{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:XN3X26QSYWW7DHC4JR7BXXGY4F","short_pith_number":"pith:XN3X26QS","canonical_record":{"source":{"id":"1604.04414","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2016-04-15T09:45:49Z","cross_cats_sorted":["physics.space-ph"],"title_canon_sha256":"b7fcd6838cc647e9f245872aba16bbbefa8a354b77d1f5a1f322a177d45b0768","abstract_canon_sha256":"cfa8022d3abf983bdac4809fa4b03ec17001e569e140ab73081e67f8641f8214"},"schema_version":"1.0"},"canonical_sha256":"bb777d7a12c5adf19c5c4c7e1bdcd8e158818e57a0d20a4e97abcfa2439f8d6e","source":{"kind":"arxiv","id":"1604.04414","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.04414","created_at":"2026-05-18T01:16:59Z"},{"alias_kind":"arxiv_version","alias_value":"1604.04414v2","created_at":"2026-05-18T01:16:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.04414","created_at":"2026-05-18T01:16:59Z"},{"alias_kind":"pith_short_12","alias_value":"XN3X26QSYWW7","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_16","alias_value":"XN3X26QSYWW7DHC4","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_8","alias_value":"XN3X26QS","created_at":"2026-05-18T12:30:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:XN3X26QSYWW7DHC4JR7BXXGY4F","target":"record","payload":{"canonical_record":{"source":{"id":"1604.04414","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2016-04-15T09:45:49Z","cross_cats_sorted":["physics.space-ph"],"title_canon_sha256":"b7fcd6838cc647e9f245872aba16bbbefa8a354b77d1f5a1f322a177d45b0768","abstract_canon_sha256":"cfa8022d3abf983bdac4809fa4b03ec17001e569e140ab73081e67f8641f8214"},"schema_version":"1.0"},"canonical_sha256":"bb777d7a12c5adf19c5c4c7e1bdcd8e158818e57a0d20a4e97abcfa2439f8d6e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:16:59.131518Z","signature_b64":"aRMSxxBK8Sm9zYsn8gqh20g70LyKR6ZnAHhCdcYjTe8uMoch/K5QUzdr9MMMihqzrGwOCRY809bSoRnraeMEAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bb777d7a12c5adf19c5c4c7e1bdcd8e158818e57a0d20a4e97abcfa2439f8d6e","last_reissued_at":"2026-05-18T01:16:59.130912Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:16:59.130912Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1604.04414","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":"2026-05-18T01:16:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"97XrGi3KFsK2MugeXu5BOXCA5RMHqXjMXrRU55yWSuitDAWhplOHNdRNJTWQe4BMIu3oKcDli4XofxlGWI8TCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T03:58:26.839413Z"},"content_sha256":"a5a4e5263958d2dfbb717e8f4d9da5b68458423988a9ee044a5d32d7a01d2303","schema_version":"1.0","event_id":"sha256:a5a4e5263958d2dfbb717e8f4d9da5b68458423988a9ee044a5d32d7a01d2303"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:XN3X26QSYWW7DHC4JR7BXXGY4F","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Partial reconstruction of the rotational motion of Philae spacecraft during its landing on comet 67P/Churyumov-Gerasimenko","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.space-ph"],"primary_cat":"physics.class-ph","authors_text":"Andr\\'as Bal\\'azs, P\\'eter L. V\\'arkonyi, Tam\\'as Baranyai","submitted_at":"2016-04-15T09:45:49Z","abstract_excerpt":"This paper presents a partial reconstruction of the rotational dynamics of the Philae spacecraft upon landing on comet 67P/Churyumov-Gerasimenko as part of ESA's Rosetta mission. We analyze the motion and the events triggered by the failure to fix the spacecraft to the comet surface at the time of the first touchdown. Dynamic trajectories obtained by numerical simulation of a 7 degree-of-freedom mechanical model of the spacecraft are fitted to directions of incoming solar radiation inferred from in-situ measurements of the electric power provided by the solar panels. The results include a