{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:5KVKTB5TLDP7WFUCW27IHGWT5E","short_pith_number":"pith:5KVKTB5T","canonical_record":{"source":{"id":"1112.0247","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-12-01T17:21:48Z","cross_cats_sorted":[],"title_canon_sha256":"d9c070544f60d59971df12db24f19c703bf93d7db140cb1ce37a8ef091c4d5ca","abstract_canon_sha256":"3faebc12dc9ccf9a609c3575baec32c97568b6e853b4a006bcffc99932e7c8da"},"schema_version":"1.0"},"canonical_sha256":"eaaaa987b358dffb1682b6be839ad3e915631bd61abdceab5a17808569a3a9f1","source":{"kind":"arxiv","id":"1112.0247","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.0247","created_at":"2026-05-18T01:59:20Z"},{"alias_kind":"arxiv_version","alias_value":"1112.0247v1","created_at":"2026-05-18T01:59:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.0247","created_at":"2026-05-18T01:59:20Z"},{"alias_kind":"pith_short_12","alias_value":"5KVKTB5TLDP7","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"5KVKTB5TLDP7WFUC","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"5KVKTB5T","created_at":"2026-05-18T12:26:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:5KVKTB5TLDP7WFUCW27IHGWT5E","target":"record","payload":{"canonical_record":{"source":{"id":"1112.0247","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-12-01T17:21:48Z","cross_cats_sorted":[],"title_canon_sha256":"d9c070544f60d59971df12db24f19c703bf93d7db140cb1ce37a8ef091c4d5ca","abstract_canon_sha256":"3faebc12dc9ccf9a609c3575baec32c97568b6e853b4a006bcffc99932e7c8da"},"schema_version":"1.0"},"canonical_sha256":"eaaaa987b358dffb1682b6be839ad3e915631bd61abdceab5a17808569a3a9f1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:59:20.362574Z","signature_b64":"wLRBqlv5A4L05PAiOJz4he0tWu5FKRufLYpWnWxNyZ2b9FCY6E2GdTzyRgp9Cc+ppue19c/1Wmw/Lm9ShIfTBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eaaaa987b358dffb1682b6be839ad3e915631bd61abdceab5a17808569a3a9f1","last_reissued_at":"2026-05-18T01:59:20.361880Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:59:20.361880Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1112.0247","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":"2026-05-18T01:59:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3ttbptDT8ELk6rF+JMlFt/k3I4SrMwMwHUJb8HHXahjxwgZW2gN/VplwrjTIax81aYexWScVBy6CkXtHHxURBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T09:31:28.335407Z"},"content_sha256":"415b506906951939901438792979266799b52b056a6d2dfc0df74a5ed2f9b43d","schema_version":"1.0","event_id":"sha256:415b506906951939901438792979266799b52b056a6d2dfc0df74a5ed2f9b43d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:5KVKTB5TLDP7WFUCW27IHGWT5E","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Multi-epoch high-resolution spectroscopy of SN2011fe - Linking the progenitor to its environment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Goobar, A. Harutyunyan, A. Pastorello, F. Patat, J. Sollerman, L. Palaversa, L. Tomasella, M. A. Cordiner, N. L. J. Cox, R. I. Anderson, R. Kotak, S. Benetti, V. Stanishev","submitted_at":"2011-12-01T17:21:48Z","abstract_excerpt":"This study attempts to establish a link between the reasonably well known nature of the progenitor of SN2011fe and its surrounding environment. This is done with the aim of enabling the identification of similar systems in the vast majority of the cases, when distance and epoch of discovery do not allow a direct approach. To study the circumstellar environment of SN2011fe we have obtained high-resolution spectroscopy of SN2011fe on 12 epochs, from 8 to 86 days after the estimated date of explosion, targeting in particular at the time evolution of CaII and NaI. Three main absorption systems are"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.0247","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":"2026-05-18T01:59:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z1RGtVqKFs8KIQApwLlDDcG2VgjoqvVt3xDjJuYWVUjZP9EXVFHoMijf8cyHrWSgXxzhtylbW18T7MzfIDGVBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T09:31:28.335757Z"},"content_sha256":"e0ece78a4765825840427975543e5e5fd6753e84918c5d6c30cb6c2ab0e5eef0","schema_version":"1.0","event_id":"sha256:e0ece78a4765825840427975543e5e5fd6753e84918c5d6c30cb6c2ab0e5eef0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5KVKTB5TLDP7WFUCW27IHGWT5E/bundle.json","state_url":"https://pith.science/