{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:Q2Q5CDZR5D3HLZ7FPCXCGVS3XG","short_pith_number":"pith:Q2Q5CDZR","canonical_record":{"source":{"id":"1111.1718","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-11-07T21:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"feeb9fb36e62e04cf10efb0c3407440c0931ada4b6c453b3ed0b36e81a1345ec","abstract_canon_sha256":"5f9c0bd94b2ebc1488dd425ced058ccee051580a7d37cfcd5ea54a3bbe84d570"},"schema_version":"1.0"},"canonical_sha256":"86a1d10f31e8f675e7e578ae23565bb9b8345988803c37b0da03235221d4e11d","source":{"kind":"arxiv","id":"1111.1718","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.1718","created_at":"2026-05-18T01:59:44Z"},{"alias_kind":"arxiv_version","alias_value":"1111.1718v1","created_at":"2026-05-18T01:59:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.1718","created_at":"2026-05-18T01:59:44Z"},{"alias_kind":"pith_short_12","alias_value":"Q2Q5CDZR5D3H","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"Q2Q5CDZR5D3HLZ7F","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"Q2Q5CDZR","created_at":"2026-05-18T12:26:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:Q2Q5CDZR5D3HLZ7FPCXCGVS3XG","target":"record","payload":{"canonical_record":{"source":{"id":"1111.1718","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-11-07T21:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"feeb9fb36e62e04cf10efb0c3407440c0931ada4b6c453b3ed0b36e81a1345ec","abstract_canon_sha256":"5f9c0bd94b2ebc1488dd425ced058ccee051580a7d37cfcd5ea54a3bbe84d570"},"schema_version":"1.0"},"canonical_sha256":"86a1d10f31e8f675e7e578ae23565bb9b8345988803c37b0da03235221d4e11d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:59:44.229072Z","signature_b64":"RAM3sDMYCFmeDcrgVCWyEQ4jBYUWx7Adc0BIPSVIGDUYCTMWAI1vcD9c1bEHsjSKC47/SiU1NkSiXkO4roBbAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"86a1d10f31e8f675e7e578ae23565bb9b8345988803c37b0da03235221d4e11d","last_reissued_at":"2026-05-18T01:59:44.228296Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:59:44.228296Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1111.1718","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":"2026-05-18T01:59:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jW64Qg1li4b4BR3MBS5zFpNXk8a6rfmta7RdDfsHw+Tkg8fSfxSHilAmxtmxRTpXArdIq+ZPK8E7TgN//2tRAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T13:12:13.916774Z"},"content_sha256":"100b9ca10b1bb34b38df3e381b4d1af93b0a023ac40f3812a852130ac957815d","schema_version":"1.0","event_id":"sha256:100b9ca10b1bb34b38df3e381b4d1af93b0a023ac40f3812a852130ac957815d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:Q2Q5CDZR5D3HLZ7FPCXCGVS3XG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constraining the formation of inner bars. Photometry, kinematics and stellar populations in NGC 357","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"2), (2) Departamento de Astrof\\'isica, (3) Dipartimento di Astronomia, (4) Jeremiah Horrocks Institute, A. de Lorenzo-C\\'aceres (1, A. Vazdekis (1, E. M. Corsini (3), J. A. L. Aguerri (1, Universidad de La Laguna, Universita di Padova, University of Central Lancashire), Victor P. Debattista (4) ((1) Instituto de Astrof\\'isica de Canarias","submitted_at":"2011-11-07T21:00:00Z","abstract_excerpt":"Double-barred galaxies are common in the local Universe, with approximately one third of barred spirals hosting an smaller, inner bar. Nested bars have been proposed as a mechanism for transporting gas to the very central regions of the galaxy, trigger star formation and contribute to the growth of the bulge. To test this idea, we perform for the first time a detailed analysis of the photometry, kinematics and stellar populations of a double-barred galaxy: NGC 357. We find that this galaxy is either hosting a pseudobulge or a classical bulge together with an inner disc. We compare the