{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:S65ZLJ263T2OCRGRN5E3SH36FB","short_pith_number":"pith:S65ZLJ26","canonical_record":{"source":{"id":"1703.05775","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-03-16T18:03:08Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"dd2e03ee377f18b8de66b035663638161eed0c5f77e4c00703ce33a61003dda1","abstract_canon_sha256":"9211a434e6262c893183a6ff1069bfc64e4b3bb45c4444c27d167847cbbe9413"},"schema_version":"1.0"},"canonical_sha256":"97bb95a75edcf4e144d16f49b91f7e287ddabd61866d7c5018c770226da3ef00","source":{"kind":"arxiv","id":"1703.05775","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.05775","created_at":"2026-05-18T00:38:28Z"},{"alias_kind":"arxiv_version","alias_value":"1703.05775v2","created_at":"2026-05-18T00:38:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.05775","created_at":"2026-05-18T00:38:28Z"},{"alias_kind":"pith_short_12","alias_value":"S65ZLJ263T2O","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"S65ZLJ263T2OCRGR","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"S65ZLJ26","created_at":"2026-05-18T12:31:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:S65ZLJ263T2OCRGRN5E3SH36FB","target":"record","payload":{"canonical_record":{"source":{"id":"1703.05775","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-03-16T18:03:08Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"dd2e03ee377f18b8de66b035663638161eed0c5f77e4c00703ce33a61003dda1","abstract_canon_sha256":"9211a434e6262c893183a6ff1069bfc64e4b3bb45c4444c27d167847cbbe9413"},"schema_version":"1.0"},"canonical_sha256":"97bb95a75edcf4e144d16f49b91f7e287ddabd61866d7c5018c770226da3ef00","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:38:28.075510Z","signature_b64":"NpB0aMYPYUHC1lL1Iu/eTQ6AxWQDl15VK/snEzbIt11ezv/3zPaykZXrugGVC0aLly57d8LSPObUPqBaFFU9AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"97bb95a75edcf4e144d16f49b91f7e287ddabd61866d7c5018c770226da3ef00","last_reissued_at":"2026-05-18T00:38:28.074914Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:38:28.074914Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1703.05775","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":"2026-05-18T00:38:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"27Gr81tJATK17+vsVD4iZARaM2ERMm0Lg0vH/otPWGkh3OOWUzrwJZdFEeWiLpjqeS4/WeFxBDhx1D3KSh9iCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T14:47:24.687354Z"},"content_sha256":"bcc6659252bf1e1d79a01ea7f74e11eb86cd51b6284539698ed2f6f2094e4e1d","schema_version":"1.0","event_id":"sha256:bcc6659252bf1e1d79a01ea7f74e11eb86cd51b6284539698ed2f6f2094e4e1d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:S65ZLJ263T2OCRGRN5E3SH36FB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Individual Dynamical Masses of Ultracool Dwarfs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Michael C. Liu (IfA/Hawaii), Trent J. Dupuy (UT Austin)","submitted_at":"2017-03-16T18:03:08Z","abstract_excerpt":"We present the full results of our decade-long astrometric monitoring programs targeting 31 ultracool binaries with component spectral types M7-T5. Joint analysis of resolved imaging from Keck Observatory and Hubble Space Telescope and unresolved astrometry from CFHT/WIRCam yields parallactic distances for all systems, robust orbit determinations for 23 systems, and photocenter orbits for 19 systems. As a result, we measure 38 precise individual masses spanning 30-115 $M_{\\rm Jup}$. We determine a model-independent substellar boundary that is $\\approx$70 $M_{\\rm Jup}$ in mass ($\\approx$L4 in s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.05775","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":"2026-05-18T00:38:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"On+eWhhGbQhuZx+dDmYE+Xbyn++uDb2Pa3PQMkqVY8C0Bgc8sv6ITW6C4qUk/v+53NDPdzPOIXFA11gVTFk/Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T14:47:24.688056Z"},"content_sha256":"154bacd7965a7e2a700b34b692a59bebfed14467a0bc203e7c996aa3cb557e24","schema_version":"1.0","event_id":"sha256:154bacd7965a7e2a700b34b692a59bebfed14467a0bc203e7c996aa3cb557e24"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/S65ZLJ263T2OCRGRN5E3SH36FB/bundle.json","state_url":"https://pith.