{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:4ZHYG5BYZPVTAZN4K6VJLK2XL4","short_pith_number":"pith:4ZHYG5BY","canonical_record":{"source":{"id":"1601.07529","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-01-27T20:17:37Z","cross_cats_sorted":[],"title_canon_sha256":"e8292f44d495a094beff324343c021df8159b66a1277efcf3bbf7522f2c9f943","abstract_canon_sha256":"a5d8ad8ddfe395f85a50de65c84f17d55573a0753de1501c3d39e18b2520f674"},"schema_version":"1.0"},"canonical_sha256":"e64f837438cbeb3065bc57aa95ab575f35929cc6ac1c0da8a808c5795b90e229","source":{"kind":"arxiv","id":"1601.07529","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.07529","created_at":"2026-07-05T02:52:36Z"},{"alias_kind":"arxiv_version","alias_value":"1601.07529v3","created_at":"2026-07-05T02:52:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.07529","created_at":"2026-07-05T02:52:36Z"},{"alias_kind":"pith_short_12","alias_value":"4ZHYG5BYZPVT","created_at":"2026-07-05T02:52:36Z"},{"alias_kind":"pith_short_16","alias_value":"4ZHYG5BYZPVTAZN4","created_at":"2026-07-05T02:52:36Z"},{"alias_kind":"pith_short_8","alias_value":"4ZHYG5BY","created_at":"2026-07-05T02:52:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:4ZHYG5BYZPVTAZN4K6VJLK2XL4","target":"record","payload":{"canonical_record":{"source":{"id":"1601.07529","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-01-27T20:17:37Z","cross_cats_sorted":[],"title_canon_sha256":"e8292f44d495a094beff324343c021df8159b66a1277efcf3bbf7522f2c9f943","abstract_canon_sha256":"a5d8ad8ddfe395f85a50de65c84f17d55573a0753de1501c3d39e18b2520f674"},"schema_version":"1.0"},"canonical_sha256":"e64f837438cbeb3065bc57aa95ab575f35929cc6ac1c0da8a808c5795b90e229","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:52:36.431691Z","signature_b64":"hGXjSxcVUT4hGscYaZOdYLxFC1U666x++7uhW7KHR1n0GqnLTNNvQPHpzm/lnHbWLM3UNGCJch7wL/LDh4WnDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e64f837438cbeb3065bc57aa95ab575f35929cc6ac1c0da8a808c5795b90e229","last_reissued_at":"2026-07-05T02:52:36.431246Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:52:36.431246Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1601.07529","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:52:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f2iDRsuwmW/NmXxxXo7G4aql0ewp65wn9WkfroStuwEexzKNsq92K5gwuypClvZCBfE4x3M8oPPbDG0oGZCPCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T04:02:48.332144Z"},"content_sha256":"51c79364bb814ebadaeb55459354035e2c29837279acc47b7f55488cb0cc34a9","schema_version":"1.0","event_id":"sha256:51c79364bb814ebadaeb55459354035e2c29837279acc47b7f55488cb0cc34a9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:4ZHYG5BYZPVTAZN4K6VJLK2XL4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Canonical Hamiltonian for an extended test body in curved spacetime: To quadratic order in spin","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Daniela Kunst, Jan Steinhoff, Justin Vines, Tanja Hinderer","submitted_at":"2016-01-27T20:17:37Z","abstract_excerpt":"We derive a Hamiltonian for an extended spinning test body in a curved background spacetime, to quadratic order in the spin, in terms of three-dimensional position, momentum, and spin variables having canonical Poisson brackets. This requires a careful analysis of how changes of the spin supplementary condition are related to shifts of the body's representative worldline and transformations of the body's multipole moments, and we employ bitensor calculus for a precise framing of this analysis. We apply the result to the case of the Kerr spacetime and thereby compute an explicit canonical Hamil"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.07529","kind":"arxiv","version":3},"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/1601.07529/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":"2026-07-05T02:52:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cSsRBIHAWma+0pFRYrd8s+hHirQ5ziBKlIh9AVmxA7eut4NPuBru1GFaDcEiHJ/EPaP7iHxjSBvEuoWS1ycLAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T04:02:48.332669Z"},"content_sha256":"8b2485e52bd78802d6244d585413cee43039276db3d6d93b731764147273bea9","schema_version":"1.0","event_id":"sha256:8b2485e52bd78802d6244d585413cee43039276db3d6d93b731764147273bea9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4ZHYG5BYZPVTAZN4K6VJLK2XL4/bundle.json","state_url":"https://pith.science/pith/4ZHYG5BYZPVTAZN4K6VJLK2XL4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4ZHYG5BYZPVTAZN4K6VJLK2XL4/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":"2026-08-07T04:02:48Z","links":{"resolver":"https://pith.science/pith/4ZHYG5BYZPVTAZN4K6VJLK2XL4","bundle":"https://pith.science/pith/4ZHYG5BYZPVTAZN4K6VJLK2XL4/bundle.json","state":"https://pith.science/pith/4ZHYG5BYZPVTAZN4K6VJLK2XL4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4ZHYG5BYZPVTAZN4K6VJLK2XL4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:4ZHYG5BYZPVTAZN4K6VJLK2XL4","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":"a5d8ad8ddfe395f85a50de65c84f17d55573a0753de1501c3d39e18b2520f674","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-01-27T20:17:37Z","title_canon_sha256":"e8292f44d495a094beff324343c021df8159b66a1277efcf3bbf7522f2c9f943"},"schema_version":"1.0","source":{"id":"1601.07529","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.07529","created_at":"2026-07-05T02:52:36Z"},{"alias_kind":"arxiv_version","alias_value":"1601.07529v3","created_at":"2026-07-05T02:52:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.07529","created_at":"2026-07-05T02:52:36Z"},{"alias_kind":"pith_short_12","alias_value":"4ZHYG5BYZPVT","created_at":"2026-07-05T02:52:36Z"},{"alias_kind":"pith_short_16","alias_value":"4ZHYG5BYZPVTAZN4","created_at":"2026-07-05T02:52:36Z"},{"alias_kind":"pith_short_8","alias_value":"4ZHYG5BY","created_at":"2026-07-05T02:52:36Z"}],"graph_snapshots":[{"event_id":"sha256:8b2485e52bd78802d6244d585413cee43039276db3d6d93b731764147273bea9","target":"graph","created_at":"2026-07-05T02:52:36Z","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/1601.07529/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We derive a Hamiltonian for an extended spinning test body in a curved background spacetime, to quadratic order in the spin, in terms of three-dimensional position, momentum, and spin variables having canonical Poisson brackets. This requires a careful analysis of how changes of the spin supplementary condition are related to shifts of the body's representative worldline and transformations of the body's multipole moments, and we employ bitensor calculus for a precise framing of this analysis. We apply the result to the case of the Kerr spacetime and thereby compute an explicit canonical Hamil","authors_text":"Daniela Kunst, Jan Steinhoff, Justin Vines, Tanja Hinderer","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-01-27T20:17:37Z","title":"Canonical Hamiltonian for an extended test body in curved spacetime: To quadratic order in spin"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.07529","kind":"arxiv","version":3},"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":"sha256:51c79364bb814ebadaeb55459354035e2c29837279acc47b7f55488cb0cc34a9","target":"record","created_at":"2026-07-05T02:52:36Z","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":"a5d8ad8ddfe395f85a50de65c84f17d55573a0753de1501c3d39e18b2520f674","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-01-27T20:17:37Z","title_canon_sha256":"e8292f44d495a094beff324343c021df8159b66a1277efcf3bbf7522f2c9f943"},"schema_version":"1.0","source":{"id":"1601.07529","kind":"arxiv","version":3}},"canonical_sha256":"e64f837438cbeb3065bc57aa95ab575f35929cc6ac1c0da8a808c5795b90e229","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e64f837438cbeb3065bc57aa95ab575f35929cc6ac1c0da8a808c5795b90e229","first_computed_at":"2026-07-05T02:52:36.431246Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:52:36.431246Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hGXjSxcVUT4hGscYaZOdYLxFC1U666x++7uhW7KHR1n0GqnLTNNvQPHpzm/lnHbWLM3UNGCJch7wL/LDh4WnDA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:52:36.431691Z","signed_message":"canonical_sha256_bytes"},"source_id":"1601.07529","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:51c79364bb814ebadaeb55459354035e2c29837279acc47b7f55488cb0cc34a9","sha256:8b2485e52bd78802d6244d585413cee43039276db3d6d93b731764147273bea9"],"state_sha256":"880861b47b2b9c1b7920f1122372c7357bbd9e2f87d7cd070c3230d7946df947"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F6Oj2rGY7h+Xg7U+MlTdrQSF5lqDC0z+kV90/9kKGpjWMdAzZxKNRTdsDjP9/cVYgGheW+RiO5+Pd7DHCBeEAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T04:02:48.346280Z","bundle_sha256":"ac5eae645e5b4cfe401ab97b08c9157c3a2bd98438837216d9a7395dac3f513e"}}