{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:WCPNJRDHIVACRKWBF6JSJTACXP","short_pith_number":"pith:WCPNJRDH","canonical_record":{"source":{"id":"1410.0442","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-10-02T02:40:23Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"03f5cbf2147d8fe56caf5d6e8548e3b97707c78aae0925d286734f211a06199f","abstract_canon_sha256":"c0069756d8586f0eab413d72e53e9e699c131b8d7e77bd6cb62805f1e1ce578a"},"schema_version":"1.0"},"canonical_sha256":"b09ed4c467454028aac12f9324cc02bbe061b47376cb549518516973753a26c8","source":{"kind":"arxiv","id":"1410.0442","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.0442","created_at":"2026-05-18T02:17:42Z"},{"alias_kind":"arxiv_version","alias_value":"1410.0442v2","created_at":"2026-05-18T02:17:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.0442","created_at":"2026-05-18T02:17:42Z"},{"alias_kind":"pith_short_12","alias_value":"WCPNJRDHIVAC","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"WCPNJRDHIVACRKWB","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"WCPNJRDH","created_at":"2026-05-18T12:28:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:WCPNJRDHIVACRKWBF6JSJTACXP","target":"record","payload":{"canonical_record":{"source":{"id":"1410.0442","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-10-02T02:40:23Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"03f5cbf2147d8fe56caf5d6e8548e3b97707c78aae0925d286734f211a06199f","abstract_canon_sha256":"c0069756d8586f0eab413d72e53e9e699c131b8d7e77bd6cb62805f1e1ce578a"},"schema_version":"1.0"},"canonical_sha256":"b09ed4c467454028aac12f9324cc02bbe061b47376cb549518516973753a26c8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:17:42.894735Z","signature_b64":"94vg2V4GvvMPY0PF/galWBBmFpwspsc12NcfSD4J46AJwTA0Do4Wy0Lge87RBbhMN+pLdgYCFbphH2tCHmnqDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b09ed4c467454028aac12f9324cc02bbe061b47376cb549518516973753a26c8","last_reissued_at":"2026-05-18T02:17:42.894277Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:17:42.894277Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1410.0442","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:17:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y4GSWCdQ8FFzqtluqM6HMbkg5g61jtFwTw9FAXdUWZVsHayjfPifH/EktuDsvI+tBlFh5WA0opFq/soeigIYCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:09:37.054985Z"},"content_sha256":"4135e41f467af5ecc07ce682f1b1a9633cb8ca28f00bfc280fa04d2fce388c84","schema_version":"1.0","event_id":"sha256:4135e41f467af5ecc07ce682f1b1a9633cb8ca28f00bfc280fa04d2fce388c84"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:WCPNJRDHIVACRKWBF6JSJTACXP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cosmic evolution of bars in simulations of galaxy formation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"(2) Tokyo Univeristy, 3), (3) NAOJ), Asao Habe (1) ((1) Hokkaido University, Mari Isoe (2, Takashi Okamoto (1)","submitted_at":"2014-10-02T02:40:23Z","abstract_excerpt":"We investigate the evolution of two bars formed in fully self-consistent hydrodynamic simulations of the formation of Milky Way-mass galaxies. One galaxy shows higher central mass concentration and has a longer and stronger bar than the other at $z = 0$. The stronger bar evolves by transferring its angular momentum mainly to the dark halo. Consequently the rotation speed of the bar decreases with time, while the amplitude of the bar increases with time. These features qualitatively agree with the results obtained by idealized simulations. The pattern speed of the stronger bar largely goes up a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.0442","kind":"arxiv","version":2},"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":"2026-05-18T02:17:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"01b3vTcBYrI/+m0e5+4bRNHXyQHk8+gk/iMMHXPHPayQSu//n63d0X/YJghdfl9ZN2X+/RdSxoSoSFzQCIgVAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:09:37.055378Z"},"content_sha256":"0ecedc70213f1a360a314e8f316e97447bf1fd51827ba9da879cc6599fd74e31","schema_version":"1.0","event_id":"sha256:0ecedc70213f1a360a314e8f316e97447bf1fd51827ba9da879cc6599fd74e31"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WCPNJRDHIVACRKWBF6JSJTACXP/bundle.json","state_url":"https://pith.science/pith