{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:SD4WBJI2TAYYO6UCXC5K4JRGOQ","short_pith_number":"pith:SD4WBJI2","canonical_record":{"source":{"id":"1505.01852","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-05-07T20:00:49Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"a7947c74b74a6d776f68d347348bf0c3c162d09be47bfd573385a2608716f44d","abstract_canon_sha256":"64379a81400c1578c1eda8e5c714a3790ab7a5ff8b57d321986193a5f928e66f"},"schema_version":"1.0"},"canonical_sha256":"90f960a51a9831877a82b8baae2626743a616ede6af2b3c566b59d21d800de60","source":{"kind":"arxiv","id":"1505.01852","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.01852","created_at":"2026-05-18T02:16:38Z"},{"alias_kind":"arxiv_version","alias_value":"1505.01852v1","created_at":"2026-05-18T02:16:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.01852","created_at":"2026-05-18T02:16:38Z"},{"alias_kind":"pith_short_12","alias_value":"SD4WBJI2TAYY","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"SD4WBJI2TAYYO6UC","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"SD4WBJI2","created_at":"2026-05-18T12:29:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:SD4WBJI2TAYYO6UCXC5K4JRGOQ","target":"record","payload":{"canonical_record":{"source":{"id":"1505.01852","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-05-07T20:00:49Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"a7947c74b74a6d776f68d347348bf0c3c162d09be47bfd573385a2608716f44d","abstract_canon_sha256":"64379a81400c1578c1eda8e5c714a3790ab7a5ff8b57d321986193a5f928e66f"},"schema_version":"1.0"},"canonical_sha256":"90f960a51a9831877a82b8baae2626743a616ede6af2b3c566b59d21d800de60","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:16:38.709397Z","signature_b64":"cymHQvv+I4zVcYXHfJ1cnwJxmVV1YAvf8XenZC2Y9NLLZpS9MqtkT7jdfsFAwjQO4Oj+OXPydM6tp/Q4oubbDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"90f960a51a9831877a82b8baae2626743a616ede6af2b3c566b59d21d800de60","last_reissued_at":"2026-05-18T02:16:38.708677Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:16:38.708677Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1505.01852","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":"2026-05-18T02:16:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O/+Xs5tOMFVd90vOdLlHaQnKM9aR8zZXAgoC7edBsOQqzTdWNXkaXovbk6LU6H4fvPW0WqjqKwdEHciGUCOZBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T11:05:22.971779Z"},"content_sha256":"b9f9c142e15e36657c24c8d0e85043c2307faab2d0d7bc16e0fcf41a33857199","schema_version":"1.0","event_id":"sha256:b9f9c142e15e36657c24c8d0e85043c2307faab2d0d7bc16e0fcf41a33857199"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:SD4WBJI2TAYYO6UCXC5K4JRGOQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"SN 2011A: an low-luminosity interacting transient, with a double plateau and strong sodium absorption","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"C. Inserra, C.P. Guti\\'errez, E. Kankare, F. Bufano, F. F\\\"orster, F. Taddia, G. Folatelli, G. Pignata, J. P. Anderson, L. Tomasella, M. D. Stritzinger, M. Hamuy, N. Elias-Rosa, N. Morrell, P. Lira, R. Kotak, S. Benetti, S. Gonz\\'alez-Gait\\'an, T. de Jaeger","submitted_at":"2015-05-07T20:00:49Z","abstract_excerpt":"We present optical photometry and spectroscopy of the optical transient SN 2011A. Our data spans 140 days after discovery including $BVRIu'g'r'i'z'$ photometry and 11 epochs of optical spectroscopy. Originally classified as a type IIn supernova (SN IIn) due to the presence of narrow H$\\alpha$ emission, this object shows exceptional characteristics. Firstly, the light curve shows a double plateau; a property only observed before in the impostor SN 1997bs. Secondly, SN 2011A has a very low luminosity ($M_{V}=-15.72$), placing it between normal luminous SNe IIn and SN impostors. Thirdly, SN 2011A"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.01852","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":""},"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":"2026-05-18T02:16:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XOluE1x4EUVz3Kex/PeRJbFVSklqBuBUsiO+uMBGTO2bN6GcZth7yloeb8eGO1+PMJ7pnt4UhLhCEChjrOgvAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T11:05:22.972141Z"},"content_sha256":"5c7fe5559293426ba1cdb2c489765604075b97d679be101a1e235dd06ac86cc4","schema_version":"1.0","event_id":"sha256:5c7fe5559293426ba1cdb2c489765604075b97d679be101a1e235dd06ac86cc4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SD4WBJI2TAYYO6UCXC5K4JRGOQ/bundle.json","state