{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:7FSNXPBLPPDL7MU6B3K3S4COVA","short_pith_number":"pith:7FSNXPBL","canonical_record":{"source":{"id":"1210.2781","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-10-09T23:47:17Z","cross_cats_sorted":[],"title_canon_sha256":"44c7a37319e244e22fed122fc4ba9dc0c9a7e184b75493ea945e60334d7dc8a6","abstract_canon_sha256":"a3d1e26ac78c6ca6ff65a132d06b4ac9cd0f11ba003b7f12da31c00cfa321011"},"schema_version":"1.0"},"canonical_sha256":"f964dbbc2b7bc6bfb29e0ed5b9704ea83b4b1c4a8eb28ae82fd1514f03c5fdca","source":{"kind":"arxiv","id":"1210.2781","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.2781","created_at":"2026-05-18T01:54:03Z"},{"alias_kind":"arxiv_version","alias_value":"1210.2781v1","created_at":"2026-05-18T01:54:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.2781","created_at":"2026-05-18T01:54:03Z"},{"alias_kind":"pith_short_12","alias_value":"7FSNXPBLPPDL","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_16","alias_value":"7FSNXPBLPPDL7MU6","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_8","alias_value":"7FSNXPBL","created_at":"2026-05-18T12:26:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:7FSNXPBLPPDL7MU6B3K3S4COVA","target":"record","payload":{"canonical_record":{"source":{"id":"1210.2781","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-10-09T23:47:17Z","cross_cats_sorted":[],"title_canon_sha256":"44c7a37319e244e22fed122fc4ba9dc0c9a7e184b75493ea945e60334d7dc8a6","abstract_canon_sha256":"a3d1e26ac78c6ca6ff65a132d06b4ac9cd0f11ba003b7f12da31c00cfa321011"},"schema_version":"1.0"},"canonical_sha256":"f964dbbc2b7bc6bfb29e0ed5b9704ea83b4b1c4a8eb28ae82fd1514f03c5fdca","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:54:03.699460Z","signature_b64":"WEvk2D0GvljmVUiqsFHvn9DTXthPF8cDNss+qAr1o3vsUjtPFyBQ6HQ9QkpSP0bMP1YO0erOT7jdfMlBAMwSAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f964dbbc2b7bc6bfb29e0ed5b9704ea83b4b1c4a8eb28ae82fd1514f03c5fdca","last_reissued_at":"2026-05-18T01:54:03.698912Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:54:03.698912Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1210.2781","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":"2026-05-18T01:54:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LXrYygnmvwovPs4AwLJs3auJfbLW5nuLsf2kpZ6OC6H82iMC0bM59IHsTDcl4jKfNZHvwgW7nTcOqS8LTWavDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T21:56:13.764711Z"},"content_sha256":"ee705583ec35ecf3f5bc282446908818499877bf60acfc5fbbe225896dbe6dce","schema_version":"1.0","event_id":"sha256:ee705583ec35ecf3f5bc282446908818499877bf60acfc5fbbe225896dbe6dce"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:7FSNXPBLPPDL7MU6B3K3S4COVA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Radio confirmation of Galactic supernova remnant G308.3-1.4","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Y. De Horta, D. Urosevic, E. J. Crawford, F. H. Stootman, J. D. Collier, M. D. Filipovic, N. F. H. Tothill","submitted_at":"2012-10-09T23:47:17Z","abstract_excerpt":"We present radio-continuum observations of the Galactic supernova remnant (SNR) candidate, G308.3-1.4, made with the Australia Telescope Compact Array, Molonglo Observatory Synthesis Telescope and the Parkes radio telescope. Our results combined with Chandra X-ray images confirm that G308.3-1.4 is a bona fide SNR with a shell morphology. The SNR has average diameter of D = 34 +- 19 pc, radio spectral index of alpha = -0.68 +- 0.16 and linear polarisation of 10 +- 1%; We estimate the SNR magnetic field B = 29 uG. Employing a Sigma-D relation, we estimate a distance to G308.3-1.4 of d = 19 +- 11"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.2781","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":"2026-05-18T01:54:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PV1UTUaBScMQ9ewk/5uH9KzODG+Cs+PYITrOMq0HL6gIwoSZCcu1VbVl66tfx/1Izors+K3Ew6R5b43DrCKeCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T21:56:13.765416Z"},"content_sha256":"a39b17c9253d3e181e1f3e11e8ce1d5385383e9a358518303caffa0ae5194248","schema_version":"1.0","event_id":"sha256:a39b17c9253d3e181e1f3e11e8ce1d5385383e9a358518303caffa0ae5194248"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7FSNXPBLPPDL7MU6B3K3S4COVA/bundle.json","state_url":"https