/WCPNJRDHIVACRKWBF6JSJTACXP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WCPNJRDHIVACRKWBF6JSJTACXP/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":"2026-05-25T20:09:37Z","links":{"resolver":"https://pith.science/pith/WCPNJRDHIVACRKWBF6JSJTACXP","bundle":"https://pith.science/pith/WCPNJRDHIVACRKWBF6JSJTACXP/bundle.json","state":"https://pith.science/pith/WCPNJRDHIVACRKWBF6JSJTACXP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WCPNJRDHIVACRKWBF6JSJTACXP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:WCPNJRDHIVACRKWBF6JSJTACXP","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":"c0069756d8586f0eab413d72e53e9e699c131b8d7e77bd6cb62805f1e1ce578a","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-10-02T02:40:23Z","title_canon_sha256":"03f5cbf2147d8fe56caf5d6e8548e3b97707c78aae0925d286734f211a06199f"},"schema_version":"1.0","source":{"id":"1410.0442","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.0442","created_at":"2026-05-18T02:17:42Z"},{"alias_kind":"arxiv_version","alias_value":"1410.0442v2","created_at":"2026-05-18T02:17:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.0442","created_at":"2026-05-18T02:17:42Z"},{"alias_kind":"pith_short_12","alias_value":"WCPNJRDHIVAC","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"WCPNJRDHIVACRKWB","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"WCPNJRDH","created_at":"2026-05-18T12:28:54Z"}],"graph_snapshots":[{"event_id":"sha256:0ecedc70213f1a360a314e8f316e97447bf1fd51827ba9da879cc6599fd74e31","target":"graph","created_at":"2026-05-18T02:17:42Z","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 investigate the evolution of two bars formed in fully self-consistent hydrodynamic simulations of the formation of Milky Way-mass galaxies. One galaxy shows higher central mass concentration and has a longer and stronger bar than the other at $z = 0$. The stronger bar evolves by transferring its angular momentum mainly to the dark halo. Consequently the rotation speed of the bar decreases with time, while the amplitude of the bar increases with time. These features qualitatively agree with the results obtained by idealized simulations. The pattern speed of the stronger bar largely goes up a","authors_text":"(2) Tokyo Univeristy, 3), (3) NAOJ), Asao Habe (1) ((1) Hokkaido University, Mari Isoe (2, Takashi Okamoto (1)","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-10-02T02:40:23Z","title":"Cosmic evolution of bars in simulations of galaxy formation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.0442","kind":"arxiv","version":2},"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":"sha256:4135e41f467af5ecc07ce682f1b1a9633cb8ca28f00bfc280fa04d2fce388c84","target":"record","created_at":"2026-05-18T02:17:42Z","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":"c0069756d8586f0eab413d72e53e9e699c131b8d7e77bd6cb62805f1e1ce578a","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-10-02T02:40:23Z","title_canon_sha256":"03f5cbf2147d8fe56caf5d6e8548e3b97707c78aae0925d286734f211a06199f"},"schema_version":"1.0","source":{"id":"1410.0442","kind":"arxiv","version":2}},"canonical_sha256":"b09ed4c467454028aac12f9324cc02bbe061b47376cb549518516973753a26c8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b09ed4c467454028aac12f9324cc02bbe061b47376cb549518516973753a26c8","first_computed_at":"2026-05-18T02:17:42.894277Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:17:42.894277Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"94vg2V4GvvMPY0PF/galWBBmFpwspsc12NcfSD4J46AJwTA0Do4Wy0Lge87RBbhMN+pLdgYCFbphH2tCHmnqDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:17:42.894735Z","signed_message":"canonical_sha256_bytes"},"source_id":"1410.0442","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4135e41f467af5ecc07ce682f1b1a9633cb8ca28f00bfc280fa04d2fce388c84","sha256:0ecedc70213f1a360a314e8f316e97447bf1fd51827ba9da879cc6599fd74e31"],"state_sha256":"1772db6483b49f9235e45fec5a5b8b3c4c9eae3f35278445b363fe7a169b45eb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"C1nm/FRLMNYPDktZWxcDAQopyZHOaUPlF2m0Zw4pVTCDppfaJBLbuBaxjVhz77eiUzTvy+ORgDqXj9mQ2KjLCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T20:09:37.058663Z","bundle_sha256":"99541ac2e626e44bb2fcd1a990b28da22978629b62f91c58c22d54e3dadcfcc4"}}