lowe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.04414","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":"2026-05-18T01:16:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ipztDK1RbBU1mLhKWFp+kF4Har7elCcWXpQ4O8WKIl6OMsLBP5nw8VfmZ1pxcAUmUy7+rqm5UYwW9IgkgjbdBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T03:58:26.840122Z"},"content_sha256":"81f8039b6d1583c780498f75f8509cf20fb369f7a2dd859086f95119f0bb3dcd","schema_version":"1.0","event_id":"sha256:81f8039b6d1583c780498f75f8509cf20fb369f7a2dd859086f95119f0bb3dcd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XN3X26QSYWW7DHC4JR7BXXGY4F/bundle.json","state_url":"https://pith.science/pith/XN3X26QSYWW7DHC4JR7BXXGY4F/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XN3X26QSYWW7DHC4JR7BXXGY4F/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":"2026-06-09T03:58:26Z","links":{"resolver":"https://pith.science/pith/XN3X26QSYWW7DHC4JR7BXXGY4F","bundle":"https://pith.science/pith/XN3X26QSYWW7DHC4JR7BXXGY4F/bundle.json","state":"https://pith.science/pith/XN3X26QSYWW7DHC4JR7BXXGY4F/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XN3X26QSYWW7DHC4JR7BXXGY4F/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:XN3X26QSYWW7DHC4JR7BXXGY4F","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":"cfa8022d3abf983bdac4809fa4b03ec17001e569e140ab73081e67f8641f8214","cross_cats_sorted":["physics.space-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2016-04-15T09:45:49Z","title_canon_sha256":"b7fcd6838cc647e9f245872aba16bbbefa8a354b77d1f5a1f322a177d45b0768"},"schema_version":"1.0","source":{"id":"1604.04414","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.04414","created_at":"2026-05-18T01:16:59Z"},{"alias_kind":"arxiv_version","alias_value":"1604.04414v2","created_at":"2026-05-18T01:16:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.04414","created_at":"2026-05-18T01:16:59Z"},{"alias_kind":"pith_short_12","alias_value":"XN3X26QSYWW7","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_16","alias_value":"XN3X26QSYWW7DHC4","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_8","alias_value":"XN3X26QS","created_at":"2026-05-18T12:30:51Z"}],"graph_snapshots":[{"event_id":"sha256:81f8039b6d1583c780498f75f8509cf20fb369f7a2dd859086f95119f0bb3dcd","target":"graph","created_at":"2026-05-18T01:16:59Z","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":"This paper presents a partial reconstruction of the rotational dynamics of the Philae spacecraft upon landing on comet 67P/Churyumov-Gerasimenko as part of ESA's Rosetta mission. We analyze the motion and the events triggered by the failure to fix the spacecraft to the comet surface at the time of the first touchdown. Dynamic trajectories obtained by numerical simulation of a 7 degree-of-freedom mechanical model of the spacecraft are fitted to directions of incoming solar radiation inferred from in-situ measurements of the electric power provided by the solar panels. The results include a lowe","authors_text":"Andr\\'as Bal\\'azs, P\\'eter L. V\\'arkonyi, Tam\\'as Baranyai","cross_cats":["physics.space-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2016-04-15T09:45:49Z","title":"Partial reconstruction of the rotational motion of Philae spacecraft during its landing on comet 67P/Churyumov-Gerasimenko"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.04414","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:a5a4e5263958d2dfbb717e8f4d9da5b68458423988a9ee044a5d32d7a01d2303","target":"record","created_at":"2026-05-18T01:16:59Z","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":"cfa8022d3abf983bdac4809fa4b03ec17001e569e140ab73081e67f8641f8214","cross_cats_sorted":["physics.space-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2016-04-15T09:45:49Z","title_canon_sha256":"b7fcd6838cc647e9f245872aba16bbbefa8a354b77d1f5a1f322a177d45b0768"},"schema_version":"1.0","source":{"id":"1604.04414","kind":"arxiv","version":2}},"canonical_sha256":"bb777d7a12c5adf19c5c4c7e1bdcd8e158818e57a0d20a4e97abcfa2439f8d6e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bb777d7a12c5adf19c5c4c7e1bdcd8e158818e57a0d20a4e97abcfa2439f8d6e","first_computed_at":"2026-05-18T01:16:59.130912Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:16:59.130912Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aRMSxxBK8Sm9zYsn8gqh20g70LyKR6ZnAHhCdcYjTe8uMoch/K5QUzdr9MMMihqzrGwOCRY809bSoRnraeMEAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:16:59.131518Z","signed_message":"canonical_sha256_bytes"},"source_id":"1604.04414","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a5a4e5263958d2dfbb717e8f4d9da5b68458423988a9ee044a5d32d7a01d2303","sha256:81f8039b6d1583c780498f75f8509cf20fb369f7a2dd859086f95119f0bb3dcd"],"state_sha256":"c6ce39e89a2033c9307651b1dce9b0e2f9db475f0276d917c4cc428b42fd6c7a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iM9OSm1tn5gNpoc09/SBa4cTfS8sskumgmXnPzEhgfxP503lJpi3prHWVyhW8lj1mvr2vBYvaUptnZIjOBz4CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T03:58:26.844892Z","bundle_sha256":"674311d7a5730e727c21d1a10b3ebb780667d146469b88a60266076cfff95978"}}