":"arxiv","version":1},"verdict":{"id":"da86a153-c276-4424-a1f7-c3f9624278fe","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-19T21:37:33.006560Z","strongest_claim":"We discover a pre-explosion source at the SN position, which is consistent with a hot (T>15000 K) and luminous (log(L/L⊙) ≳ 5.5) SN progenitor and a possible host star cluster. The progenitor is confirmed to have disappeared after explosion. Analysis of the SN environment implies that the progenitor likely has an age of log(t/yr) = 7.1--7.2.","one_line_summary":"First direct detection of a Type Ibn supernova progenitor supports a low-mass helium star in a binary system with environmental age log(t/yr) = 7.1-7.2.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The pre-explosion source is physically associated with the supernova (not a chance alignment or unrelated cluster member) and its disappearance is due to the explosion rather than variability or observational limits.","pith_extraction_headline":"The first direct detection of a progenitor for a Type Ibn supernova shows it is a hot luminous star consistent with a binary system."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.16526/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"doi_title_agreement","ran_at":"2026-05-19T22:01:23.142724Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"doi_compliance","ran_at":"2026-05-19T21:51:18.377958Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"ai_meta_artifact","ran_at":"2026-05-19T19:33:23.076727Z","status":"skipped","version":"1.0.0","findings_count":0},{"name":"claim_evidence","ran_at":"2026-05-19T19:21:56.940004Z","status":"completed","version":"1.0.0","findings_count":0}],"snapshot_sha256":"4210ca3160d4dd6324981e36d6db5b199edaabdfed16de660f070bf2051d3334"},"references":{"count":43,"sample":[{"doi":"","year":2020,"title":"2020, MNRAS, 496, 2,","work_id":"a201b038-1497-4015-b36e-f3d370559ae6","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"10.1093/mnras/staa1596","year":2009,"title":"doi:10.1093/mnras/staa1596 Asplund, M., Grevesse, N., Sauval, A. J., et al. 2009, ARA&A, 47, 1,","work_id":"b4eb4e14-5879-44fb-ac15-7bddbaaed6b3","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"10.1146/annurev.astro.46.060407.145222","year":2025,"title":"J., N., Jacobson-Galán, W., et al","work_id":"7447ca6b-517b-48a1-aa1d-96507656b5aa","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"10.1086/130766","year":2024,"title":"J., Sollerman, J., Irani, I., et al","work_id":"72552c13-e5fc-4a98-8b58-d2e53d1b89aa","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"10.1111/j.1365-2966.2012.21948.x","year":2012,"title":"2012, MNRAS, 426, 1324, doi: 10.1111/j.1365-2966.2012.21757.x","work_id":"91cc99ad-bdb6-42b2-afbd-e26dad5ec964","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":43,"snapshot_sha256":"d6a5b70d2b351400c151b2603b9b51caeb15f4adb26d861dcd0f33b9aab646ff","internal_anchors":1},"formal_canon":{"evidence_count":2,"snapshot_sha256":"9e9798c831e14a312c3e57559ea96ac4a5ea0d85d500690132bc7e0e4c688585"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":"da86a153-c276-4424-a1f7-c3f9624278fe"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-20T00:02:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rC/C/6nh503x0eLtxHHpZ099R98fAmpePBQ4RIl4f3C41RsxRAxflrSuGz1mWJmLHy6FBVPpmXfGnD6pIZtjCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T17:19:41.020452Z"},"content_sha256":"0e0903cc89e5441d8b4dd7efcc37da4b9000e13455f23fc4de747289b9b254d2","schema_version":"1.0","event_id":"sha256:0e0903cc89e5441d8b4dd7efcc37da4b9000e13455f23fc4de747289b9b254d2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BE4X5K4ZXHLJZHZSNP3HTNFFXC/bundle.json","state_url":"https://pith.science/pith/BE4X5K4ZXHLJZHZSNP3HTNFFXC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BE4X5K4ZXHLJZHZSNP3HTNFFXC/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":"2026-05-22T17:19:41Z","links":{"resolver":"https://pith.science/pith/BE4X5K4ZXHLJZHZSNP3HTNFFXC","bundle":"https://pith.science/pith/BE4X5K4ZXHLJZHZSNP3HTNFFXC/bundle.json","state":"https://pith.science/pith/BE4X5K4ZXHLJZHZSNP3HTNFFXC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BE4X5K4ZXHLJZHZSNP3HTNFFXC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:BE4X5K4ZXHLJZHZSNP3HTNFFXC","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":"fe1b320