science/pith/S65ZLJ263T2OCRGRN5E3SH36FB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/S65ZLJ263T2OCRGRN5E3SH36FB/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":"2026-06-06T14:47:24Z","links":{"resolver":"https://pith.science/pith/S65ZLJ263T2OCRGRN5E3SH36FB","bundle":"https://pith.science/pith/S65ZLJ263T2OCRGRN5E3SH36FB/bundle.json","state":"https://pith.science/pith/S65ZLJ263T2OCRGRN5E3SH36FB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/S65ZLJ263T2OCRGRN5E3SH36FB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:S65ZLJ263T2OCRGRN5E3SH36FB","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":"9211a434e6262c893183a6ff1069bfc64e4b3bb45c4444c27d167847cbbe9413","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-03-16T18:03:08Z","title_canon_sha256":"dd2e03ee377f18b8de66b035663638161eed0c5f77e4c00703ce33a61003dda1"},"schema_version":"1.0","source":{"id":"1703.05775","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.05775","created_at":"2026-05-18T00:38:28Z"},{"alias_kind":"arxiv_version","alias_value":"1703.05775v2","created_at":"2026-05-18T00:38:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.05775","created_at":"2026-05-18T00:38:28Z"},{"alias_kind":"pith_short_12","alias_value":"S65ZLJ263T2O","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"S65ZLJ263T2OCRGR","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"S65ZLJ26","created_at":"2026-05-18T12:31:43Z"}],"graph_snapshots":[{"event_id":"sha256:154bacd7965a7e2a700b34b692a59bebfed14467a0bc203e7c996aa3cb557e24","target":"graph","created_at":"2026-05-18T00:38:28Z","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 the full results of our decade-long astrometric monitoring programs targeting 31 ultracool binaries with component spectral types M7-T5. Joint analysis of resolved imaging from Keck Observatory and Hubble Space Telescope and unresolved astrometry from CFHT/WIRCam yields parallactic distances for all systems, robust orbit determinations for 23 systems, and photocenter orbits for 19 systems. As a result, we measure 38 precise individual masses spanning 30-115 $M_{\\rm Jup}$. We determine a model-independent substellar boundary that is $\\approx$70 $M_{\\rm Jup}$ in mass ($\\approx$L4 in s","authors_text":"Michael C. Liu (IfA/Hawaii), Trent J. Dupuy (UT Austin)","cross_cats":["astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-03-16T18:03:08Z","title":"Individual Dynamical Masses of Ultracool Dwarfs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.05775","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:bcc6659252bf1e1d79a01ea7f74e11eb86cd51b6284539698ed2f6f2094e4e1d","target":"record","created_at":"2026-05-18T00:38:28Z","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":"9211a434e6262c893183a6ff1069bfc64e4b3bb45c4444c27d167847cbbe9413","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-03-16T18:03:08Z","title_canon_sha256":"dd2e03ee377f18b8de66b035663638161eed0c5f77e4c00703ce33a61003dda1"},"schema_version":"1.0","source":{"id":"1703.05775","kind":"arxiv","version":2}},"canonical_sha256":"97bb95a75edcf4e144d16f49b91f7e287ddabd61866d7c5018c770226da3ef00","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"97bb95a75edcf4e144d16f49b91f7e287ddabd61866d7c5018c770226da3ef00","first_computed_at":"2026-05-18T00:38:28.074914Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:38:28.074914Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NpB0aMYPYUHC1lL1Iu/eTQ6AxWQDl15VK/snEzbIt11ezv/3zPaykZXrugGVC0aLly57d8LSPObUPqBaFFU9AA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:38:28.075510Z","signed_message":"canonical_sha256_bytes"},"source_id":"1703.05775","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bcc6659252bf1e1d79a01ea7f74e11eb86cd51b6284539698ed2f6f2094e4e1d","sha256:154bacd7965a7e2a700b34b692a59bebfed14467a0bc203e7c996aa3cb557e24"],"state_sha256":"6410c54b116099f06bbeccbfe4dcc351beaf7523452219c295275538ebdbc492"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H5gHRpNefpNDOUr2FIYkOF5GzHSh+o5hShhN7z9XxXWDBrHsAJm4y2ysW89efaIc2mnCZkS4ASKBQbjsDEyrAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T14:47:24.691501Z","bundle_sha256":"5e859ce5047000bf0e97a75a80a1d5a6976af5d93e3bbe74accf7bcb9a09c658"}}