{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:GOY6FEQNXBATZYK7WMS4Y7FULP","short_pith_number":"pith:GOY6FEQN","canonical_record":{"source":{"id":"2209.10882","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2022-09-22T09:32:34Z","cross_cats_sorted":[],"title_canon_sha256":"db0a6762f1027f777c3518d49b817fc0932c89e6cf43fa92d9c8aa2ac19fc67a","abstract_canon_sha256":"e476313eda69353cc897e2356242f2e500b2393e1a4ec84bcc2d34262c433eb5"},"schema_version":"1.0"},"canonical_sha256":"33b1e2920db8413ce15fb325cc7cb45bfd8b3e182015ef2965343f4e52c8cde4","source":{"kind":"arxiv","id":"2209.10882","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.10882","created_at":"2026-07-05T05:22:55Z"},{"alias_kind":"arxiv_version","alias_value":"2209.10882v1","created_at":"2026-07-05T05:22:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.10882","created_at":"2026-07-05T05:22:55Z"},{"alias_kind":"pith_short_12","alias_value":"GOY6FEQNXBAT","created_at":"2026-07-05T05:22:55Z"},{"alias_kind":"pith_short_16","alias_value":"GOY6FEQNXBATZYK7","created_at":"2026-07-05T05:22:55Z"},{"alias_kind":"pith_short_8","alias_value":"GOY6FEQN","created_at":"2026-07-05T05:22:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:GOY6FEQNXBATZYK7WMS4Y7FULP","target":"record","payload":{"canonical_record":{"source":{"id":"2209.10882","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2022-09-22T09:32:34Z","cross_cats_sorted":[],"title_canon_sha256":"db0a6762f1027f777c3518d49b817fc0932c89e6cf43fa92d9c8aa2ac19fc67a","abstract_canon_sha256":"e476313eda69353cc897e2356242f2e500b2393e1a4ec84bcc2d34262c433eb5"},"schema_version":"1.0"},"canonical_sha256":"33b1e2920db8413ce15fb325cc7cb45bfd8b3e182015ef2965343f4e52c8cde4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:22:55.228977Z","signature_b64":"lDzLtDEbiW1XS8B+66EeosqxLqOAROS2WLEIBhmHGMUfcKLaUuw6hG4qS8bIvosVe7+SLtzeEWLCWreNuRORBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"33b1e2920db8413ce15fb325cc7cb45bfd8b3e182015ef2965343f4e52c8cde4","last_reissued_at":"2026-07-05T05:22:55.228378Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:22:55.228378Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2209.10882","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":"2026-07-05T05:22:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cXekao77CRAUWizUW1CUl0G7z6r96sbfF/nZgI8gSJagR73J5wfZpvD0y8PKHvw2HUBvZrSuZZLU9+TGXu80Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-18T19:43:39.675458Z"},"content_sha256":"93e1ee5f3f8d22fad44d7d42669d0f5d700dc70bf3a5da68755d67c57654a0b8","schema_version":"1.0","event_id":"sha256:93e1ee5f3f8d22fad44d7d42669d0f5d700dc70bf3a5da68755d67c57654a0b8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:GOY6FEQNXBATZYK7WMS4Y7FULP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"HyperGal: hyperspectral scene modeling for supernova typing with the Integral Field Spectrograph SEDmachine","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"J. D. Neill, J. Lezmy, M. Rigault, M. Smith, Y. Copin","submitted_at":"2022-09-22T09:32:34Z","abstract_excerpt":"Recent developments in time domain astronomy, like the Zwicky Transient Facility, have made possible a daily scan of the entire visible sky, leading to the discovery of hundreds of new transients every night. Among them, 10 to 15 are supernovae (SNe), which have to be classified prior to cosmological use. The Spectral Energy Distribution machine (SEDm), a low resolution Integral Field Spectrograph, has been designed, built, and operated to spectroscopically classify targets detected by the ZTF main camera. The current Pysedm pipeline is limited by contamination when the transient is too close "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.10882","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/2209.10882/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":"2026-07-05T05:22:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/0yEPnFybDRbqZxoeN67NEHNU5ZnMcrIHo5/lkW6R9txM8AEy55pVmghdUV4gLHn3es2MmlbbndfQ4MWgmjxAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-18T19:43:39.675858Z"},"content_sha256":"deb0484827e561b1c75cc75efdd44aa13768e6ba3fd999ce98938696d2b22960","schema_version":"1.0","event_id":"sha256:deb0484827e561b1c75cc75efdd44aa13768e6ba3fd999ce98938696d2b22960"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GOY6FEQNXBATZYK7WMS4Y7FULP/bundle.json","state_url":"https://pith.science