{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:SG66PSKKBVU2524TJ45HSOUZIZ","short_pith_number":"pith:SG66PSKK","canonical_record":{"source":{"id":"astro-ph/0610517","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-10-17T15:01:28Z","cross_cats_sorted":[],"title_canon_sha256":"0445d35bf035d633ff1d13f1d61a54cd4f28c0e19ef846d74cbcb35ef5d1ba63","abstract_canon_sha256":"2fd8a7b3a093214b2a729f5219d32b692fd5c6ecd377428893e844eecef43b3d"},"schema_version":"1.0"},"canonical_sha256":"91bde7c94a0d69aeeb934f3a793a994653a34af3e982791fa0091f93350397c5","source":{"kind":"arxiv","id":"astro-ph/0610517","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0610517","created_at":"2026-07-04T16:59:32Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0610517v1","created_at":"2026-07-04T16:59:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0610517","created_at":"2026-07-04T16:59:32Z"},{"alias_kind":"pith_short_12","alias_value":"SG66PSKKBVU2","created_at":"2026-07-04T16:59:32Z"},{"alias_kind":"pith_short_16","alias_value":"SG66PSKKBVU2524T","created_at":"2026-07-04T16:59:32Z"},{"alias_kind":"pith_short_8","alias_value":"SG66PSKK","created_at":"2026-07-04T16:59:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:SG66PSKKBVU2524TJ45HSOUZIZ","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0610517","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-10-17T15:01:28Z","cross_cats_sorted":[],"title_canon_sha256":"0445d35bf035d633ff1d13f1d61a54cd4f28c0e19ef846d74cbcb35ef5d1ba63","abstract_canon_sha256":"2fd8a7b3a093214b2a729f5219d32b692fd5c6ecd377428893e844eecef43b3d"},"schema_version":"1.0"},"canonical_sha256":"91bde7c94a0d69aeeb934f3a793a994653a34af3e982791fa0091f93350397c5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:59:32.644243Z","signature_b64":"M+4ieeKbFvMeEk8/YI354iuJuaDwxBsaibeG7DHy3Qk4WEIdnwp9ZcLKX/pS/mJN0CUk4QU3DLOwEpfvIYdWDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"91bde7c94a0d69aeeb934f3a793a994653a34af3e982791fa0091f93350397c5","last_reissued_at":"2026-07-04T16:59:32.643855Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:59:32.643855Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0610517","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":"2026-07-04T16:59:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O9kZi7UsglXJ8CgvfBcN8kW0WSfRwJDRqvWa7ZTP/axtCjU1eGzaq8wdZhHhcWfAElUMR0fIjh27WI78DT7eDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T00:07:41.683900Z"},"content_sha256":"7ff6007cf24ba225405ba048439aae3a66b36a6a1f8c0eb701d424fa98f75838","schema_version":"1.0","event_id":"sha256:7ff6007cf24ba225405ba048439aae3a66b36a6a1f8c0eb701d424fa98f75838"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:SG66PSKKBVU2524TJ45HSOUZIZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"About the evolution of Dwarf Spheroidal Galaxies","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) INAF - Osservatorio Astronomico di Bologna, (3) Dipartimento di Astronomia, 4) ((1) Institute of Astronomy, (4) INAF - Osservatorio Astronomico di Trieste), A. D'Ercole (2), A. Marcolini (1), Austria, F. Brighenti (3), S. Recchi (1, Universita' di Bologna, Vienna University","submitted_at":"2006-10-17T15:01:28Z","abstract_excerpt":"We present 3D hydrodynamic simulations aimed at studying the dynamical and chemical evolution of the interstellar medium in dwarf spheroidal galaxies. This evolution is driven by the explosions of Type II and Type Ia supernovae, whose different contribution is explicitly taken into account in our models. We compare our results with avaiable properties of the Draco galaxy. Despite the huge amount of energy released by SNe explosions, in our model the galaxy is able to retain most of the gas allowing a long period ($> 3$ Gyr) of star formation, consistent with the star formation history derived "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0610517","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/astro-ph/0610517/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":"2026-07-04T16:59:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sSCUNMmrjvkspOnMrHgSdrXrTRQsU79Vj7b0yXex9N2lVyOo22mx5a/qbOOj4WgIFQK7fkKKlLiBYEu/Z4BkCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T00:07:41.684424Z"},"content_sha256":"bad53cc7bd3530c7b1f3703a7c98c3af7c68b73b98cf8586032dcfb61806297e","schema_version":"1.0","event_id":"sha256:bad53cc7bd3530c7b1f3703a7c98c3af7c68b73b98cf8586032dcfb61806297e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SG66PSKKBVU2524TJ45HSOUZIZ/bundle.json","state_url":"https://pith.science