{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:B4HSUDQUR35RLGN4GFGFLMC5QM","short_pith_number":"pith:B4HSUDQU","canonical_record":{"source":{"id":"2608.13321","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-08-13T14:46:05Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"49214870a898f4b358dd8675065d34fc989e810e4f444c17e852b51620670e9e","abstract_canon_sha256":"ae987d464e2e451b27e34d0351e3dc003a3d47e1d9eda5a7198afb426292083f"},"schema_version":"1.0"},"canonical_sha256":"0f0f2a0e148efb1599bc314c55b05d832205650919f4b8f2abb805ae82dbeb68","source":{"kind":"arxiv","id":"2608.13321","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.13321","created_at":"2026-08-14T01:04:12Z"},{"alias_kind":"arxiv_version","alias_value":"2608.13321v1","created_at":"2026-08-14T01:04:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.13321","created_at":"2026-08-14T01:04:12Z"},{"alias_kind":"pith_short_12","alias_value":"B4HSUDQUR35R","created_at":"2026-08-14T01:04:12Z"},{"alias_kind":"pith_short_16","alias_value":"B4HSUDQUR35RLGN4","created_at":"2026-08-14T01:04:12Z"},{"alias_kind":"pith_short_8","alias_value":"B4HSUDQU","created_at":"2026-08-14T01:04:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:B4HSUDQUR35RLGN4GFGFLMC5QM","target":"record","payload":{"canonical_record":{"source":{"id":"2608.13321","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-08-13T14:46:05Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"49214870a898f4b358dd8675065d34fc989e810e4f444c17e852b51620670e9e","abstract_canon_sha256":"ae987d464e2e451b27e34d0351e3dc003a3d47e1d9eda5a7198afb426292083f"},"schema_version":"1.0"},"canonical_sha256":"0f0f2a0e148efb1599bc314c55b05d832205650919f4b8f2abb805ae82dbeb68","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-14T01:04:12.666182Z","signature_b64":"p0N/8TfX/wrkiWaeFv3lQ3cAbiKuzZS9zBTOHwkIavS/nRGn7YM231lgx+6NM2PplEPS5ykWbGtIggz+SJEKBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0f0f2a0e148efb1599bc314c55b05d832205650919f4b8f2abb805ae82dbeb68","last_reissued_at":"2026-08-14T01:04:12.664614Z","signature_status":"signed_v1","first_computed_at":"2026-08-14T01:04:12.664614Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2608.13321","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":"2026-08-14T01:04:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0VIhJs2qAGyxQKNQq9HQ3NQQzalnJ3kbP0WMbnd5tJi/EpMzKdPaxh3JKXL+vt7SRV17tKVJbJFLbgc6HfDTAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T19:15:34.819799Z"},"content_sha256":"1d5d8417648429a4eb58c2f46338690b847cfb31663f59035f4d50d0ecc69a00","schema_version":"1.0","event_id":"sha256:1d5d8417648429a4eb58c2f46338690b847cfb31663f59035f4d50d0ecc69a00"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:B4HSUDQUR35RLGN4GFGFLMC5QM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"JWST Detects a Dusty AGB-like Source Before the Type Ia-CSM Supernova 2026sqf","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"Amar Aryan, Anan Lu, Andrea Reguitti, Braden Garretson, Chuck Cynamon, Danielle Dickinson, Dan Milisavljevic, Daryl Haggard, Dylan Caudill, Martin Bureau, Maximilian Stritzinger, Noah Zimmer, Ori D. Fox, Patrick Wiggins, Schuyler D. Van Dyk, Selcuk Topal, Seppo Mattila, Tam\\'as Szalai, Thomas Moore, Thomas M. Reynolds, Timothy A. Davis, Ting-Wan Chen, Tuomas Kangas, Uliana Pylypenko, Woorak Choi","submitted_at":"2026-08-13T14:46:05Z","abstract_excerpt":"Supernova (SN) 2026sqf recently appeared in the nearby face-on spiral galaxy NGC 3310 and has shown signs of strong interaction with a circumstellar medium (CSM). Such intense interaction, rare among nearby SNe, offers a valuable opportunity to reveal details on the origin and nature of its progenitor system. We analyzed the early-phase spectra and light curves (LCs) of SN 2026sqf. The general shapes of the observed spectra, the strengths of the emission lines, and the LC evolution all suggest that SN 2026sqf belongs to the rare SN Ia-CSM subclass. If confirmed, this would be the closest known"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.13321","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/2608.13321/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":"2026-08-14T01:04:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fCUfwKVZhVtxgEwcDMnYL/HA+Hm7OHUyhsrUsNmsrqKGiAIwRP5e5YIONGSiJMreBD0Pjt3NR2S4/YFHTxevAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T19:15:34.820174Z"},"content_sha256":"51838428c2fdba7cb3b8baf38b8d78ac307f83ec78b278203e072deadbb654f6","schema_version":"1.0","event_id":"sha256:51838428c2fdba7cb3b8baf38b8d78ac307f83ec78b278203e072deadbb654f6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/B4HSUDQUR35RLGN4GFGFLMC5QM/bundle.json","state_url":"https://pith.science