{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:M5USYJAGVEDZQLFFDA6SKWXALK","short_pith_number":"pith:M5USYJAG","canonical_record":{"source":{"id":"2109.10671","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-09-22T12:03:34Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"4372da6d53736e0f39df76bb6c99ff81c911cf62e33a885b42bc2992b182c84c","abstract_canon_sha256":"612afd3e17ef036d88fd4f397cc19744bae9c843f9d8d5cd981c097fb62c8847"},"schema_version":"1.0"},"canonical_sha256":"67692c2406a907982ca5183d255ae05a8a3a644b16572f886468b77bf192d1fb","source":{"kind":"arxiv","id":"2109.10671","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.10671","created_at":"2026-07-05T03:22:00Z"},{"alias_kind":"arxiv_version","alias_value":"2109.10671v1","created_at":"2026-07-05T03:22:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.10671","created_at":"2026-07-05T03:22:00Z"},{"alias_kind":"pith_short_12","alias_value":"M5USYJAGVEDZ","created_at":"2026-07-05T03:22:00Z"},{"alias_kind":"pith_short_16","alias_value":"M5USYJAGVEDZQLFF","created_at":"2026-07-05T03:22:00Z"},{"alias_kind":"pith_short_8","alias_value":"M5USYJAG","created_at":"2026-07-05T03:22:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:M5USYJAGVEDZQLFFDA6SKWXALK","target":"record","payload":{"canonical_record":{"source":{"id":"2109.10671","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-09-22T12:03:34Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"4372da6d53736e0f39df76bb6c99ff81c911cf62e33a885b42bc2992b182c84c","abstract_canon_sha256":"612afd3e17ef036d88fd4f397cc19744bae9c843f9d8d5cd981c097fb62c8847"},"schema_version":"1.0"},"canonical_sha256":"67692c2406a907982ca5183d255ae05a8a3a644b16572f886468b77bf192d1fb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:22:00.858061Z","signature_b64":"0p4UncuAGnyQDSxpzqWtGFRTmPPVe5M6o8dNUOZ6wDi9VfNA3mNsZrNM7LXTYiiRkAajW38eIMma+zGr+EhdCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"67692c2406a907982ca5183d255ae05a8a3a644b16572f886468b77bf192d1fb","last_reissued_at":"2026-07-05T03:22:00.857630Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:22:00.857630Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2109.10671","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":"2026-07-05T03:22:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UXmaz+5fPbANTpE1s9Wn2G0QKBxF1tBpoLVc/49RJLcgEHJVCnOROZRvu8caeMVWqxLRrPStP1bW+Ni1gGEkDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-11T11:21:32.357801Z"},"content_sha256":"8e3886a1a0168f672be3ddc297b921daaedc57013155b09bf8e17b906a05b8fc","schema_version":"1.0","event_id":"sha256:8e3886a1a0168f672be3ddc297b921daaedc57013155b09bf8e17b906a05b8fc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:M5USYJAGVEDZQLFFDA6SKWXALK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The mass of Beta Pictoris c from Beta Pictoris b orbital motion","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.EP","authors_text":"A. Amorim, A. Boccaletti, A. Bohn, A. Cridland, A. Drescher, A. Eckart, A.-L. Maire, A. M\\'erand, A.-M. Lagrange, A. Vigan, A. Young, B. Charnay, C. Paladini, C. Straubmeier, D. Lutz, D. Mouillet, D. Sing, E. Choquet, E.F. van Dishoeck, E. Gendron, E. Nasedkin, E. Rickman, E. Sturm, E. Wieprecht, E. Wiezorrek, F. Cantalloube, F. Eisenhauer, F. Gao, F. Vincent, F. Widmann, G. Bourdarot, G. Chauvin, G. Duvert, G. Hei{\\ss}el, G. Perrin, G. P. P. L. Otten, G. Rousset, H. Beust, H. Bonnet, J.-B. Le Bouquin, J. Dexter, J. D. Monnier, J. H. Girard, J. J. Wang, J. Kammerer, J.-P. Berger, J. Rameau, J. Shangguan, J. Stadler, J. Woillez, K. Perraut, K. Ward-Duong, L. Jocou, L. J. Tacconi, L. Kreidberg, L. Pueyo, L. Rodet, M. Benisty, M. Bonnefoy, M. Horrobin, M. Houll\\'e, M. Keppler, M.