://pith.science/pith/7FSNXPBLPPDL7MU6B3K3S4COVA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7FSNXPBLPPDL7MU6B3K3S4COVA/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":"2026-05-30T21:56:13Z","links":{"resolver":"https://pith.science/pith/7FSNXPBLPPDL7MU6B3K3S4COVA","bundle":"https://pith.science/pith/7FSNXPBLPPDL7MU6B3K3S4COVA/bundle.json","state":"https://pith.science/pith/7FSNXPBLPPDL7MU6B3K3S4COVA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7FSNXPBLPPDL7MU6B3K3S4COVA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:7FSNXPBLPPDL7MU6B3K3S4COVA","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":"a3d1e26ac78c6ca6ff65a132d06b4ac9cd0f11ba003b7f12da31c00cfa321011","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-10-09T23:47:17Z","title_canon_sha256":"44c7a37319e244e22fed122fc4ba9dc0c9a7e184b75493ea945e60334d7dc8a6"},"schema_version":"1.0","source":{"id":"1210.2781","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.2781","created_at":"2026-05-18T01:54:03Z"},{"alias_kind":"arxiv_version","alias_value":"1210.2781v1","created_at":"2026-05-18T01:54:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.2781","created_at":"2026-05-18T01:54:03Z"},{"alias_kind":"pith_short_12","alias_value":"7FSNXPBLPPDL","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_16","alias_value":"7FSNXPBLPPDL7MU6","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_8","alias_value":"7FSNXPBL","created_at":"2026-05-18T12:26:56Z"}],"graph_snapshots":[{"event_id":"sha256:a39b17c9253d3e181e1f3e11e8ce1d5385383e9a358518303caffa0ae5194248","target":"graph","created_at":"2026-05-18T01:54:03Z","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 radio-continuum observations of the Galactic supernova remnant (SNR) candidate, G308.3-1.4, made with the Australia Telescope Compact Array, Molonglo Observatory Synthesis Telescope and the Parkes radio telescope. Our results combined with Chandra X-ray images confirm that G308.3-1.4 is a bona fide SNR with a shell morphology. The SNR has average diameter of D = 34 +- 19 pc, radio spectral index of alpha = -0.68 +- 0.16 and linear polarisation of 10 +- 1%; We estimate the SNR magnetic field B = 29 uG. Employing a Sigma-D relation, we estimate a distance to G308.3-1.4 of d = 19 +- 11","authors_text":"A. Y. De Horta, D. Urosevic, E. J. Crawford, F. H. Stootman, J. D. Collier, M. D. Filipovic, N. F. H. Tothill","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-10-09T23:47:17Z","title":"Radio confirmation of Galactic supernova remnant G308.3-1.4"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.2781","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:ee705583ec35ecf3f5bc282446908818499877bf60acfc5fbbe225896dbe6dce","target":"record","created_at":"2026-05-18T01:54:03Z","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":"a3d1e26ac78c6ca6ff65a132d06b4ac9cd0f11ba003b7f12da31c00cfa321011","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-10-09T23:47:17Z","title_canon_sha256":"44c7a37319e244e22fed122fc4ba9dc0c9a7e184b75493ea945e60334d7dc8a6"},"schema_version":"1.0","source":{"id":"1210.2781","kind":"arxiv","version":1}},"canonical_sha256":"f964dbbc2b7bc6bfb29e0ed5b9704ea83b4b1c4a8eb28ae82fd1514f03c5fdca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f964dbbc2b7bc6bfb29e0ed5b9704ea83b4b1c4a8eb28ae82fd1514f03c5fdca","first_computed_at":"2026-05-18T01:54:03.698912Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:54:03.698912Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WEvk2D0GvljmVUiqsFHvn9DTXthPF8cDNss+qAr1o3vsUjtPFyBQ6HQ9QkpSP0bMP1YO0erOT7jdfMlBAMwSAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:54:03.699460Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.2781","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ee705583ec35ecf3f5bc282446908818499877bf60acfc5fbbe225896dbe6dce","sha256:a39b17c9253d3e181e1f3e11e8ce1d5385383e9a358518303caffa0ae5194248"],"state_sha256":"33f04d6d12b45fb11de7278adc103216cd2f96c16b2d89703080313544a770e0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"J6niE6/2B9EO3Qox2N/+MGVvXLUeTfxNLLkBlR+kvDmq8S0reTUp0FFSTeM4OMvar5F/MsT8BYbllFQQ/2KpCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T21:56:13.768803Z","bundle_sha256":"17fbabe55ff9a5bce8dbf6df71b807717b0417de73c00081fd13c9918d51de2f"}}