/pith/B4HSUDQUR35RLGN4GFGFLMC5QM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/B4HSUDQUR35RLGN4GFGFLMC5QM/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":"2026-08-14T19:15:34Z","links":{"resolver":"https://pith.science/pith/B4HSUDQUR35RLGN4GFGFLMC5QM","bundle":"https://pith.science/pith/B4HSUDQUR35RLGN4GFGFLMC5QM/bundle.json","state":"https://pith.science/pith/B4HSUDQUR35RLGN4GFGFLMC5QM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/B4HSUDQUR35RLGN4GFGFLMC5QM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:B4HSUDQUR35RLGN4GFGFLMC5QM","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":"ae987d464e2e451b27e34d0351e3dc003a3d47e1d9eda5a7198afb426292083f","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-08-13T14:46:05Z","title_canon_sha256":"49214870a898f4b358dd8675065d34fc989e810e4f444c17e852b51620670e9e"},"schema_version":"1.0","source":{"id":"2608.13321","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.13321","created_at":"2026-08-14T01:04:12Z"},{"alias_kind":"arxiv_version","alias_value":"2608.13321v1","created_at":"2026-08-14T01:04:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.13321","created_at":"2026-08-14T01:04:12Z"},{"alias_kind":"pith_short_12","alias_value":"B4HSUDQUR35R","created_at":"2026-08-14T01:04:12Z"},{"alias_kind":"pith_short_16","alias_value":"B4HSUDQUR35RLGN4","created_at":"2026-08-14T01:04:12Z"},{"alias_kind":"pith_short_8","alias_value":"B4HSUDQU","created_at":"2026-08-14T01:04:12Z"}],"graph_snapshots":[{"event_id":"sha256:51838428c2fdba7cb3b8baf38b8d78ac307f83ec78b278203e072deadbb654f6","target":"graph","created_at":"2026-08-14T01:04:12Z","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/2608.13321/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Supernova (SN) 2026sqf recently appeared in the nearby face-on spiral galaxy NGC 3310 and has shown signs of strong interaction with a circumstellar medium (CSM). Such intense interaction, rare among nearby SNe, offers a valuable opportunity to reveal details on the origin and nature of its progenitor system. We analyzed the early-phase spectra and light curves (LCs) of SN 2026sqf. The general shapes of the observed spectra, the strengths of the emission lines, and the LC evolution all suggest that SN 2026sqf belongs to the rare SN Ia-CSM subclass. If confirmed, this would be the closest known","authors_text":"Amar Aryan, Anan Lu, Andrea Reguitti, Braden Garretson, Chuck Cynamon, Danielle Dickinson, Dan Milisavljevic, Daryl Haggard, Dylan Caudill, Martin Bureau, Maximilian Stritzinger, Noah Zimmer, Ori D. Fox, Patrick Wiggins, Schuyler D. Van Dyk, Selcuk Topal, Seppo Mattila, Tam\\'as Szalai, Thomas Moore, Thomas M. Reynolds, Timothy A. Davis, Ting-Wan Chen, Tuomas Kangas, Uliana Pylypenko, Woorak Choi","cross_cats":["astro-ph.HE"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-08-13T14:46:05Z","title":"JWST Detects a Dusty AGB-like Source Before the Type Ia-CSM Supernova 2026sqf"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.13321","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":"sha256:1d5d8417648429a4eb58c2f46338690b847cfb31663f59035f4d50d0ecc69a00","target":"record","created_at":"2026-08-14T01:04:12Z","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":"ae987d464e2e451b27e34d0351e3dc003a3d47e1d9eda5a7198afb426292083f","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-08-13T14:46:05Z","title_canon_sha256":"49214870a898f4b358dd8675065d34fc989e810e4f444c17e852b51620670e9e"},"schema_version":"1.0","source":{"id":"2608.13321","kind":"arxiv","version":1}},"canonical_sha256":"0f0f2a0e148efb1599bc314c55b05d832205650919f4b8f2abb805ae82dbeb68","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0f0f2a0e148efb1599bc314c55b05d832205650919f4b8f2abb805ae82dbeb68","first_computed_at":"2026-08-14T01:04:12.664614Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-14T01:04:12.664614Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"p0N/8TfX/wrkiWaeFv3lQ3cAbiKuzZS9zBTOHwkIavS/nRGn7YM231lgx+6NM2PplEPS5ykWbGtIggz+SJEKBQ==","signature_status":"signed_v1","signed_at":"2026-08-14T01:04:12.666182Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.13321","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1d5d8417648429a4eb58c2f46338690b847cfb31663f59035f4d50d0ecc69a00","sha256:51838428c2fdba7cb3b8baf38b8d78ac307f83ec78b278203e072deadbb654f6"],"state_sha256":"96fc83bc515521d8766bdbeb710483ecefde65be18bad691fe513f72babb8fbc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jf4oCFgtag+KuR4Qw/UMy0ST8HxomNSQo2UsbnYSbr+xOD6kEZxjDeWBTlM2YQ4Ruk5A3cZT/eR0QUgdTtwTDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T19:15:34.823243Z","bundle_sha256":"31c1ff33751ee3ed2d8a336e3ca64c555f2de9a1f3e51660abd256697cb81a82"}}