{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:MO7TBVO3LU4MVW7J7M25ZYKMCE","short_pith_number":"pith:MO7TBVO3","canonical_record":{"source":{"id":"1403.6033","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-03-24T16:47:30Z","cross_cats_sorted":[],"title_canon_sha256":"f3f8b6ece63a83a17d15cd2e4177ba7cae90dd13c02897865cd1087a5b8ba78d","abstract_canon_sha256":"1438bbff36176f467924b09c1a7b219a3f366912bd207474614878a538376ce7"},"schema_version":"1.0"},"canonical_sha256":"63bf30d5db5d38cadbe9fb35dce14c111f827236be1714dfad82f4cb1d504ecd","source":{"kind":"arxiv","id":"1403.6033","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.6033","created_at":"2026-05-18T02:41:10Z"},{"alias_kind":"arxiv_version","alias_value":"1403.6033v2","created_at":"2026-05-18T02:41:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.6033","created_at":"2026-05-18T02:41:10Z"},{"alias_kind":"pith_short_12","alias_value":"MO7TBVO3LU4M","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_16","alias_value":"MO7TBVO3LU4MVW7J","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_8","alias_value":"MO7TBVO3","created_at":"2026-05-18T12:28:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:MO7TBVO3LU4MVW7J7M25ZYKMCE","target":"record","payload":{"canonical_record":{"source":{"id":"1403.6033","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-03-24T16:47:30Z","cross_cats_sorted":[],"title_canon_sha256":"f3f8b6ece63a83a17d15cd2e4177ba7cae90dd13c02897865cd1087a5b8ba78d","abstract_canon_sha256":"1438bbff36176f467924b09c1a7b219a3f366912bd207474614878a538376ce7"},"schema_version":"1.0"},"canonical_sha256":"63bf30d5db5d38cadbe9fb35dce14c111f827236be1714dfad82f4cb1d504ecd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:41:10.125929Z","signature_b64":"uBd0uOtb5fWnuKFgn7B+EsqACP2LVUeUeM+X6VFrFoaZujWuypVZkPVxykRR9Cn8f57cFtJPp8dam0njSMXyDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"63bf30d5db5d38cadbe9fb35dce14c111f827236be1714dfad82f4cb1d504ecd","last_reissued_at":"2026-05-18T02:41:10.125526Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:41:10.125526Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1403.6033","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":"2026-05-18T02:41:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MxfueFtWpTwYli7jnie/wGgbsFtPjIbohTQxlWoQnetZhPrJ51j2QBH2Q2i3uCCpiS0GyV+8IZApCM3hup9/Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T04:11:52.219085Z"},"content_sha256":"c0a66e6d1d6a7e46821953a06831c3ca3eb5eddccfaa598599f558f0b467c1d9","schema_version":"1.0","event_id":"sha256:c0a66e6d1d6a7e46821953a06831c3ca3eb5eddccfaa598599f558f0b467c1d9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:MO7TBVO3LU4MVW7J7M25ZYKMCE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Radiation pressure detection and density estimate for 2011 MD","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"David J. Tholen, Garrett T. Elliott, Marco Micheli","submitted_at":"2014-03-24T16:47:30Z","abstract_excerpt":"We present our astrometric observations of the small near-Earth object 2011~MD ($H \\sim 28.0$), obtained after its very close fly-by to Earth in June 2011. Our set of observations extends the observational arc to $73$ days, and together with the published astrometry obtained around the Earth fly-by allows a direct detection of the effect of radiation pressure on the object, with a confidence of $5\\sigma$. The detection can be used to put constraints on the density of the object, pointing to either an unexpectedly low value of $\\rho = (640 \\pm 330) \\mbox{ kg} / \\mbox{m} ^3$ ($68\\%$ confidence i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.6033","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":"2026-05-18T02:41:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ssR9/WOIP5XQ9q0PN0ReybAtdVrfof1XJ2NDC9zJpxRYnIVPcy0BaLToM/yl4RUNtK39or1vnD9wn2n7lMRZBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T04:11:52.219447Z"},"content_sha256":"177ba392acbfcf3bd3af8d80460a21b301f915610902ac33d42eab68e28ece05","schema_version":"1.0","event_id":"sha256:177ba392acbfcf3bd3af8d80460a21b301f915610902ac33d42eab68e28ece05"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MO7TBVO3LU4MVW7J7M25ZYKMCE/bundle.json","state_url":"https://