{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:AHZPOHECCLE2AJ6DVGXJIQD5G7","short_pith_number":"pith:AHZPOHEC","canonical_record":{"source":{"id":"1912.06379","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-12-13T09:57:55Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"2856328ce993e02257fd71da01f20e7f5c6a1000c93d524238e834a5a768e02b","abstract_canon_sha256":"503ce016463a38daeafb11b90d92378a1f947f348ba0b5a9d0b251e21bea7b88"},"schema_version":"1.0"},"canonical_sha256":"01f2f71c8212c9a027c3a9ae94407d37e3c58109d41c2cd7a64876bdb1e902ee","source":{"kind":"arxiv","id":"1912.06379","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1912.06379","created_at":"2026-07-05T00:34:49Z"},{"alias_kind":"arxiv_version","alias_value":"1912.06379v1","created_at":"2026-07-05T00:34:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1912.06379","created_at":"2026-07-05T00:34:49Z"},{"alias_kind":"pith_short_12","alias_value":"AHZPOHECCLE2","created_at":"2026-07-05T00:34:49Z"},{"alias_kind":"pith_short_16","alias_value":"AHZPOHECCLE2AJ6D","created_at":"2026-07-05T00:34:49Z"},{"alias_kind":"pith_short_8","alias_value":"AHZPOHEC","created_at":"2026-07-05T00:34:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:AHZPOHECCLE2AJ6DVGXJIQD5G7","target":"record","payload":{"canonical_record":{"source":{"id":"1912.06379","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-12-13T09:57:55Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"2856328ce993e02257fd71da01f20e7f5c6a1000c93d524238e834a5a768e02b","abstract_canon_sha256":"503ce016463a38daeafb11b90d92378a1f947f348ba0b5a9d0b251e21bea7b88"},"schema_version":"1.0"},"canonical_sha256":"01f2f71c8212c9a027c3a9ae94407d37e3c58109d41c2cd7a64876bdb1e902ee","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:34:49.950436Z","signature_b64":"OHkY0cIk1sqwc6Tq3j1jJfjyGxC7+AmvflS4EIZ+amDr8gUnmdJNinuNEecVzAansNgIeBQ0SlvX/M4keBo9CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"01f2f71c8212c9a027c3a9ae94407d37e3c58109d41c2cd7a64876bdb1e902ee","last_reissued_at":"2026-07-05T00:34:49.949947Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:34:49.949947Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1912.06379","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":"2026-07-05T00:34:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7U56sxcNKbNeuzvt87BtLdiSNOi89fsTj3jHPl3I6DudzkRK0Es1EiXMPiuAESJDcQkrbS78Hu5ixylAsBaHAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T13:15:28.500964Z"},"content_sha256":"38d8a1a0ae65e9ce540a8e0859613b6fbfcfe71e3294259fdd65478ac71f9253","schema_version":"1.0","event_id":"sha256:38d8a1a0ae65e9ce540a8e0859613b6fbfcfe71e3294259fdd65478ac71f9253"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:AHZPOHECCLE2AJ6DVGXJIQD5G7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Updated radio $\\Sigma-D$ relation for Galactic supernova remnants -- II","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.GA","authors_text":"A. \\'Ciprijanovi\\'c, B. Vukoti\\'c, D. Oni\\'c, D. Uro\\v{s}evi\\'c, M. M. Vu\\v{c}eti\\'c","submitted_at":"2019-12-13T09:57:55Z","abstract_excerpt":"In this paper we present the updated empirical radio surface-brightness-to-diameter ($\\Sigma$--$D$) relation for Galactic supernova remnants (SNRs) calibrated using $110$ SNRs with reliable distances. We apply orthogonal fitting procedure and kernel density smoothing in $\\Sigma-D$ plane and compare the results with the latest theoretical $\\Sigma-D$ relations derived from simulations of radio evolution of SNRs. We argue that the best agreement between the empirical and simulated $\\Sigma-D$ relations is achieved if the mixed-morphology SNRs and SNRs of both, low brightness and small diameter, ar"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1912.06379","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/1912.06379/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":"2026-07-05T00:34:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wPYH7cjIwtfvjnKKgtKY1vauplxO/i+d77oWZezakRrdUIXLPI9G2qWZo/KXl6am8jeLzXEkhErlSrqxvBKfDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T13:15:28.501612Z"},"content_sha256":"40ab58a91c16d625f3e6fa7eb61d7e5746ae5d444e34964f03a4fb73af048b1f","schema_version":"1.0","event_id":"sha256:40ab58a91c16d625f3e6fa7eb61d7e5746ae5d444e34964f03a4fb73af048b1f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AHZPOHECCLE2AJ6DVGXJIQD5G7/bundle.json","state_url":"https