{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:DMYSIV7VGACET4Y32O5RMUQ3MG","short_pith_number":"pith:DMYSIV7V","canonical_record":{"source":{"id":"2211.04232","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-11-08T13:26:06Z","cross_cats_sorted":[],"title_canon_sha256":"56d56491c32e62450e613a35e6ae577b4dd553e47f44cc153b9e826ecde0b80e","abstract_canon_sha256":"9e2ee4e7ba9a6c2a1dc7f7e57d25f5d4aa20b83aefd6aa273301e200fb08dac7"},"schema_version":"1.0"},"canonical_sha256":"1b312457f5300449f31bd3bb16521b61a8ca692db450968906052b6c6141f05b","source":{"kind":"arxiv","id":"2211.04232","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2211.04232","created_at":"2026-07-05T05:25:09Z"},{"alias_kind":"arxiv_version","alias_value":"2211.04232v1","created_at":"2026-07-05T05:25:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2211.04232","created_at":"2026-07-05T05:25:09Z"},{"alias_kind":"pith_short_12","alias_value":"DMYSIV7VGACE","created_at":"2026-07-05T05:25:09Z"},{"alias_kind":"pith_short_16","alias_value":"DMYSIV7VGACET4Y3","created_at":"2026-07-05T05:25:09Z"},{"alias_kind":"pith_short_8","alias_value":"DMYSIV7V","created_at":"2026-07-05T05:25:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:DMYSIV7VGACET4Y32O5RMUQ3MG","target":"record","payload":{"canonical_record":{"source":{"id":"2211.04232","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-11-08T13:26:06Z","cross_cats_sorted":[],"title_canon_sha256":"56d56491c32e62450e613a35e6ae577b4dd553e47f44cc153b9e826ecde0b80e","abstract_canon_sha256":"9e2ee4e7ba9a6c2a1dc7f7e57d25f5d4aa20b83aefd6aa273301e200fb08dac7"},"schema_version":"1.0"},"canonical_sha256":"1b312457f5300449f31bd3bb16521b61a8ca692db450968906052b6c6141f05b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:25:09.401829Z","signature_b64":"DK2Gy3mrIZflSYCtvCdj6MbLF/qUa96cvURyaOlgo2ABZRSuI9TYXwvOQYtlN32O5QbCo1/iZJnPnxWRPXMCBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1b312457f5300449f31bd3bb16521b61a8ca692db450968906052b6c6141f05b","last_reissued_at":"2026-07-05T05:25:09.401390Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:25:09.401390Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2211.04232","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":"2026-07-05T05:25:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gPC77/WA8t6W6nChurly6K5pWrzfFsZo8x6LytoBT7G2k/ihmwOxW0JVpoiKifFyXiyjzteJk3IGrTWwBC24CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T00:52:37.640306Z"},"content_sha256":"24bf7d82bf7bab7021855a441cf440774c5789477a194c1eb2ee07f90db1d473","schema_version":"1.0","event_id":"sha256:24bf7d82bf7bab7021855a441cf440774c5789477a194c1eb2ee07f90db1d473"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:DMYSIV7VGACET4Y32O5RMUQ3MG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"How to create Sgr A East: Where did the supernova explode?","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"B. Barna, J. Palou\\v{s}, M. R. Morris, P. Vermot, R. W\\\" unsch, S. Ehlerov\\'a","submitted_at":"2022-11-08T13:26:06Z","abstract_excerpt":"Sgr A East is the supernova remnant closest to the centre of the Milky Way. Its age has been estimated to be either very young, around 1-2 kyr, or about 10 kyr, and its exact origin remains unclear. We aspire to create a simple model of a supernova explosion that reproduces the shape, size, and location of Sgr A East. Using a simplified hydrodynamical code, we simulated the evolution of a supernova remnant in the medium around the Galactic centre. The latter consists of a nearby massive molecular cloud with which Sgr A East is known to be interacting and a wind from the nuclear star cluster. O"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.04232","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/2211.04232/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":"2026-07-05T05:25:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U4FK8PI6m4Fc2vQSSu7n/a5ML8a91Wq3sEy3hFvSWj+7VNAzx+jrNBe0I41dADjg6xxglw/9vSg9KaOfXMCeAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T00:52:37.641010Z"},"content_sha256":"ee7e645e1505a2dc17179c5da71b2b94fa3810a88baa2b298ca6a41d6136e351","schema_version":"1.0","event_id":"sha256:ee7e645e1505a2dc17179c5da71b2b94fa3810a88baa2b298ca6a41d6136e351"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DMYSIV7VGACET4Y32O5RMUQ3MG/bundle.json","state_url":"https://pith.