-L. Bolzer, M. Nowak, M. Samland, O. Pfuhl, O. Straub, P. Caselli, P. Garcia, P. Kervella, P. L\\'ena, P. Molli\\`ere, P. T. de Zeeuw, R. Abuter, R. Asensio-Torres, R. Dembet, R. Garcia Lopez, R. Genzel, S. Blunt, S. D. von Fellenberg, S. Gillessen, S. Hinkley, S. Hippler, S. Lacour, S. Yazici, the GRAVITY collaboration, Th. Henning, T. Ott, T. Paumard, T. Shimizu, T. Stolker, V. Christiaens, V. Coud\\'e du Foresto, V. Lapeyr\\`ere, W. Brandner, X. Haubois, Y. Cl\\'enet, Z. Hubert, Z. Rustamkulov","submitted_at":"2021-09-22T12:03:34Z","abstract_excerpt":"We aim to demonstrate that the presence and mass of an exoplanet can now be effectively derived from the astrometry of another exoplanet. We combined previous astrometry of $\\beta$ Pictoris b with a new set of observations from the GRAVITY interferometer. The orbital motion of $\\beta$ Pictoris b is fit using Markov chain Monte Carlo simulations in Jacobi coordinates. The inner planet, $\\beta$ Pictoris c, was also reobserved at a separation of 96\\,mas, confirming the previous orbital estimations. From the astrometry of planet b only, we can (i) detect the presence of $\\beta$ Pictoris c and (ii)"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.10671","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2109.10671/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":"2026-07-05T03:22:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WecSQrd9D/elUZm1mBbmAyTj6EPPUlN0dZiFzS2soME4h80LBKCzI83CQisqsdGkgdXK41CPSm8doKaveGtiAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-11T11:21:32.358186Z"},"content_sha256":"f28b592601f7e6e26243afa501cea5728d6eca13511d8c89cb01d8dcb3208b5e","schema_version":"1.0","event_id":"sha256:f28b592601f7e6e26243afa501cea5728d6eca13511d8c89cb01d8dcb3208b5e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/M5USYJAGVEDZQLFFDA6SKWXALK/bundle.json","state_url":"https://pith.science/pith/M5USYJAGVEDZQLFFDA6SKWXALK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/M5USYJAGVEDZQLFFDA6SKWXALK/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":"2026-07-11T11:21:32Z","links":{"resolver":"https://pith.science/pith/M5USYJAGVEDZQLFFDA6SKWXALK","bundle":"https://pith.science/pith/M5USYJAGVEDZQLFFDA6SKWXALK/bundle.json","state":"https://pith.science/pith/M5USYJAGVEDZQLFFDA6SKWXALK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/M5USYJAGVEDZQLFFDA6SKWXALK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:M5USYJAGVEDZQLFFDA6SKWXALK","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":"612afd3e17ef036d88fd4f397cc19744bae9c843f9d8d5cd981c097fb62c8847","cross_cats_sorted":["astro-ph.IM"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-09-22T12:03:34Z","title_canon_sha256":"4372da6d53736e0f39df76bb6c99ff81c911cf62e33a885b42bc2992b182c84c"},"schema_version":"1.0","source":{"id":"2109.10671","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.10671","created_at":"2026-07-05T03:22:00Z"},{"alias_kind":"arxiv_version","alias_value":"2109.10671v1","created_at":"2026-07-05T03:22:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.10671","created_at":"2026-07-05T03:22:00Z"},{"alias_kind":"pith_short_12","alias_value":"M5USYJAGVEDZ","created_at":"2026-07-05T03:22:00Z"},{"alias_kind":"pith_short_16","alias_value":"M5USYJAGVEDZQLFF","created_at":"2026-07-05T03:22:00Z"},{"alias_kind":"pith_short_8","alias_value":"M5USYJAG","created_at":"2026-07-05T03:22:00Z"}],"graph_snapshots":[{"event_id":"sha256:f28b592601f7e6e26243afa501cea5728d6eca13511d8c89cb01d8dcb3208b5e","target":"graph","created_at":"2026-07-05T03:22:00Z","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/2109.10671/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We aim to demonstrate that the presence and mass of an exoplanet can now be effectively derived from the astrometry of another