://pith.science/pith/AHZPOHECCLE2AJ6DVGXJIQD5G7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AHZPOHECCLE2AJ6DVGXJIQD5G7/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":"2026-07-05T13:15:28Z","links":{"resolver":"https://pith.science/pith/AHZPOHECCLE2AJ6DVGXJIQD5G7","bundle":"https://pith.science/pith/AHZPOHECCLE2AJ6DVGXJIQD5G7/bundle.json","state":"https://pith.science/pith/AHZPOHECCLE2AJ6DVGXJIQD5G7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AHZPOHECCLE2AJ6DVGXJIQD5G7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:AHZPOHECCLE2AJ6DVGXJIQD5G7","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":"503ce016463a38daeafb11b90d92378a1f947f348ba0b5a9d0b251e21bea7b88","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-12-13T09:57:55Z","title_canon_sha256":"2856328ce993e02257fd71da01f20e7f5c6a1000c93d524238e834a5a768e02b"},"schema_version":"1.0","source":{"id":"1912.06379","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1912.06379","created_at":"2026-07-05T00:34:49Z"},{"alias_kind":"arxiv_version","alias_value":"1912.06379v1","created_at":"2026-07-05T00:34:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1912.06379","created_at":"2026-07-05T00:34:49Z"},{"alias_kind":"pith_short_12","alias_value":"AHZPOHECCLE2","created_at":"2026-07-05T00:34:49Z"},{"alias_kind":"pith_short_16","alias_value":"AHZPOHECCLE2AJ6D","created_at":"2026-07-05T00:34:49Z"},{"alias_kind":"pith_short_8","alias_value":"AHZPOHEC","created_at":"2026-07-05T00:34:49Z"}],"graph_snapshots":[{"event_id":"sha256:40ab58a91c16d625f3e6fa7eb61d7e5746ae5d444e34964f03a4fb73af048b1f","target":"graph","created_at":"2026-07-05T00:34:49Z","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/1912.06379/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this paper we present the updated empirical radio surface-brightness-to-diameter ($\\Sigma$--$D$) relation for Galactic supernova remnants (SNRs) calibrated using $110$ SNRs with reliable distances. We apply orthogonal fitting procedure and kernel density smoothing in $\\Sigma-D$ plane and compare the results with the latest theoretical $\\Sigma-D$ relations derived from simulations of radio evolution of SNRs. We argue that the best agreement between the empirical and simulated $\\Sigma-D$ relations is achieved if the mixed-morphology SNRs and SNRs of both, low brightness and small diameter, ar","authors_text":"A. \\'Ciprijanovi\\'c, B. Vukoti\\'c, D. Oni\\'c, D. Uro\\v{s}evi\\'c, M. M. Vu\\v{c}eti\\'c","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-12-13T09:57:55Z","title":"Updated radio $\\Sigma-D$ relation for Galactic supernova remnants -- II"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1912.06379","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":"sha256:38d8a1a0ae65e9ce540a8e0859613b6fbfcfe71e3294259fdd65478ac71f9253","target":"record","created_at":"2026-07-05T00:34:49Z","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":"503ce016463a38daeafb11b90d92378a1f947f348ba0b5a9d0b251e21bea7b88","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-12-13T09:57:55Z","title_canon_sha256":"2856328ce993e02257fd71da01f20e7f5c6a1000c93d524238e834a5a768e02b"},"schema_version":"1.0","source":{"id":"1912.06379","kind":"arxiv","version":1}},"canonical_sha256":"01f2f71c8212c9a027c3a9ae94407d37e3c58109d41c2cd7a64876bdb1e902ee","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"01f2f71c8212c9a027c3a9ae94407d37e3c58109d41c2cd7a64876bdb1e902ee","first_computed_at":"2026-07-05T00:34:49.949947Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:34:49.949947Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OHkY0cIk1sqwc6Tq3j1jJfjyGxC7+AmvflS4EIZ+amDr8gUnmdJNinuNEecVzAansNgIeBQ0SlvX/M4keBo9CQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:34:49.950436Z","signed_message":"canonical_sha256_bytes"},"source_id":"1912.06379","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:38d8a1a0ae65e9ce540a8e0859613b6fbfcfe71e3294259fdd65478ac71f9253","sha256:40ab58a91c16d625f3e6fa7eb61d7e5746ae5d444e34964f03a4fb73af048b1f"],"state_sha256":"b3dfb4185ef3d9803167e07935a433e013c07ef79935f8ae03ae48b19341475f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B0xHbTHgbwge/Ylr21eNujDZggUFPNtyQz8v9gEeZQDQcx74c35rqfcdcyq97DFy0t+9zeIr2lh+byqJslP0BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T13:15:28.517462Z","bundle_sha256":"d420d26c8d24f46e4fb863dc405de24ad3ad58c421bf87e05d9ba9de69cfc284"}}