_url":"https://pith.science/pith/SD4WBJI2TAYYO6UCXC5K4JRGOQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SD4WBJI2TAYYO6UCXC5K4JRGOQ/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":"2026-05-30T11:05:22Z","links":{"resolver":"https://pith.science/pith/SD4WBJI2TAYYO6UCXC5K4JRGOQ","bundle":"https://pith.science/pith/SD4WBJI2TAYYO6UCXC5K4JRGOQ/bundle.json","state":"https://pith.science/pith/SD4WBJI2TAYYO6UCXC5K4JRGOQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SD4WBJI2TAYYO6UCXC5K4JRGOQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:SD4WBJI2TAYYO6UCXC5K4JRGOQ","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":"64379a81400c1578c1eda8e5c714a3790ab7a5ff8b57d321986193a5f928e66f","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-05-07T20:00:49Z","title_canon_sha256":"a7947c74b74a6d776f68d347348bf0c3c162d09be47bfd573385a2608716f44d"},"schema_version":"1.0","source":{"id":"1505.01852","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.01852","created_at":"2026-05-18T02:16:38Z"},{"alias_kind":"arxiv_version","alias_value":"1505.01852v1","created_at":"2026-05-18T02:16:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.01852","created_at":"2026-05-18T02:16:38Z"},{"alias_kind":"pith_short_12","alias_value":"SD4WBJI2TAYY","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"SD4WBJI2TAYYO6UC","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"SD4WBJI2","created_at":"2026-05-18T12:29:39Z"}],"graph_snapshots":[{"event_id":"sha256:5c7fe5559293426ba1cdb2c489765604075b97d679be101a1e235dd06ac86cc4","target":"graph","created_at":"2026-05-18T02:16:38Z","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"},"paper":{"abstract_excerpt":"We present optical photometry and spectroscopy of the optical transient SN 2011A. Our data spans 140 days after discovery including $BVRIu'g'r'i'z'$ photometry and 11 epochs of optical spectroscopy. Originally classified as a type IIn supernova (SN IIn) due to the presence of narrow H$\\alpha$ emission, this object shows exceptional characteristics. Firstly, the light curve shows a double plateau; a property only observed before in the impostor SN 1997bs. Secondly, SN 2011A has a very low luminosity ($M_{V}=-15.72$), placing it between normal luminous SNe IIn and SN impostors. Thirdly, SN 2011A","authors_text":"C. Inserra, C.P. Guti\\'errez, E. Kankare, F. Bufano, F. F\\\"orster, F. Taddia, G. Folatelli, G. Pignata, J. P. Anderson, L. Tomasella, M. D. Stritzinger, M. Hamuy, N. Elias-Rosa, N. Morrell, P. Lira, R. Kotak, S. Benetti, S. Gonz\\'alez-Gait\\'an, T. de Jaeger","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-05-07T20:00:49Z","title":"SN 2011A: an low-luminosity interacting transient, with a double plateau and strong sodium absorption"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.01852","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:b9f9c142e15e36657c24c8d0e85043c2307faab2d0d7bc16e0fcf41a33857199","target":"record","created_at":"2026-05-18T02:16:38Z","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":"64379a81400c1578c1eda8e5c714a3790ab7a5ff8b57d321986193a5f928e66f","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-05-07T20:00:49Z","title_canon_sha256":"a7947c74b74a6d776f68d347348bf0c3c162d09be47bfd573385a2608716f44d"},"schema_version":"1.0","source":{"id":"1505.01852","kind":"arxiv","version":1}},"canonical_sha256":"90f960a51a9831877a82b8baae2626743a616ede6af2b3c566b59d21d800de60","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"90f960a51a9831877a82b8baae2626743a616ede6af2b3c566b59d21d800de60","first_computed_at":"2026-05-18T02:16:38.708677Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:16:38.708677Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cymHQvv+I4zVcYXHfJ1cnwJxmVV1YAvf8XenZC2Y9NLLZpS9MqtkT7jdfsFAwjQO4Oj+OXPydM6tp/Q4oubbDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:16:38.709397Z","signed_message":"canonical_sha256_bytes"},"source_id":"1505.01852","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b9f9c142e15e36657c24c8d0e85043c2307faab2d0d7bc16e0fcf41a33857199","sha256:5c7fe5559293426ba1cdb2c489765604075b97d679be101a1e235dd06ac86cc4"],"state_sha256":"1c60ae5f249e02e569d1c91247e5676df17717ad8d825fd6049ab0d677ec0acb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"66iUgkT6MRkSVQhtT+ccC6PWvFUQnaGup5oMt2CQJR3xhoQLfwxixWE09DapsUQD7V9nrDXLAkLHzLEYUjADBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T11:05:22.974492Z","bundle_sha256":"12916a9de208a364c20a2ad6da517f16be8caaf153f673d140f5692dca1c05a3"}}