{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:VRN5YKEXNFTEO4OF2OCPDNOZBB","short_pith_number":"pith:VRN5YKEX","canonical_record":{"source":{"id":"2007.07650","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-07-15T12:19:15Z","cross_cats_sorted":["astro-ph.HE","astro-ph.IM"],"title_canon_sha256":"014eb5ad17b4e6da9da0e7308f7eb9216e4a162a6c63b631202c04466cccf045","abstract_canon_sha256":"a6f38986cb5d5132edb24348c5ed394940bb1b1f6472afe970229bc966d89163"},"schema_version":"1.0"},"canonical_sha256":"ac5bdc289769664771c5d384f1b5d90841f48005b35dd9ead3d0cb8f8894b562","source":{"kind":"arxiv","id":"2007.07650","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.07650","created_at":"2026-07-05T01:19:30Z"},{"alias_kind":"arxiv_version","alias_value":"2007.07650v1","created_at":"2026-07-05T01:19:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.07650","created_at":"2026-07-05T01:19:30Z"},{"alias_kind":"pith_short_12","alias_value":"VRN5YKEXNFTE","created_at":"2026-07-05T01:19:30Z"},{"alias_kind":"pith_short_16","alias_value":"VRN5YKEXNFTEO4OF","created_at":"2026-07-05T01:19:30Z"},{"alias_kind":"pith_short_8","alias_value":"VRN5YKEX","created_at":"2026-07-05T01:19:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:VRN5YKEXNFTEO4OF2OCPDNOZBB","target":"record","payload":{"canonical_record":{"source":{"id":"2007.07650","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-07-15T12:19:15Z","cross_cats_sorted":["astro-ph.HE","astro-ph.IM"],"title_canon_sha256":"014eb5ad17b4e6da9da0e7308f7eb9216e4a162a6c63b631202c04466cccf045","abstract_canon_sha256":"a6f38986cb5d5132edb24348c5ed394940bb1b1f6472afe970229bc966d89163"},"schema_version":"1.0"},"canonical_sha256":"ac5bdc289769664771c5d384f1b5d90841f48005b35dd9ead3d0cb8f8894b562","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:19:30.825526Z","signature_b64":"Y6G5JzlPRjuooGZPtOPRye7P/mEIm+kmqhwvV6zm8iLBhiPqUEmAsRLEY/NOcR3af6Lljo4f3esDVoXnmpoNDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ac5bdc289769664771c5d384f1b5d90841f48005b35dd9ead3d0cb8f8894b562","last_reissued_at":"2026-07-05T01:19:30.825127Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:19:30.825127Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2007.07650","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":"2026-07-05T01:19:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CVqg1ke4Y7iDL4JytlJQQqvd5fwLgY7qbFywxpYv//N3yhiAmOZ0/xmtJlmEbw8XG8oIeSYbaVwG4w5RQZx2DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T16:26:23.993260Z"},"content_sha256":"a2d1897efe3b63089a875987193e54267cf2a0ea2c476a4e13829d802862bf3b","schema_version":"1.0","event_id":"sha256:a2d1897efe3b63089a875987193e54267cf2a0ea2c476a4e13829d802862bf3b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:VRN5YKEXNFTEO4OF2OCPDNOZBB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A low-luminosity core-collapse supernova very similar to SN 2005cs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","astro-ph.IM"],"primary_cat":"astro-ph.SR","authors_text":"Andrea P. Nagy, Barna I. B\\'ir\\'o, J\\'ozsef Vink\\'o, L\\'aszl\\'o Moln\\'ar, Levente Kriskovics, Tam\\'as Borkovits, Tibor Heged\\\"us, Zolt\\'an J\\\"ager Jr., Zolt\\'an J\\\"ager Sr.","submitted_at":"2020-07-15T12:19:15Z","abstract_excerpt":"We present observations and analysis of PSN J17292918+7542390, a low-luminosity Type II-P supernova (LL SN IIP). The observed sample of such events is still low, and their nature is still under debate. Such supernovae are similar to SN 2005cs, a well-observed low-luminosity Type II-P event, having low expansion velocities, and small ejected $^{56}$Ni mass. We have developed a robust and relatively fast Monte-Carlo code that fits semi-analytic models to light curves of core collapse supernovae. This allows the estimation of the most important physical parameters, like the radius of the progenit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.07650","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/2007.07650/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":"2026-07-05T01:19:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TY1pKFbV1WH34PyPLligJTGUQkFC3AmyI5Rqng9Ux/3+aCWH0ajdiuMA6mJlRLcY+/tUcwnGeXy8nEa6ABO3Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T16:26:23.993739Z"},"content_sha256":"19517ca0cf43249909f0ac2b72d2fb3d486fbd83b7c269bbc83a724c6bfce39f","schema_version":"1.0","event_id":"sha256:19517ca0cf43249909f0ac2b72d2fb3d486fbd83b7c269bbc83a724c6bfce39f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VRN5YKEXNFTEO4OF2OCPDNOZBB/bundle.json","state_url":"https://