c8ea704fa440d89f2bcbd4d2d4fa8324775addcc2a045a709e85a0a4b","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-05-15T18:22:44Z","title_canon_sha256":"9a60ce6d6c47dd455f516e5add60a1ae660e4da576b1120a352ea64a6dd338b9"},"schema_version":"1.0","source":{"id":"2605.16526","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.16526","created_at":"2026-05-20T00:02:27Z"},{"alias_kind":"arxiv_version","alias_value":"2605.16526v1","created_at":"2026-05-20T00:02:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.16526","created_at":"2026-05-20T00:02:27Z"},{"alias_kind":"pith_short_12","alias_value":"BE4X5K4ZXHLJ","created_at":"2026-05-20T00:02:27Z"},{"alias_kind":"pith_short_16","alias_value":"BE4X5K4ZXHLJZHZS","created_at":"2026-05-20T00:02:27Z"},{"alias_kind":"pith_short_8","alias_value":"BE4X5K4Z","created_at":"2026-05-20T00:02:27Z"}],"graph_snapshots":[{"event_id":"sha256:0e0903cc89e5441d8b4dd7efcc37da4b9000e13455f23fc4de747289b9b254d2","target":"graph","created_at":"2026-05-20T00:02:27Z","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":4,"items":[{"attestation":"unclaimed","claim_id":"C1","kind":"strongest_claim","source":"verdict.strongest_claim","status":"machine_extracted","text":"We discover a pre-explosion source at the SN position, which is consistent with a hot (T>15000 K) and luminous (log(L/L⊙) ≳ 5.5) SN progenitor and a possible host star cluster. The progenitor is confirmed to have disappeared after explosion. Analysis of the SN environment implies that the progenitor likely has an age of log(t/yr) = 7.1--7.2."},{"attestation":"unclaimed","claim_id":"C2","kind":"weakest_assumption","source":"verdict.weakest_assumption","status":"machine_extracted","text":"The pre-explosion source is physically associated with the supernova (not a chance alignment or unrelated cluster member) and its disappearance is due to the explosion rather than variability or observational limits."},{"attestation":"unclaimed","claim_id":"C3","kind":"one_line_summary","source":"verdict.one_line_summary","status":"machine_extracted","text":"First direct detection of a Type Ibn supernova progenitor supports a low-mass helium star in a binary system with environmental age log(t/yr) = 7.1-7.2."},{"attestation":"unclaimed","claim_id":"C4","kind":"headline","source":"verdict.pith_extraction.headline","status":"machine_extracted","text":"The first direct detection of a progenitor for a Type Ibn supernova shows it is a hot luminous star consistent with a binary system."}],"snapshot_sha256":"2a90d9c9f0a5a9366a1a0d2359d77bb4be68ccd10d842b566d163098d4be13e9"},"formal_canon":{"evidence_count":2,"snapshot_sha256":"9e9798c831e14a312c3e57559ea96ac4a5ea0d85d500690132bc7e0e4c688585"},"integrity":{"available":true,"clean":true,"detectors_run":[{"findings_count":0,"name":"doi_title_agreement","ran_at":"2026-05-19T22:01:23.142724Z","status":"completed","version":"1.0.0"},{"findings_count":0,"name":"doi_compliance","ran_at":"2026-05-19T21:51:18.377958Z","status":"completed","version":"1.0.0"},{"findings_count":0,"name":"ai_meta_artifact","ran_at":"2026-05-19T19:33:23.076727Z","status":"skipped","version":"1.0.0"},{"findings_count":0,"name":"claim_evidence","ran_at":"2026-05-19T19:21:56.940004Z","status":"completed","version":"1.0.0"}],"endpoint":"/pith/2605.16526/integrity.json","findings":[],"snapshot_sha256":"4210ca3160d4dd6324981e36d6db5b199edaabdfed16de660f070bf2051d3334","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Context. Type Ibn supernovae (SNe) are characterized by narrow helium emission lines arising from ejecta-circumstellar medium interaction, yet their progenitors remain debated, with both massive Wolf-Rayet stars and low-mass helium stars in binaries proposed. Aims. We aim to directly identify the progenitor of the Type Ibn SN 2023fyq and to characterize its environment in order to constrain the progenitor's nature and evolutionary channel. Methods. We search for the SN progenitor based on pre-explosion and late-time HST and JWST images and derive its properties by fitting the spectral energy d","authors_text":"Jifeng Liu, Junjie Wu, Justyn Maund, Ke Wang, Ning-Chen Sun, Qiang Xi, Xinyi Hong, Yali Shao, Yi-Han Zhao","cross_cats":["astro-ph.HE"],"headline":"The first direct detection of a progenitor for a Type Ibn supernova shows it is a hot luminous star consistent with a binary