/pith/GOY6FEQNXBATZYK7WMS4Y7FULP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GOY6FEQNXBATZYK7WMS4Y7FULP/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":"2026-07-18T19:43:39Z","links":{"resolver":"https://pith.science/pith/GOY6FEQNXBATZYK7WMS4Y7FULP","bundle":"https://pith.science/pith/GOY6FEQNXBATZYK7WMS4Y7FULP/bundle.json","state":"https://pith.science/pith/GOY6FEQNXBATZYK7WMS4Y7FULP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GOY6FEQNXBATZYK7WMS4Y7FULP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:GOY6FEQNXBATZYK7WMS4Y7FULP","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":"e476313eda69353cc897e2356242f2e500b2393e1a4ec84bcc2d34262c433eb5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2022-09-22T09:32:34Z","title_canon_sha256":"db0a6762f1027f777c3518d49b817fc0932c89e6cf43fa92d9c8aa2ac19fc67a"},"schema_version":"1.0","source":{"id":"2209.10882","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.10882","created_at":"2026-07-05T05:22:55Z"},{"alias_kind":"arxiv_version","alias_value":"2209.10882v1","created_at":"2026-07-05T05:22:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.10882","created_at":"2026-07-05T05:22:55Z"},{"alias_kind":"pith_short_12","alias_value":"GOY6FEQNXBAT","created_at":"2026-07-05T05:22:55Z"},{"alias_kind":"pith_short_16","alias_value":"GOY6FEQNXBATZYK7","created_at":"2026-07-05T05:22:55Z"},{"alias_kind":"pith_short_8","alias_value":"GOY6FEQN","created_at":"2026-07-05T05:22:55Z"}],"graph_snapshots":[{"event_id":"sha256:deb0484827e561b1c75cc75efdd44aa13768e6ba3fd999ce98938696d2b22960","target":"graph","created_at":"2026-07-05T05:22:55Z","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/2209.10882/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Recent developments in time domain astronomy, like the Zwicky Transient Facility, have made possible a daily scan of the entire visible sky, leading to the discovery of hundreds of new transients every night. Among them, 10 to 15 are supernovae (SNe), which have to be classified prior to cosmological use. The Spectral Energy Distribution machine (SEDm), a low resolution Integral Field Spectrograph, has been designed, built, and operated to spectroscopically classify targets detected by the ZTF main camera. The current Pysedm pipeline is limited by contamination when the transient is too close ","authors_text":"J. D. Neill, J. Lezmy, M. Rigault, M. Smith, Y. Copin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2022-09-22T09:32:34Z","title":"HyperGal: hyperspectral scene modeling for supernova typing with the Integral Field Spectrograph SEDmachine"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.10882","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":"sha256:93e1ee5f3f8d22fad44d7d42669d0f5d700dc70bf3a5da68755d67c57654a0b8","target":"record","created_at":"2026-07-05T05:22:55Z","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":"e476313eda69353cc897e2356242f2e500b2393e1a4ec84bcc2d34262c433eb5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2022-09-22T09:32:34Z","title_canon_sha256":"db0a6762f1027f777c3518d49b817fc0932c89e6cf43fa92d9c8aa2ac19fc67a"},"schema_version":"1.0","source":{"id":"2209.10882","kind":"arxiv","version":1}},"canonical_sha256":"33b1e2920db8413ce15fb325cc7cb45bfd8b3e182015ef2965343f4e52c8cde4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"33b1e2920db8413ce15fb325cc7cb45bfd8b3e182015ef2965343f4e52c8cde4","first_computed_at":"2026-07-05T05:22:55.228378Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:22:55.228378Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lDzLtDEbiW1XS8B+66EeosqxLqOAROS2WLEIBhmHGMUfcKLaUuw6hG4qS8bIvosVe7+SLtzeEWLCWreNuRORBw==","signature_status":"signed_v1","signed_at":"2026-07-05T05:22:55.228977Z","signed_message":"canonical_sha256_bytes"},"source_id":"2209.10882","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:93e1ee5f3f8d22fad44d7d42669d0f5d700dc70bf3a5da68755d67c57654a0b8","sha256:deb0484827e561b1c75cc75efdd44aa13768e6ba3fd999ce98938696d2b22960"],"state_sha256":"21c79c97e5c6fe6af5f8769ad376d84f1561ba00eb1523fe1fb82df5a9ad94b4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U7lIwVeDg9tmNPacyWNCTpAPD4M5dt++xOkcFaHDy6z5YAYx7ycAqpfRSWwcg7pYU239F1f/lhjypRu5Akj3BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-18T19:43:39.678124Z","bundle_sha256":"5ff11fff2494568dc960c257d4b2e9e3de264980548b9c3f5de6cd103e1b51de"}}