pith.science/pith/MO7TBVO3LU4MVW7J7M25ZYKMCE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MO7TBVO3LU4MVW7J7M25ZYKMCE/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":"2026-05-28T04:11:52Z","links":{"resolver":"https://pith.science/pith/MO7TBVO3LU4MVW7J7M25ZYKMCE","bundle":"https://pith.science/pith/MO7TBVO3LU4MVW7J7M25ZYKMCE/bundle.json","state":"https://pith.science/pith/MO7TBVO3LU4MVW7J7M25ZYKMCE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MO7TBVO3LU4MVW7J7M25ZYKMCE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:MO7TBVO3LU4MVW7J7M25ZYKMCE","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":"1438bbff36176f467924b09c1a7b219a3f366912bd207474614878a538376ce7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-03-24T16:47:30Z","title_canon_sha256":"f3f8b6ece63a83a17d15cd2e4177ba7cae90dd13c02897865cd1087a5b8ba78d"},"schema_version":"1.0","source":{"id":"1403.6033","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.6033","created_at":"2026-05-18T02:41:10Z"},{"alias_kind":"arxiv_version","alias_value":"1403.6033v2","created_at":"2026-05-18T02:41:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.6033","created_at":"2026-05-18T02:41:10Z"},{"alias_kind":"pith_short_12","alias_value":"MO7TBVO3LU4M","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_16","alias_value":"MO7TBVO3LU4MVW7J","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_8","alias_value":"MO7TBVO3","created_at":"2026-05-18T12:28:38Z"}],"graph_snapshots":[{"event_id":"sha256:177ba392acbfcf3bd3af8d80460a21b301f915610902ac33d42eab68e28ece05","target":"graph","created_at":"2026-05-18T02:41:10Z","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 present our astrometric observations of the small near-Earth object 2011~MD ($H \\sim 28.0$), obtained after its very close fly-by to Earth in June 2011. Our set of observations extends the observational arc to $73$ days, and together with the published astrometry obtained around the Earth fly-by allows a direct detection of the effect of radiation pressure on the object, with a confidence of $5\\sigma$. The detection can be used to put constraints on the density of the object, pointing to either an unexpectedly low value of $\\rho = (640 \\pm 330) \\mbox{ kg} / \\mbox{m} ^3$ ($68\\%$ confidence i","authors_text":"David J. Tholen, Garrett T. Elliott, Marco Micheli","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-03-24T16:47:30Z","title":"Radiation pressure detection and density estimate for 2011 MD"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.6033","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:c0a66e6d1d6a7e46821953a06831c3ca3eb5eddccfaa598599f558f0b467c1d9","target":"record","created_at":"2026-05-18T02:41:10Z","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":"1438bbff36176f467924b09c1a7b219a3f366912bd207474614878a538376ce7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-03-24T16:47:30Z","title_canon_sha256":"f3f8b6ece63a83a17d15cd2e4177ba7cae90dd13c02897865cd1087a5b8ba78d"},"schema_version":"1.0","source":{"id":"1403.6033","kind":"arxiv","version":2}},"canonical_sha256":"63bf30d5db5d38cadbe9fb35dce14c111f827236be1714dfad82f4cb1d504ecd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"63bf30d5db5d38cadbe9fb35dce14c111f827236be1714dfad82f4cb1d504ecd","first_computed_at":"2026-05-18T02:41:10.125526Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:41:10.125526Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uBd0uOtb5fWnuKFgn7B+EsqACP2LVUeUeM+X6VFrFoaZujWuypVZkPVxykRR9Cn8f57cFtJPp8dam0njSMXyDw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:41:10.125929Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.6033","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c0a66e6d1d6a7e46821953a06831c3ca3eb5eddccfaa598599f558f0b467c1d9","sha256:177ba392acbfcf3bd3af8d80460a21b301f915610902ac33d42eab68e28ece05"],"state_sha256":"87df6770a0f684c46e57f479af06f1a945524d9d645aa3f1d0be5e99688480c3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HOanNnsNmQZWTYUnp4O+WeHRybFiWqDITETo8/ap68CLyuRZs6+6jXaLxRIYAwTgtWgdPKFT9qDQsXWLmsGeAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T04:11:52.221559Z","bundle_sha256":"3264fa6bb192247ce94c29cc6577f1f7fb9b1c1e71c351230712b6e1fd155e31"}}