pith/5KVKTB5TLDP7WFUCW27IHGWT5E/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5KVKTB5TLDP7WFUCW27IHGWT5E/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":"2026-06-03T09:31:28Z","links":{"resolver":"https://pith.science/pith/5KVKTB5TLDP7WFUCW27IHGWT5E","bundle":"https://pith.science/pith/5KVKTB5TLDP7WFUCW27IHGWT5E/bundle.json","state":"https://pith.science/pith/5KVKTB5TLDP7WFUCW27IHGWT5E/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5KVKTB5TLDP7WFUCW27IHGWT5E/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:5KVKTB5TLDP7WFUCW27IHGWT5E","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":"3faebc12dc9ccf9a609c3575baec32c97568b6e853b4a006bcffc99932e7c8da","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-12-01T17:21:48Z","title_canon_sha256":"d9c070544f60d59971df12db24f19c703bf93d7db140cb1ce37a8ef091c4d5ca"},"schema_version":"1.0","source":{"id":"1112.0247","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.0247","created_at":"2026-05-18T01:59:20Z"},{"alias_kind":"arxiv_version","alias_value":"1112.0247v1","created_at":"2026-05-18T01:59:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.0247","created_at":"2026-05-18T01:59:20Z"},{"alias_kind":"pith_short_12","alias_value":"5KVKTB5TLDP7","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"5KVKTB5TLDP7WFUC","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"5KVKTB5T","created_at":"2026-05-18T12:26:20Z"}],"graph_snapshots":[{"event_id":"sha256:e0ece78a4765825840427975543e5e5fd6753e84918c5d6c30cb6c2ab0e5eef0","target":"graph","created_at":"2026-05-18T01:59:20Z","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":"This study attempts to establish a link between the reasonably well known nature of the progenitor of SN2011fe and its surrounding environment. This is done with the aim of enabling the identification of similar systems in the vast majority of the cases, when distance and epoch of discovery do not allow a direct approach. To study the circumstellar environment of SN2011fe we have obtained high-resolution spectroscopy of SN2011fe on 12 epochs, from 8 to 86 days after the estimated date of explosion, targeting in particular at the time evolution of CaII and NaI. Three main absorption systems are","authors_text":"A. Goobar, A. Harutyunyan, A. Pastorello, F. Patat, J. Sollerman, L. Palaversa, L. Tomasella, M. A. Cordiner, N. L. J. Cox, R. I. Anderson, R. Kotak, S. Benetti, V. Stanishev","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-12-01T17:21:48Z","title":"Multi-epoch high-resolution spectroscopy of SN2011fe - Linking the progenitor to its environment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.0247","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":"sha256:415b506906951939901438792979266799b52b056a6d2dfc0df74a5ed2f9b43d","target":"record","created_at":"2026-05-18T01:59:20Z","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":"3faebc12dc9ccf9a609c3575baec32c97568b6e853b4a006bcffc99932e7c8da","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-12-01T17:21:48Z","title_canon_sha256":"d9c070544f60d59971df12db24f19c703bf93d7db140cb1ce37a8ef091c4d5ca"},"schema_version":"1.0","source":{"id":"1112.0247","kind":"arxiv","version":1}},"canonical_sha256":"eaaaa987b358dffb1682b6be839ad3e915631bd61abdceab5a17808569a3a9f1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eaaaa987b358dffb1682b6be839ad3e915631bd61abdceab5a17808569a3a9f1","first_computed_at":"2026-05-18T01:59:20.361880Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:20.361880Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wLRBqlv5A4L05PAiOJz4he0tWu5FKRufLYpWnWxNyZ2b9FCY6E2GdTzyRgp9Cc+ppue19c/1Wmw/Lm9ShIfTBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:20.362574Z","signed_message":"canonical_sha256_bytes"},"source_id":"1112.0247","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:415b506906951939901438792979266799b52b056a6d2dfc0df74a5ed2f9b43d","sha256:e0ece78a4765825840427975543e5e5fd6753e84918c5d6c30cb6c2ab0e5eef0"],"state_sha256":"775555ec286b8a8375db03b38d181df7442386b158b8e9d86bf68900fdc71b5d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B4mIy8W+RdZ17fse/0YjN/7bCQagrvL5r8HiTBm6UsPVpluqJ58fn6fKLHemMJSWe1eXvMxp/k+E3qv2II/SDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T09:31:28.337632Z","bundle_sha256":"fea0b0842ec4b6ed7dca6908346b1666d3182642a9f502214bc8514c5c47084d"}}