exoplanet. We combined previous astrometry of $\\beta$ Pictoris b with a new set of observations from the GRAVITY interferometer. The orbital motion of $\\beta$ Pictoris b is fit using Markov chain Monte Carlo simulations in Jacobi coordinates. The inner planet, $\\beta$ Pictoris c, was also reobserved at a separation of 96\\,mas, confirming the previous orbital estimations. From the astrometry of planet b only, we can (i) detect the presence of $\\beta$ Pictoris c and (ii)","authors_text":"A. Amorim, A. Boccaletti, A. Bohn, A. Cridland, A. Drescher, A. Eckart, A.-L. Maire, A. M\\'erand, A.-M. Lagrange, A. Vigan, A. Young, B. Charnay, C. Paladini, C. Straubmeier, D. Lutz, D. Mouillet, D. Sing, E. Choquet, E.F. van Dishoeck, E. Gendron, E. Nasedkin, E. Rickman, E. Sturm, E. Wieprecht, E. Wiezorrek, F. Cantalloube, F. Eisenhauer, F. Gao, F. Vincent, F. Widmann, G. Bourdarot, G. Chauvin, G. Duvert, G. Hei{\\ss}el, G. Perrin, G. P. P. L. Otten, G. Rousset, H. Beust, H. Bonnet, J.-B. Le Bouquin, J. Dexter, J. D. Monnier, J. H. Girard, J. J. Wang, J. Kammerer, J.-P. Berger, J. Rameau, J. Shangguan, J. Stadler, J. Woillez, K. Perraut, K. Ward-Duong, L. Jocou, L. J. Tacconi, L. Kreidberg, L. Pueyo, L. Rodet, M. Benisty, M. Bonnefoy, M. Horrobin, M. Houll\\'e, M. Keppler, M.-L. Bolzer, M. Nowak, M. Samland, O. Pfuhl, O. Straub, P. Caselli, P. Garcia, P. Kervella, P. L\\'ena, P. Molli\\`ere, P. T. de Zeeuw, R. Abuter, R. Asensio-Torres, R. Dembet, R. Garcia Lopez, R. Genzel, S. Blunt, S. D. von Fellenberg, S. Gillessen, S. Hinkley, S. Hippler, S. Lacour, S. Yazici, the GRAVITY collaboration, Th. Henning, T. Ott, T. Paumard, T. Shimizu, T. Stolker, V. Christiaens, V. Coud\\'e du Foresto, V. Lapeyr\\`ere, W. Brandner, X. Haubois, Y. Cl\\'enet, Z. Hubert, Z. Rustamkulov","cross_cats":["astro-ph.IM"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-09-22T12:03:34Z","title":"The mass of Beta Pictoris c from Beta Pictoris b orbital motion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.10671","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":"sha256:8e3886a1a0168f672be3ddc297b921daaedc57013155b09bf8e17b906a05b8fc","target":"record","created_at":"2026-07-05T03:22:00Z","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":"612afd3e17ef036d88fd4f397cc19744bae9c843f9d8d5cd981c097fb62c8847","cross_cats_sorted":["astro-ph.IM"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-09-22T12:03:34Z","title_canon_sha256":"4372da6d53736e0f39df76bb6c99ff81c911cf62e33a885b42bc2992b182c84c"},"schema_version":"1.0","source":{"id":"2109.10671","kind":"arxiv","version":1}},"canonical_sha256":"67692c2406a907982ca5183d255ae05a8a3a644b16572f886468b77bf192d1fb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"67692c2406a907982ca5183d255ae05a8a3a644b16572f886468b77bf192d1fb","first_computed_at":"2026-07-05T03:22:00.857630Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:22:00.857630Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0p4UncuAGnyQDSxpzqWtGFRTmPPVe5M6o8dNUOZ6wDi9VfNA3mNsZrNM7LXTYiiRkAajW38eIMma+zGr+EhdCw==","signature_status":"signed_v1","signed_at":"2026-07-05T03:22:00.858061Z","signed_message":"canonical_sha256_bytes"},"source_id":"2109.10671","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8e3886a1a0168f672be3ddc297b921daaedc57013155b09bf8e17b906a05b8fc","sha256:f28b592601f7e6e26243afa501cea5728d6eca13511d8c89cb01d8dcb3208b5e"],"state_sha256":"bcee37f69a371256eedc9b3c20ae87706444648e4fd9e6bddba283becc1f81f5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UIextz54Pq8iaOh6t7VBvhcmQwEug9spC168BcPuKg8SI/MEFSxhh3FTLfs5PGNSKXu1RQKTMOiTAI22DmQ2AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-11T11:21:32.360366Z","bundle_sha256":"fc1a56ad4a7952caad14a27328b0b2dea373d1d41c08a1a8cab333d6f084a0ca"}}