/pith/SG66PSKKBVU2524TJ45HSOUZIZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SG66PSKKBVU2524TJ45HSOUZIZ/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":"2026-08-04T00:07:41Z","links":{"resolver":"https://pith.science/pith/SG66PSKKBVU2524TJ45HSOUZIZ","bundle":"https://pith.science/pith/SG66PSKKBVU2524TJ45HSOUZIZ/bundle.json","state":"https://pith.science/pith/SG66PSKKBVU2524TJ45HSOUZIZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SG66PSKKBVU2524TJ45HSOUZIZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:SG66PSKKBVU2524TJ45HSOUZIZ","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":"2fd8a7b3a093214b2a729f5219d32b692fd5c6ecd377428893e844eecef43b3d","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-10-17T15:01:28Z","title_canon_sha256":"0445d35bf035d633ff1d13f1d61a54cd4f28c0e19ef846d74cbcb35ef5d1ba63"},"schema_version":"1.0","source":{"id":"astro-ph/0610517","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0610517","created_at":"2026-07-04T16:59:32Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0610517v1","created_at":"2026-07-04T16:59:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0610517","created_at":"2026-07-04T16:59:32Z"},{"alias_kind":"pith_short_12","alias_value":"SG66PSKKBVU2","created_at":"2026-07-04T16:59:32Z"},{"alias_kind":"pith_short_16","alias_value":"SG66PSKKBVU2524T","created_at":"2026-07-04T16:59:32Z"},{"alias_kind":"pith_short_8","alias_value":"SG66PSKK","created_at":"2026-07-04T16:59:32Z"}],"graph_snapshots":[{"event_id":"sha256:bad53cc7bd3530c7b1f3703a7c98c3af7c68b73b98cf8586032dcfb61806297e","target":"graph","created_at":"2026-07-04T16:59:32Z","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/astro-ph/0610517/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present 3D hydrodynamic simulations aimed at studying the dynamical and chemical evolution of the interstellar medium in dwarf spheroidal galaxies. This evolution is driven by the explosions of Type II and Type Ia supernovae, whose different contribution is explicitly taken into account in our models. We compare our results with avaiable properties of the Draco galaxy. Despite the huge amount of energy released by SNe explosions, in our model the galaxy is able to retain most of the gas allowing a long period ($> 3$ Gyr) of star formation, consistent with the star formation history derived ","authors_text":"(2) INAF - Osservatorio Astronomico di Bologna, (3) Dipartimento di Astronomia, 4) ((1) Institute of Astronomy, (4) INAF - Osservatorio Astronomico di Trieste), A. D'Ercole (2), A. Marcolini (1), Austria, F. Brighenti (3), S. Recchi (1, Universita' di Bologna, Vienna University","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-10-17T15:01:28Z","title":"About the evolution of Dwarf Spheroidal Galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0610517","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":"sha256:7ff6007cf24ba225405ba048439aae3a66b36a6a1f8c0eb701d424fa98f75838","target":"record","created_at":"2026-07-04T16:59:32Z","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":"2fd8a7b3a093214b2a729f5219d32b692fd5c6ecd377428893e844eecef43b3d","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-10-17T15:01:28Z","title_canon_sha256":"0445d35bf035d633ff1d13f1d61a54cd4f28c0e19ef846d74cbcb35ef5d1ba63"},"schema_version":"1.0","source":{"id":"astro-ph/0610517","kind":"arxiv","version":1}},"canonical_sha256":"91bde7c94a0d69aeeb934f3a793a994653a34af3e982791fa0091f93350397c5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"91bde7c94a0d69aeeb934f3a793a994653a34af3e982791fa0091f93350397c5","first_computed_at":"2026-07-04T16:59:32.643855Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:59:32.643855Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"M+4ieeKbFvMeEk8/YI354iuJuaDwxBsaibeG7DHy3Qk4WEIdnwp9ZcLKX/pS/mJN0CUk4QU3DLOwEpfvIYdWDQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:59:32.644243Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0610517","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7ff6007cf24ba225405ba048439aae3a66b36a6a1f8c0eb701d424fa98f75838","sha256:bad53cc7bd3530c7b1f3703a7c98c3af7c68b73b98cf8586032dcfb61806297e"],"state_sha256":"d57c234e80744aa821bbd241be3b20bcbf034403a440a151a80ffcd64a2a6a12"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pv6nSFUTX/32s6zPLtP/6CuZ4hgZraS6zD4avIKaKn3ucwBIyBNcTIqSVKNjNAqyVVL7IaZ3W8jqHW/+cCSDAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T00:07:41.688648Z","bundle_sha256":"d3a21d563efac4a94c0af19150d394bb41bea1034539240cdf2a5dca2b6890f1"}}