{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:CCBKLN43EFJLXFINZZA2UTM4SX","short_pith_number":"pith:CCBKLN43","canonical_record":{"source":{"id":"1205.6865","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-05-31T01:02:11Z","cross_cats_sorted":[],"title_canon_sha256":"95db7e882330da162cf12da3ebba5906964074cfc8518be39e0c16d922a5d77f","abstract_canon_sha256":"dfd766c9f05c44b2bfc1a11cb122f1731945e3232d0171d026a58e2f30b4502b"},"schema_version":"1.0"},"canonical_sha256":"1082a5b79b2152bb950dce41aa4d9c95e7fd2a8916542428d6c546394f55ed45","source":{"kind":"arxiv","id":"1205.6865","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1205.6865","created_at":"2026-05-18T03:53:54Z"},{"alias_kind":"arxiv_version","alias_value":"1205.6865v1","created_at":"2026-05-18T03:53:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.6865","created_at":"2026-05-18T03:53:54Z"},{"alias_kind":"pith_short_12","alias_value":"CCBKLN43EFJL","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"CCBKLN43EFJLXFIN","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"CCBKLN43","created_at":"2026-05-18T12:27:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:CCBKLN43EFJLXFINZZA2UTM4SX","target":"record","payload":{"canonical_record":{"source":{"id":"1205.6865","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-05-31T01:02:11Z","cross_cats_sorted":[],"title_canon_sha256":"95db7e882330da162cf12da3ebba5906964074cfc8518be39e0c16d922a5d77f","abstract_canon_sha256":"dfd766c9f05c44b2bfc1a11cb122f1731945e3232d0171d026a58e2f30b4502b"},"schema_version":"1.0"},"canonical_sha256":"1082a5b79b2152bb950dce41aa4d9c95e7fd2a8916542428d6c546394f55ed45","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:53:54.044633Z","signature_b64":"Yc4XC2/Xy5fmMZT+Lt62/xmVUBnnnj+RS5JRAXPOkZNQkuxdTblVGxsMdJyFqc16D6/BaGmNkEE/d2VU48rNCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1082a5b79b2152bb950dce41aa4d9c95e7fd2a8916542428d6c546394f55ed45","last_reissued_at":"2026-05-18T03:53:54.044055Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:53:54.044055Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1205.6865","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":"2026-05-18T03:53:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gQaAxN9wRgBFda/OvmspLVUB89NpPuwhzJtoP6b9t+3BTfr6//6Tjg3pf2xPrL/j3I9ooFHYnsmvxD6VTxEyAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T17:34:35.256892Z"},"content_sha256":"36a7e260e53c36b3210274181e1f734b640422013d2cb0625290f4ea0ef0509b","schema_version":"1.0","event_id":"sha256:36a7e260e53c36b3210274181e1f734b640422013d2cb0625290f4ea0ef0509b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:CCBKLN43EFJLXFINZZA2UTM4SX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The M31 Velocity Vector. III. Future Milky Way-M31-M33 Orbital Evolution, Merging, and Fate of the Sun","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"(2) Columbia U, (3) Carnegie Observatories), Gurtina Besla (2), Jay Anderson (1) ((1) STScI, Roeland P. van der Marel (1), Sangmo Tony Sohn (1), T. J. Cox (3)","submitted_at":"2012-05-31T01:02:11Z","abstract_excerpt":"We study the future orbital evolution and merging of the MW-M31-M33 system, using a combination of collisionless N-body simulations and semi-analytic orbit integrations. Monte-Carlo simulations are used to explore the consequences of varying the initial phase-space and mass parameters within their observational uncertainties. The observed M31 transverse velocity implies that the MW and M31 will merge t = 5.86 (+1.61-0.72) Gyr from now, after a first pericenter at t = 3.87 (+0.42-0.32) Gyr. M31 may (probability p=41%) make a direct hit with the MW (defined here as a first-pericenter distance le"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.6865","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":"2026-05-18T03:53:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"epdHvGiUFSYuqb/fNTWb1bnTmJsEFfOFnE8HWWZErSTAHz5PcjLyFksqNvkSpq72TRJHfRRZs4hCdpY8lNQ9BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T17:34:35.257241Z"},"content_sha256":"d9710105513497b116ed34ed3d086049d01c6fbec1f6c27e973009bb92e8cb96","schema_version":"1.0","event_id":"sha256:d9710105513497b116ed34ed3d086049d01c6fbec1f6c27e973009bb92e8cb96"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CCBKLN43EFJLXFINZZA2UTM4SX/bundle.json","state_url":"https://pith.science