{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:HVP2WRUAASAUAWF5HOFKYCYQAA","short_pith_number":"pith:HVP2WRUA","canonical_record":{"source":{"id":"2607.14428","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-07-15T23:39:37Z","cross_cats_sorted":[],"title_canon_sha256":"b8ec9a7e75263dffd40427383fb9a9781efe3b5f7d6dc42356fa84f07a4d4c4d","abstract_canon_sha256":"0042eaf1eb0fc78d432d33af58cae421ca19bd172d68cef8829c252313f53715"},"schema_version":"1.0"},"canonical_sha256":"3d5fab468004814058bd3b8aac0b10003dd1c565ce08d74ca82c03bc695043be","source":{"kind":"arxiv","id":"2607.14428","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.14428","created_at":"2026-07-17T00:21:12Z"},{"alias_kind":"arxiv_version","alias_value":"2607.14428v1","created_at":"2026-07-17T00:21:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.14428","created_at":"2026-07-17T00:21:12Z"},{"alias_kind":"pith_short_12","alias_value":"HVP2WRUAASAU","created_at":"2026-07-17T00:21:12Z"},{"alias_kind":"pith_short_16","alias_value":"HVP2WRUAASAUAWF5","created_at":"2026-07-17T00:21:12Z"},{"alias_kind":"pith_short_8","alias_value":"HVP2WRUA","created_at":"2026-07-17T00:21:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:HVP2WRUAASAUAWF5HOFKYCYQAA","target":"record","payload":{"canonical_record":{"source":{"id":"2607.14428","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-07-15T23:39:37Z","cross_cats_sorted":[],"title_canon_sha256":"b8ec9a7e75263dffd40427383fb9a9781efe3b5f7d6dc42356fa84f07a4d4c4d","abstract_canon_sha256":"0042eaf1eb0fc78d432d33af58cae421ca19bd172d68cef8829c252313f53715"},"schema_version":"1.0"},"canonical_sha256":"3d5fab468004814058bd3b8aac0b10003dd1c565ce08d74ca82c03bc695043be","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-17T00:21:12.023563Z","signature_b64":"VAWBGoSaZzaaO29qDG2pOWjI5NE/dJIR4Cqtf+avqo/jJm2if+Nb/JHI9FoUNdRBIfm01T2Db6XIuJ8XoyMPBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3d5fab468004814058bd3b8aac0b10003dd1c565ce08d74ca82c03bc695043be","last_reissued_at":"2026-07-17T00:21:12.022743Z","signature_status":"signed_v1","first_computed_at":"2026-07-17T00:21:12.022743Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.14428","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":"2026-07-17T00:21:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5X6BlyQmhGLI6UnVt4koUXL7WV2HtqMQ30uiVu0IOqsRtPdJ9ZVBu/U53FN7RooxD4T3h4Qc6nKYZAaZHBDQAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-02T11:51:25.306312Z"},"content_sha256":"99b1b19d896841b92879b712f3acced6e6d6fc2fda5ea71dde6092c2b4c105ec","schema_version":"1.0","event_id":"sha256:99b1b19d896841b92879b712f3acced6e6d6fc2fda5ea71dde6092c2b4c105ec"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:HVP2WRUAASAUAWF5HOFKYCYQAA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Accurate proper motions of the protostellar system VLA1623-2417","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Aina Palau (IRyA-UNAM), BHI-Harvard), Carlos Carrasco-Gonz\\'alez (IRyA-UNAM), Claire J. Chandler (NRAO), Eleonora Bianchi (INAF), Isaac C. Radley (Leeds), Jazm\\'in Ord\\'o\\~nez-Toro (IRyA-UNAM), Johanan Ram\\'irez-Arellano (IRyA-UNAM), Laurent Loinard (IRyA-UNAM, Luis F. Rodr\\'iguez (IRyA-UNAM), Mar\\'ia Jos\\'e Maureira (MPE), Ricardo Hern\\'andez Garnica (IRyA-UNAM), Rosa M. Torres (CUCEI, UdG)","submitted_at":"2026-07-15T23:39:37Z","abstract_excerpt":"We present a detailed astrometric analysis of the quadruple protostellar system VLA1623-2417, deriving accurate absolute proper motions for components A, B, and W, as well as, for the first time, individual motions for the compact binary components of A (Aa and Ab). Our study combines 37 archival interferometric observations from the Atacama Large Millimeter/submillimeter Array (ALMA) and the Karl G. Jansky Very Large Array (VLA) at centimeter and millimeter wavelengths, supplemented with additional data from the Submillimeter Array (SMA) and the Berkeley-Illinois-Maryland Association (BIMA) m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.14428","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/2607.14428/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":"2026-07-17T00:21:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dZyCdfY9w8k9gOCCigF3lsXZlyz8sQAWoQ/hGlYmQ8tz00Vm3dPisTanHe+75v2aDcVn9qu6bpjm48BlULJ6Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-02T11:51:25.306871Z"},"content_sha256":"8b16fbbd3b1a81b74a5071df362e7f512198e6a319d1d53997d34ad58fc05729","schema_version":"1.0","event_id":"sha256:8b16fbbd3b1a81b74a5071df362e7f512198e6a319d1d53997d34ad58fc05729"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HVP2WRUAASAUAWF5HOFKYCYQAA/bundle.json","state_url":"https://