system.","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-05-15T18:22:44Z","title":"SN 2023fyq: direct detection of a Type Ibn supernova progenitor and its multi-wavelength environmental constraints"},"references":{"count":43,"internal_anchors":1,"resolved_work":43,"sample":[{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":1,"title":"2020, MNRAS, 496, 2,","work_id":"a201b038-1497-4015-b36e-f3d370559ae6","year":2020},{"cited_arxiv_id":"","doi":"10.1093/mnras/staa1596","is_internal_anchor":false,"ref_index":2,"title":"doi:10.1093/mnras/staa1596 Asplund, M., Grevesse, N., Sauval, A. J., et al. 2009, ARA&A, 47, 1,","work_id":"b4eb4e14-5879-44fb-ac15-7bddbaaed6b3","year":2009},{"cited_arxiv_id":"","doi":"10.1146/annurev.astro.46.060407.145222","is_internal_anchor":false,"ref_index":3,"title":"J., N., Jacobson-Galán, W., et al","work_id":"7447ca6b-517b-48a1-aa1d-96507656b5aa","year":2025},{"cited_arxiv_id":"","doi":"10.1086/130766","is_internal_anchor":false,"ref_index":4,"title":"J., Sollerman, J., Irani, I., et al","work_id":"72552c13-e5fc-4a98-8b58-d2e53d1b89aa","year":2024},{"cited_arxiv_id":"","doi":"10.1111/j.1365-2966.2012.21948.x","is_internal_anchor":false,"ref_index":5,"title":"2012, MNRAS, 426, 1324, doi: 10.1111/j.1365-2966.2012.21757.x","work_id":"91cc99ad-bdb6-42b2-afbd-e26dad5ec964","year":2012}],"snapshot_sha256":"d6a5b70d2b351400c151b2603b9b51caeb15f4adb26d861dcd0f33b9aab646ff"},"source":{"id":"2605.16526","kind":"arxiv","version":1},"verdict":{"created_at":"2026-05-19T21:37:33.006560Z","id":"da86a153-c276-4424-a1f7-c3f9624278fe","model_set":{"reader":"grok-4.3"},"one_line_summary":"First direct detection of a Type Ibn supernova progenitor supports a low-mass helium star in a binary system with environmental age log(t/yr) = 7.1-7.2.","pipeline_version":"pith-pipeline@v0.9.0","pith_extraction_headline":"The first direct detection of a progenitor for a Type Ibn supernova shows it is a hot luminous star consistent with a binary system.","strongest_claim":"We discover a pre-explosion source at the SN position, which is consistent with a hot (T>15000 K) and luminous (log(L/L⊙) ≳ 5.5) SN progenitor and a possible host star cluster. The progenitor is confirmed to have disappeared after explosion. Analysis of the SN environment implies that the progenitor likely has an age of log(t/yr) = 7.1--7.2.","weakest_assumption":"The pre-explosion source is physically associated with the supernova (not a chance alignment or unrelated cluster member) and its disappearance is due to the explosion rather than variability or observational limits."}},"verdict_id":"da86a153-c276-4424-a1f7-c3f9624278fe"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:ffbda7d60564966969dccd730c3a23a6222dab6692f3eac143696153b5d44b8d","target":"record","created_at":"2026-05-20T00:02:27Z","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":"fe1b320c8ea704fa440d89f2bcbd4d2d4fa8324775addcc2a045a709e85a0a4b","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-05-15T18:22:44Z","title_canon_sha256":"9a60ce6d6c47dd455f516e5add60a1ae660e4da576b1120a352ea64a6dd338b9"},"schema_version":"1.0","source":{"id":"2605.16526","kind":"arxiv","version":1}},"canonical_sha256":"09397eab99b9d69c9f326bf679b4a5b884fee5aececdff8ad9185b1237752730","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"09397eab99b9d69c9f326bf679b4a5b884fee5aececdff8ad9185b1237752730","first_computed_at":"2026-05-20T00:02:27.431262Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T00:02:27.431262Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3l0Gc6roNcIbzvpaYNCax0ehfSo61ECdkPZUnAOJC0trI7cds8s9dd3k+N4wvtLfuORDTCbtElFh8ZiaXk2bAQ==","signature_status":"signed_v1","signed_at":"2026-05-20T00:02:27.432179Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.16526","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ffbda7d60564966969dccd730c3a23a6222dab6692f3eac143696153b5d44b8d","sha256:0e0903cc89e5441d8b4dd7efcc37da4b9000e13455f23fc4de747289b9b254d2"],"state_sha256":"b0a87e9ced9e530267d0a91d42dc2ffb5a7a590ef9b633584ddfc9dc66c61ad3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qCEpKm+HgnKfYIwRorsatJyoBqfm4aLfTtiPnYlqZaGEzPUzGgXC3fARBMQWrNoSujizPK6X0dIvmWnbdfbLDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-22T17:19:41.024329Z","bundle_sha256":"f24eb72899cf5a873f1c3daa1714ac878359254775eca84d36d66cb2af48358e"}}