/pith/CCBKLN43EFJLXFINZZA2UTM4SX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CCBKLN43EFJLXFINZZA2UTM4SX/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":"2026-06-01T17:34:35Z","links":{"resolver":"https://pith.science/pith/CCBKLN43EFJLXFINZZA2UTM4SX","bundle":"https://pith.science/pith/CCBKLN43EFJLXFINZZA2UTM4SX/bundle.json","state":"https://pith.science/pith/CCBKLN43EFJLXFINZZA2UTM4SX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CCBKLN43EFJLXFINZZA2UTM4SX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:CCBKLN43EFJLXFINZZA2UTM4SX","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":"dfd766c9f05c44b2bfc1a11cb122f1731945e3232d0171d026a58e2f30b4502b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-05-31T01:02:11Z","title_canon_sha256":"95db7e882330da162cf12da3ebba5906964074cfc8518be39e0c16d922a5d77f"},"schema_version":"1.0","source":{"id":"1205.6865","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1205.6865","created_at":"2026-05-18T03:53:54Z"},{"alias_kind":"arxiv_version","alias_value":"1205.6865v1","created_at":"2026-05-18T03:53:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.6865","created_at":"2026-05-18T03:53:54Z"},{"alias_kind":"pith_short_12","alias_value":"CCBKLN43EFJL","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"CCBKLN43EFJLXFIN","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"CCBKLN43","created_at":"2026-05-18T12:27:01Z"}],"graph_snapshots":[{"event_id":"sha256:d9710105513497b116ed34ed3d086049d01c6fbec1f6c27e973009bb92e8cb96","target":"graph","created_at":"2026-05-18T03:53:54Z","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 study the future orbital evolution and merging of the MW-M31-M33 system, using a combination of collisionless N-body simulations and semi-analytic orbit integrations. Monte-Carlo simulations are used to explore the consequences of varying the initial phase-space and mass parameters within their observational uncertainties. The observed M31 transverse velocity implies that the MW and M31 will merge t = 5.86 (+1.61-0.72) Gyr from now, after a first pericenter at t = 3.87 (+0.42-0.32) Gyr. M31 may (probability p=41%) make a direct hit with the MW (defined here as a first-pericenter distance le","authors_text":"(2) Columbia U, (3) Carnegie Observatories), Gurtina Besla (2), Jay Anderson (1) ((1) STScI, Roeland P. van der Marel (1), Sangmo Tony Sohn (1), T. J. Cox (3)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-05-31T01:02:11Z","title":"The M31 Velocity Vector. III. Future Milky Way-M31-M33 Orbital Evolution, Merging, and Fate of the Sun"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.6865","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":"sha256:36a7e260e53c36b3210274181e1f734b640422013d2cb0625290f4ea0ef0509b","target":"record","created_at":"2026-05-18T03:53:54Z","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":"dfd766c9f05c44b2bfc1a11cb122f1731945e3232d0171d026a58e2f30b4502b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-05-31T01:02:11Z","title_canon_sha256":"95db7e882330da162cf12da3ebba5906964074cfc8518be39e0c16d922a5d77f"},"schema_version":"1.0","source":{"id":"1205.6865","kind":"arxiv","version":1}},"canonical_sha256":"1082a5b79b2152bb950dce41aa4d9c95e7fd2a8916542428d6c546394f55ed45","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1082a5b79b2152bb950dce41aa4d9c95e7fd2a8916542428d6c546394f55ed45","first_computed_at":"2026-05-18T03:53:54.044055Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:53:54.044055Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Yc4XC2/Xy5fmMZT+Lt62/xmVUBnnnj+RS5JRAXPOkZNQkuxdTblVGxsMdJyFqc16D6/BaGmNkEE/d2VU48rNCg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:53:54.044633Z","signed_message":"canonical_sha256_bytes"},"source_id":"1205.6865","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:36a7e260e53c36b3210274181e1f734b640422013d2cb0625290f4ea0ef0509b","sha256:d9710105513497b116ed34ed3d086049d01c6fbec1f6c27e973009bb92e8cb96"],"state_sha256":"ec40ee1d7ab74bd2edb911b484cfa54c4f7e8fc7592ad200dfdf4936d8303f7e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kFAqwZzhhLGXnnifu5FUlgl8RrSsm6A5ZVbCaNVWJhHYgHnDQYHFHbqA3odD+r45ksnGaBCTb2QLlCHbWCKECA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T17:34:35.259217Z","bundle_sha256":"8dbc830e29ef0cd97cdcc7f4df663b1e132c03d121cd1e821be53a029c104e73"}}