pith.science/pith/HVP2WRUAASAUAWF5HOFKYCYQAA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HVP2WRUAASAUAWF5HOFKYCYQAA/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":"2026-08-02T11:51:25Z","links":{"resolver":"https://pith.science/pith/HVP2WRUAASAUAWF5HOFKYCYQAA","bundle":"https://pith.science/pith/HVP2WRUAASAUAWF5HOFKYCYQAA/bundle.json","state":"https://pith.science/pith/HVP2WRUAASAUAWF5HOFKYCYQAA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HVP2WRUAASAUAWF5HOFKYCYQAA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:HVP2WRUAASAUAWF5HOFKYCYQAA","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":"0042eaf1eb0fc78d432d33af58cae421ca19bd172d68cef8829c252313f53715","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-07-15T23:39:37Z","title_canon_sha256":"b8ec9a7e75263dffd40427383fb9a9781efe3b5f7d6dc42356fa84f07a4d4c4d"},"schema_version":"1.0","source":{"id":"2607.14428","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.14428","created_at":"2026-07-17T00:21:12Z"},{"alias_kind":"arxiv_version","alias_value":"2607.14428v1","created_at":"2026-07-17T00:21:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.14428","created_at":"2026-07-17T00:21:12Z"},{"alias_kind":"pith_short_12","alias_value":"HVP2WRUAASAU","created_at":"2026-07-17T00:21:12Z"},{"alias_kind":"pith_short_16","alias_value":"HVP2WRUAASAUAWF5","created_at":"2026-07-17T00:21:12Z"},{"alias_kind":"pith_short_8","alias_value":"HVP2WRUA","created_at":"2026-07-17T00:21:12Z"}],"graph_snapshots":[{"event_id":"sha256:8b16fbbd3b1a81b74a5071df362e7f512198e6a319d1d53997d34ad58fc05729","target":"graph","created_at":"2026-07-17T00:21:12Z","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/2607.14428/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a detailed astrometric analysis of the quadruple protostellar system VLA1623-2417, deriving accurate absolute proper motions for components A, B, and W, as well as, for the first time, individual motions for the compact binary components of A (Aa and Ab). Our study combines 37 archival interferometric observations from the Atacama Large Millimeter/submillimeter Array (ALMA) and the Karl G. Jansky Very Large Array (VLA) at centimeter and millimeter wavelengths, supplemented with additional data from the Submillimeter Array (SMA) and the Berkeley-Illinois-Maryland Association (BIMA) m","authors_text":"Aina Palau (IRyA-UNAM), BHI-Harvard), Carlos Carrasco-Gonz\\'alez (IRyA-UNAM), Claire J. Chandler (NRAO), Eleonora Bianchi (INAF), Isaac C. Radley (Leeds), Jazm\\'in Ord\\'o\\~nez-Toro (IRyA-UNAM), Johanan Ram\\'irez-Arellano (IRyA-UNAM), Laurent Loinard (IRyA-UNAM, Luis F. Rodr\\'iguez (IRyA-UNAM), Mar\\'ia Jos\\'e Maureira (MPE), Ricardo Hern\\'andez Garnica (IRyA-UNAM), Rosa M. Torres (CUCEI, UdG)","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-07-15T23:39:37Z","title":"Accurate proper motions of the protostellar system VLA1623-2417"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.14428","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":"sha256:99b1b19d896841b92879b712f3acced6e6d6fc2fda5ea71dde6092c2b4c105ec","target":"record","created_at":"2026-07-17T00:21:12Z","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":"0042eaf1eb0fc78d432d33af58cae421ca19bd172d68cef8829c252313f53715","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-07-15T23:39:37Z","title_canon_sha256":"b8ec9a7e75263dffd40427383fb9a9781efe3b5f7d6dc42356fa84f07a4d4c4d"},"schema_version":"1.0","source":{"id":"2607.14428","kind":"arxiv","version":1}},"canonical_sha256":"3d5fab468004814058bd3b8aac0b10003dd1c565ce08d74ca82c03bc695043be","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3d5fab468004814058bd3b8aac0b10003dd1c565ce08d74ca82c03bc695043be","first_computed_at":"2026-07-17T00:21:12.022743Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-17T00:21:12.022743Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VAWBGoSaZzaaO29qDG2pOWjI5NE/dJIR4Cqtf+avqo/jJm2if+Nb/JHI9FoUNdRBIfm01T2Db6XIuJ8XoyMPBw==","signature_status":"signed_v1","signed_at":"2026-07-17T00:21:12.023563Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.14428","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:99b1b19d896841b92879b712f3acced6e6d6fc2fda5ea71dde6092c2b4c105ec","sha256:8b16fbbd3b1a81b74a5071df362e7f512198e6a319d1d53997d34ad58fc05729"],"state_sha256":"1d9831313f548d7eaa0658d0144b7615d8a33fd9074aa235c25ad37b6405d2b3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Udg1xLVQtbvwagqXmXt5kSnV+zr3MM+F+QXkLYsCu1iFwEOOUDZ2T1BwO8BUcWLsxQRVVLmU9fpMSasHX9s0AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-02T11:51:25.310180Z","bundle_sha256":"1e2bb942d0412b82dfc9530b2ea1a147bfe832cf0bf2c1254637ccae0dad61e6"}}