{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:QLACL3OGKCEGJRB6EWUHLVEOV6","short_pith_number":"pith:QLACL3OG","canonical_record":{"source":{"id":"1712.07405","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-12-20T10:39:57Z","cross_cats_sorted":[],"title_canon_sha256":"bf5508c2ecb104fd0dc928dd78d38e065622be7c1f09971d0787c1b366c634a5","abstract_canon_sha256":"f2ba045d39b7ae5c329cdd2df8ae10ca0af725d8fb138f386b0039177240b7d1"},"schema_version":"1.0"},"canonical_sha256":"82c025edc6508864c43e25a875d48eafbb77e2618b0a0b7e948157afde3b0e3e","source":{"kind":"arxiv","id":"1712.07405","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.07405","created_at":"2026-05-18T00:25:15Z"},{"alias_kind":"arxiv_version","alias_value":"1712.07405v2","created_at":"2026-05-18T00:25:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.07405","created_at":"2026-05-18T00:25:15Z"},{"alias_kind":"pith_short_12","alias_value":"QLACL3OGKCEG","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"QLACL3OGKCEGJRB6","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"QLACL3OG","created_at":"2026-05-18T12:31:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:QLACL3OGKCEGJRB6EWUHLVEOV6","target":"record","payload":{"canonical_record":{"source":{"id":"1712.07405","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-12-20T10:39:57Z","cross_cats_sorted":[],"title_canon_sha256":"bf5508c2ecb104fd0dc928dd78d38e065622be7c1f09971d0787c1b366c634a5","abstract_canon_sha256":"f2ba045d39b7ae5c329cdd2df8ae10ca0af725d8fb138f386b0039177240b7d1"},"schema_version":"1.0"},"canonical_sha256":"82c025edc6508864c43e25a875d48eafbb77e2618b0a0b7e948157afde3b0e3e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:25:15.591470Z","signature_b64":"bQktELaIi/QdUKY3jhS8rjARGTKcu9ts4Z3z+1flVDW16FRzKOKjGEfVW3j/vWN2XKVCHSJwp7vxVzRolhiDCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"82c025edc6508864c43e25a875d48eafbb77e2618b0a0b7e948157afde3b0e3e","last_reissued_at":"2026-05-18T00:25:15.590881Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:25:15.590881Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1712.07405","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:25:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FOmCXB3xzwpKEo3v5mmsPYG0i+S58yd36EiBDnEF5HfDjuK06T1kI2ClVGKFSTXs+JFzkQImq+5t5G06h+NQAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T18:53:44.100139Z"},"content_sha256":"8a7e16d80e585082a7e201b5d7d26fb84caec5bd1fe417c62c3a023b364d8cd7","schema_version":"1.0","event_id":"sha256:8a7e16d80e585082a7e201b5d7d26fb84caec5bd1fe417c62c3a023b364d8cd7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:QLACL3OGKCEGJRB6EWUHLVEOV6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Circumstellar interaction in supernovae in dense environments - an observational perspective","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Poonam Chandra","submitted_at":"2017-12-20T10:39:57Z","abstract_excerpt":"In a supernova explosion, the ejecta interacting with the surrounding circumstellar medium (CSM) give rise to variety of radiation. Since CSM is created from the mass lost from the progenitor star, it carries footprints of the late time evolution of the star. This is one of the unique ways to get a handle on the nature of the progenitor star system. Here, I will focus mainly on the supernovae (SNe) exploding in dense environments, a.k.a. Type IIn SNe. Radio and X-ray emission from this class of SNe have revealed important modifications in their radiation properties, due to the presence of high"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.07405","kind":"arxiv","version":2},"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":"2026-05-18T00:25:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cxxtSNu48mT0EJYjc7xuArFDNTxQI9vCNQPJfvyAL3eJmaeeSdBnJFvj4dIFUf7zRCp8F7WIB/E4mmqApcOQDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T18:53:44.100503Z"},"content_sha256":"62c9ea3f9018cd1809edb4ba160849cee5b41197291842e0bb68c5bb8627d215","schema_version":"1.0","event_id":"sha256:62c9ea3f9018cd1809edb4ba160849cee5b41197291842e0bb68c5bb8627d215"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QLACL3OGKCEGJRB6EWUHLVEOV6/bundle.json","state_url":"https://pith.science/pith