science/pith/DMYSIV7VGACET4Y32O5RMUQ3MG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DMYSIV7VGACET4Y32O5RMUQ3MG/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":"2026-07-07T00:52:37Z","links":{"resolver":"https://pith.science/pith/DMYSIV7VGACET4Y32O5RMUQ3MG","bundle":"https://pith.science/pith/DMYSIV7VGACET4Y32O5RMUQ3MG/bundle.json","state":"https://pith.science/pith/DMYSIV7VGACET4Y32O5RMUQ3MG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DMYSIV7VGACET4Y32O5RMUQ3MG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:DMYSIV7VGACET4Y32O5RMUQ3MG","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":"9e2ee4e7ba9a6c2a1dc7f7e57d25f5d4aa20b83aefd6aa273301e200fb08dac7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-11-08T13:26:06Z","title_canon_sha256":"56d56491c32e62450e613a35e6ae577b4dd553e47f44cc153b9e826ecde0b80e"},"schema_version":"1.0","source":{"id":"2211.04232","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2211.04232","created_at":"2026-07-05T05:25:09Z"},{"alias_kind":"arxiv_version","alias_value":"2211.04232v1","created_at":"2026-07-05T05:25:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2211.04232","created_at":"2026-07-05T05:25:09Z"},{"alias_kind":"pith_short_12","alias_value":"DMYSIV7VGACE","created_at":"2026-07-05T05:25:09Z"},{"alias_kind":"pith_short_16","alias_value":"DMYSIV7VGACET4Y3","created_at":"2026-07-05T05:25:09Z"},{"alias_kind":"pith_short_8","alias_value":"DMYSIV7V","created_at":"2026-07-05T05:25:09Z"}],"graph_snapshots":[{"event_id":"sha256:ee7e645e1505a2dc17179c5da71b2b94fa3810a88baa2b298ca6a41d6136e351","target":"graph","created_at":"2026-07-05T05:25:09Z","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/2211.04232/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Sgr A East is the supernova remnant closest to the centre of the Milky Way. Its age has been estimated to be either very young, around 1-2 kyr, or about 10 kyr, and its exact origin remains unclear. We aspire to create a simple model of a supernova explosion that reproduces the shape, size, and location of Sgr A East. Using a simplified hydrodynamical code, we simulated the evolution of a supernova remnant in the medium around the Galactic centre. The latter consists of a nearby massive molecular cloud with which Sgr A East is known to be interacting and a wind from the nuclear star cluster. O","authors_text":"B. Barna, J. Palou\\v{s}, M. R. Morris, P. Vermot, R. W\\\" unsch, S. Ehlerov\\'a","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-11-08T13:26:06Z","title":"How to create Sgr A East: Where did the supernova explode?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.04232","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":"sha256:24bf7d82bf7bab7021855a441cf440774c5789477a194c1eb2ee07f90db1d473","target":"record","created_at":"2026-07-05T05:25:09Z","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":"9e2ee4e7ba9a6c2a1dc7f7e57d25f5d4aa20b83aefd6aa273301e200fb08dac7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-11-08T13:26:06Z","title_canon_sha256":"56d56491c32e62450e613a35e6ae577b4dd553e47f44cc153b9e826ecde0b80e"},"schema_version":"1.0","source":{"id":"2211.04232","kind":"arxiv","version":1}},"canonical_sha256":"1b312457f5300449f31bd3bb16521b61a8ca692db450968906052b6c6141f05b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1b312457f5300449f31bd3bb16521b61a8ca692db450968906052b6c6141f05b","first_computed_at":"2026-07-05T05:25:09.401390Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:25:09.401390Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DK2Gy3mrIZflSYCtvCdj6MbLF/qUa96cvURyaOlgo2ABZRSuI9TYXwvOQYtlN32O5QbCo1/iZJnPnxWRPXMCBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:25:09.401829Z","signed_message":"canonical_sha256_bytes"},"source_id":"2211.04232","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:24bf7d82bf7bab7021855a441cf440774c5789477a194c1eb2ee07f90db1d473","sha256:ee7e645e1505a2dc17179c5da71b2b94fa3810a88baa2b298ca6a41d6136e351"],"state_sha256":"ada226805bb9227e626f1b4c1be651138abf63d5c0ccd347a093db623fa787bc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eyuEAEYc/xracRFqVkBjVyqSxSZCaNLjEOw2Gkqxqf08IuYDxe2g//bQoAqrQNiKIdA0zoVnZfJmdZlrDFqLCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T00:52:37.644540Z","bundle_sha256":"2382a57442a920d79ffa21de9e7009c5ef2ff5d6c7fed74fd09849b6dbf576e7"}}