relative"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.1718","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":"2026-05-18T01:59:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X7kr1j+XbQjdsN4YtS9iIi/ZHlyBE5DJU0i+AKepyPr3HGn245JI5ACLmG7GAkXlY/540BMok6AbeF/XobzJDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T13:12:13.917133Z"},"content_sha256":"fd5be00552c0ddbeedea562ee6181c35fc16254a578687e1b653a8761e30f1e3","schema_version":"1.0","event_id":"sha256:fd5be00552c0ddbeedea562ee6181c35fc16254a578687e1b653a8761e30f1e3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q2Q5CDZR5D3HLZ7FPCXCGVS3XG/bundle.json","state_url":"https://pith.science/pith/Q2Q5CDZR5D3HLZ7FPCXCGVS3XG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q2Q5CDZR5D3HLZ7FPCXCGVS3XG/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":"2026-05-30T13:12:13Z","links":{"resolver":"https://pith.science/pith/Q2Q5CDZR5D3HLZ7FPCXCGVS3XG","bundle":"https://pith.science/pith/Q2Q5CDZR5D3HLZ7FPCXCGVS3XG/bundle.json","state":"https://pith.science/pith/Q2Q5CDZR5D3HLZ7FPCXCGVS3XG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q2Q5CDZR5D3HLZ7FPCXCGVS3XG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:Q2Q5CDZR5D3HLZ7FPCXCGVS3XG","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":"5f9c0bd94b2ebc1488dd425ced058ccee051580a7d37cfcd5ea54a3bbe84d570","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-11-07T21:00:00Z","title_canon_sha256":"feeb9fb36e62e04cf10efb0c3407440c0931ada4b6c453b3ed0b36e81a1345ec"},"schema_version":"1.0","source":{"id":"1111.1718","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.1718","created_at":"2026-05-18T01:59:44Z"},{"alias_kind":"arxiv_version","alias_value":"1111.1718v1","created_at":"2026-05-18T01:59:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.1718","created_at":"2026-05-18T01:59:44Z"},{"alias_kind":"pith_short_12","alias_value":"Q2Q5CDZR5D3H","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"Q2Q5CDZR5D3HLZ7F","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"Q2Q5CDZR","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:fd5be00552c0ddbeedea562ee6181c35fc16254a578687e1b653a8761e30f1e3","target":"graph","created_at":"2026-05-18T01:59:44Z","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":"Double-barred galaxies are common in the local Universe, with approximately one third of barred spirals hosting an smaller, inner bar. Nested bars have been proposed as a mechanism for transporting gas to the very central regions of the galaxy, trigger star formation and contribute to the growth of the bulge. To test this idea, we perform for the first time a detailed analysis of the photometry, kinematics and stellar populations of a double-barred galaxy: NGC 357. We find that this galaxy is either hosting a pseudobulge or a classical bulge together with an inner disc. We compare the relative","authors_text":"2), (2) Departamento de Astrof\\'isica, (3) Dipartimento di Astronomia, (4) Jeremiah Horrocks Institute, A. de Lorenzo-C\\'aceres (1, A. Vazdekis (1, E. M. Corsini (3), J. A. L. Aguerri (1, Universidad de La Laguna, Universita di Padova, University of Central Lancashire), Victor P. Debattista (4) ((1) Instituto de Astrof\\'isica de Canarias","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-11-07T21:00:00Z","title":"Constraining the formation of inner bars. Photometry, kinematics and stellar populations in NGC 357"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.1718","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":"sha256:100b9ca10b1bb34b38df3e381b4d1af93b0a023ac40f3812a852130ac957815d","target":"record","created_at":"2026-05-18T01:59:44Z","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":"5f9c0bd94b2ebc1488dd425ced058ccee051580a7d37cfcd5ea54a3bbe84d570","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-11-07T21:00:00Z","title_canon_sha256":"feeb9fb36e62e04cf10efb0c3407440c0931ada4b6c453b3ed0b36e81a1345ec"},"schema_version":"1.0","source":{"id":"1111.1718","kind":"arxiv","version":1}},"canonical_sha256":"86a1d10f31e8f675e7e578ae23565bb9b8345988803c37b0da03235221d4e11d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"86a1d10f31e8f675e7e578ae23565bb9b8345988803c37b0da03235221d4e11d","first_computed_at":"2026-05-18T01:59:44.228296Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:44.228296Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RAM3sDMYCFmeDcrgVCWyEQ4jBYUWx7Adc0BIPSVIGDUYCTMWAI1vcD9c1bEHsjSKC47/SiU1NkSiXkO4roBbAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:44.229072Z","signed_message":"canonical_sha256_bytes"},"source_id":"1111.1718","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:100b9ca10b1bb34b38df3e381b4d1af93b0a023ac40f3812a852130ac957815d","sha256:fd5be00552c0ddbeedea562ee6181c35fc16254a578687e1b653a8761e30f1e3"],"state_sha256":"c71d547a289dd8e198c27eb0bcba1ed126956da131b52e9c9dbc644ba72410bf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T0ksZdskvBVGh0tFwsKOloJh+o2JXsu34ugy2xsgPoWN4IPmb03s8e2loQz0EhEB+5Duh7JVn0a+nKHq1H+4BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T13:12:13.919296Z","bundle_sha256":"c4569ddd69ca223b8872384253f7a5853945b7128bba2510a8f739fa10103b60"}}