pith.science/pith/VRN5YKEXNFTEO4OF2OCPDNOZBB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VRN5YKEXNFTEO4OF2OCPDNOZBB/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":"2026-08-01T16:26:23Z","links":{"resolver":"https://pith.science/pith/VRN5YKEXNFTEO4OF2OCPDNOZBB","bundle":"https://pith.science/pith/VRN5YKEXNFTEO4OF2OCPDNOZBB/bundle.json","state":"https://pith.science/pith/VRN5YKEXNFTEO4OF2OCPDNOZBB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VRN5YKEXNFTEO4OF2OCPDNOZBB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:VRN5YKEXNFTEO4OF2OCPDNOZBB","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":"a6f38986cb5d5132edb24348c5ed394940bb1b1f6472afe970229bc966d89163","cross_cats_sorted":["astro-ph.HE","astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-07-15T12:19:15Z","title_canon_sha256":"014eb5ad17b4e6da9da0e7308f7eb9216e4a162a6c63b631202c04466cccf045"},"schema_version":"1.0","source":{"id":"2007.07650","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.07650","created_at":"2026-07-05T01:19:30Z"},{"alias_kind":"arxiv_version","alias_value":"2007.07650v1","created_at":"2026-07-05T01:19:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.07650","created_at":"2026-07-05T01:19:30Z"},{"alias_kind":"pith_short_12","alias_value":"VRN5YKEXNFTE","created_at":"2026-07-05T01:19:30Z"},{"alias_kind":"pith_short_16","alias_value":"VRN5YKEXNFTEO4OF","created_at":"2026-07-05T01:19:30Z"},{"alias_kind":"pith_short_8","alias_value":"VRN5YKEX","created_at":"2026-07-05T01:19:30Z"}],"graph_snapshots":[{"event_id":"sha256:19517ca0cf43249909f0ac2b72d2fb3d486fbd83b7c269bbc83a724c6bfce39f","target":"graph","created_at":"2026-07-05T01:19:30Z","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/2007.07650/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present observations and analysis of PSN J17292918+7542390, a low-luminosity Type II-P supernova (LL SN IIP). The observed sample of such events is still low, and their nature is still under debate. Such supernovae are similar to SN 2005cs, a well-observed low-luminosity Type II-P event, having low expansion velocities, and small ejected $^{56}$Ni mass. We have developed a robust and relatively fast Monte-Carlo code that fits semi-analytic models to light curves of core collapse supernovae. This allows the estimation of the most important physical parameters, like the radius of the progenit","authors_text":"Andrea P. Nagy, Barna I. B\\'ir\\'o, J\\'ozsef Vink\\'o, L\\'aszl\\'o Moln\\'ar, Levente Kriskovics, Tam\\'as Borkovits, Tibor Heged\\\"us, Zolt\\'an J\\\"ager Jr., Zolt\\'an J\\\"ager Sr.","cross_cats":["astro-ph.HE","astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-07-15T12:19:15Z","title":"A low-luminosity core-collapse supernova very similar to SN 2005cs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.07650","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:a2d1897efe3b63089a875987193e54267cf2a0ea2c476a4e13829d802862bf3b","target":"record","created_at":"2026-07-05T01:19:30Z","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":"a6f38986cb5d5132edb24348c5ed394940bb1b1f6472afe970229bc966d89163","cross_cats_sorted":["astro-ph.HE","astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-07-15T12:19:15Z","title_canon_sha256":"014eb5ad17b4e6da9da0e7308f7eb9216e4a162a6c63b631202c04466cccf045"},"schema_version":"1.0","source":{"id":"2007.07650","kind":"arxiv","version":1}},"canonical_sha256":"ac5bdc289769664771c5d384f1b5d90841f48005b35dd9ead3d0cb8f8894b562","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ac5bdc289769664771c5d384f1b5d90841f48005b35dd9ead3d0cb8f8894b562","first_computed_at":"2026-07-05T01:19:30.825127Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:19:30.825127Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Y6G5JzlPRjuooGZPtOPRye7P/mEIm+kmqhwvV6zm8iLBhiPqUEmAsRLEY/NOcR3af6Lljo4f3esDVoXnmpoNDg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:19:30.825526Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.07650","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a2d1897efe3b63089a875987193e54267cf2a0ea2c476a4e13829d802862bf3b","sha256:19517ca0cf43249909f0ac2b72d2fb3d486fbd83b7c269bbc83a724c6bfce39f"],"state_sha256":"7bf504655a7afa840b5bd082845b2ec48eb639aec357a1f3bba02e4476511d6a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S8DvbbFn0EArwzyLrGj/zA0zIVCTLFHQwI37bWtOWvTt4dXg5/sLTRyVQnjGuISLPd0ie6hdeKCMOvQ0oRsmCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-01T16:26:23.997921Z","bundle_sha256":"f2d39e200aca29ab38f109fe4a1f7028dd0cb4fb1134dacf014a991f04665340"}}