/QLACL3OGKCEGJRB6EWUHLVEOV6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QLACL3OGKCEGJRB6EWUHLVEOV6/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":"2026-05-20T18:53:44Z","links":{"resolver":"https://pith.science/pith/QLACL3OGKCEGJRB6EWUHLVEOV6","bundle":"https://pith.science/pith/QLACL3OGKCEGJRB6EWUHLVEOV6/bundle.json","state":"https://pith.science/pith/QLACL3OGKCEGJRB6EWUHLVEOV6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QLACL3OGKCEGJRB6EWUHLVEOV6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:QLACL3OGKCEGJRB6EWUHLVEOV6","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":"f2ba045d39b7ae5c329cdd2df8ae10ca0af725d8fb138f386b0039177240b7d1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-12-20T10:39:57Z","title_canon_sha256":"bf5508c2ecb104fd0dc928dd78d38e065622be7c1f09971d0787c1b366c634a5"},"schema_version":"1.0","source":{"id":"1712.07405","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.07405","created_at":"2026-05-18T00:25:15Z"},{"alias_kind":"arxiv_version","alias_value":"1712.07405v2","created_at":"2026-05-18T00:25:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.07405","created_at":"2026-05-18T00:25:15Z"},{"alias_kind":"pith_short_12","alias_value":"QLACL3OGKCEG","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"QLACL3OGKCEGJRB6","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"QLACL3OG","created_at":"2026-05-18T12:31:39Z"}],"graph_snapshots":[{"event_id":"sha256:62c9ea3f9018cd1809edb4ba160849cee5b41197291842e0bb68c5bb8627d215","target":"graph","created_at":"2026-05-18T00:25:15Z","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":"In a supernova explosion, the ejecta interacting with the surrounding circumstellar medium (CSM) give rise to variety of radiation. Since CSM is created from the mass lost from the progenitor star, it carries footprints of the late time evolution of the star. This is one of the unique ways to get a handle on the nature of the progenitor star system. Here, I will focus mainly on the supernovae (SNe) exploding in dense environments, a.k.a. Type IIn SNe. Radio and X-ray emission from this class of SNe have revealed important modifications in their radiation properties, due to the presence of high","authors_text":"Poonam Chandra","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-12-20T10:39:57Z","title":"Circumstellar interaction in supernovae in dense environments - an observational perspective"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.07405","kind":"arxiv","version":2},"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":"sha256:8a7e16d80e585082a7e201b5d7d26fb84caec5bd1fe417c62c3a023b364d8cd7","target":"record","created_at":"2026-05-18T00:25:15Z","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":"f2ba045d39b7ae5c329cdd2df8ae10ca0af725d8fb138f386b0039177240b7d1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-12-20T10:39:57Z","title_canon_sha256":"bf5508c2ecb104fd0dc928dd78d38e065622be7c1f09971d0787c1b366c634a5"},"schema_version":"1.0","source":{"id":"1712.07405","kind":"arxiv","version":2}},"canonical_sha256":"82c025edc6508864c43e25a875d48eafbb77e2618b0a0b7e948157afde3b0e3e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"82c025edc6508864c43e25a875d48eafbb77e2618b0a0b7e948157afde3b0e3e","first_computed_at":"2026-05-18T00:25:15.590881Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:25:15.590881Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bQktELaIi/QdUKY3jhS8rjARGTKcu9ts4Z3z+1flVDW16FRzKOKjGEfVW3j/vWN2XKVCHSJwp7vxVzRolhiDCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:25:15.591470Z","signed_message":"canonical_sha256_bytes"},"source_id":"1712.07405","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8a7e16d80e585082a7e201b5d7d26fb84caec5bd1fe417c62c3a023b364d8cd7","sha256:62c9ea3f9018cd1809edb4ba160849cee5b41197291842e0bb68c5bb8627d215"],"state_sha256":"779a9b0e3a18ddbaaa1d0c324347bcbd1b5914569442b3bd4ddf0285ece6cc4f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"V+RlOPrwK3y2a1ssUp5sjcHVQDnKoLWRLs5hghTIUVCgIIFlJ4nrT2/bzIc1YNC9WVXZdhCaMepI0dsM5Q6GBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T18:53:44.103588Z","bundle_sha256":"f1055cf1647d59f9f8dfe1015fb9d9560d844036bdc653104a713c80e31e5fef"}}