{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:F32UEHHU4DGLLPCG4IBTPZD2DK","short_pith_number":"pith:F32UEHHU","canonical_record":{"source":{"id":"1611.08635","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-11-25T23:27:36Z","cross_cats_sorted":["physics.class-ph"],"title_canon_sha256":"ebfda094d05ab3118451878f3bd9ba174716b5cfcccfe179f6fd3c124d3ce459","abstract_canon_sha256":"801866f997904e00de6c941e112b410f1e4de7b51a67b3847137909c0de6aa2b"},"schema_version":"1.0"},"canonical_sha256":"2ef5421cf4e0ccb5bc46e20337e47a1aaafff487a3757480121d589d80570a1f","source":{"kind":"arxiv","id":"1611.08635","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.08635","created_at":"2026-05-18T00:41:38Z"},{"alias_kind":"arxiv_version","alias_value":"1611.08635v1","created_at":"2026-05-18T00:41:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.08635","created_at":"2026-05-18T00:41:38Z"},{"alias_kind":"pith_short_12","alias_value":"F32UEHHU4DGL","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_16","alias_value":"F32UEHHU4DGLLPCG","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_8","alias_value":"F32UEHHU","created_at":"2026-05-18T12:30:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:F32UEHHU4DGLLPCG4IBTPZD2DK","target":"record","payload":{"canonical_record":{"source":{"id":"1611.08635","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-11-25T23:27:36Z","cross_cats_sorted":["physics.class-ph"],"title_canon_sha256":"ebfda094d05ab3118451878f3bd9ba174716b5cfcccfe179f6fd3c124d3ce459","abstract_canon_sha256":"801866f997904e00de6c941e112b410f1e4de7b51a67b3847137909c0de6aa2b"},"schema_version":"1.0"},"canonical_sha256":"2ef5421cf4e0ccb5bc46e20337e47a1aaafff487a3757480121d589d80570a1f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:41:38.374535Z","signature_b64":"lP6DWxyqvYrvbJCCb1g1UrFy25rEEU2rhcKTeZJkpNx7QrtjQrLYnUKes+vUGPw55vnJ/Un7GKCFKrfMgbSzBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2ef5421cf4e0ccb5bc46e20337e47a1aaafff487a3757480121d589d80570a1f","last_reissued_at":"2026-05-18T00:41:38.373824Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:41:38.373824Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1611.08635","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":"2026-05-18T00:41:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fJQ5nMP2Hjmi/Dt8ctevIBU5s9JcN3+qE2NGjSRC3iKdfoQzFmvRYOL5/D8uzqBQOW2JIsCNxVx71gzBblJOAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T10:04:40.111727Z"},"content_sha256":"b5c45516cfb9b96d1d2887a03ed167deb3b431318228a55030c64960d798a066","schema_version":"1.0","event_id":"sha256:b5c45516cfb9b96d1d2887a03ed167deb3b431318228a55030c64960d798a066"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:F32UEHHU4DGLLPCG4IBTPZD2DK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dynamics of wide binary stars: A case study for testing Newtonian dynamics in the low acceleration regime","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.class-ph"],"primary_cat":"astro-ph.GA","authors_text":"Aldo Treves, Renato Falomo, Riccardo Ottolina, Riccardo Scarpa","submitted_at":"2016-11-25T23:27:36Z","abstract_excerpt":"Extremely wide binary stars represent ideal systems to probe Newtonian dynamics in the low acceleration regimes (<10e-10 m/s/s) typical of the external regions of galaxies. Here we present a study of 60 alleged wide binary stars with projected separation ranging from 0.004 to 1 pc, probing gravitational accelerations well below the limit were dark matter or modified dynamics theories set in. Radial velocities with accuracy ~100 m/s were obtained for each star, in order to constrain their orbital velocity, that, together with proper motion data, can distinguish bound from unbound systems. It wa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.08635","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":""},"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":"2026-05-18T00:41:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e7MlBOMG3y+e2VUrAjpAVHcJ4jH/nW8Wh2YN5Bwk7IvDQD76SfA3humgg0Rjnea8ZsMYBuezt5cHUMv9sQQXAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T10:04:40.112136Z"},"content_sha256":"5c686d3ebc6dc6d332fb02df23c3a0ac2c5d7ba20b9f3a9cc303f3a456bde14d","schema_version":"1.0","event_id":"sha256:5c686d3ebc6dc6d332fb02df23c3a0ac2c5d7ba20b9f3a9cc303f3a456bde14d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/F32UEHHU4DGLLPCG4IBTPZD2DK/bundle.json","state_url":"https://pith.science/pith/F32UEHHU4DGLLPCG4IBTPZD2DK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/F32UEHHU4DGLLPCG4IBTPZD2DK/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":"2026-05-30T10:04:40Z","links":{"resolver":"https://pith.science/pith/F32UEHHU4DGLLPCG4IBTPZD2DK","bundle":"https://pith.science/pith/F32UEHHU4DGLLPCG4IBTPZD2DK/bundle.json","state":"https://pith.science/pith/F32UEHHU4DGLLPCG4IBTPZD2DK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/F32UEHHU4DGLLPCG4IBTPZD2DK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:F32UEHHU4DGLLPCG4IBTPZD2DK","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":"801866f997904e00de6c941e112b410f1e4de7b51a67b3847137909c0de6aa2b","cross_cats_sorted":["physics.class-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-11-25T23:27:36Z","title_canon_sha256":"ebfda094d05ab3118451878f3bd9ba174716b5cfcccfe179f6fd3c124d3ce459"},"schema_version":"1.0","source":{"id":"1611.08635","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.08635","created_at":"2026-05-18T00:41:38Z"},{"alias_kind":"arxiv_version","alias_value":"1611.08635v1","created_at":"2026-05-18T00:41:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.08635","created_at":"2026-05-18T00:41:38Z"},{"alias_kind":"pith_short_12","alias_value":"F32UEHHU4DGL","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_16","alias_value":"F32UEHHU4DGLLPCG","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_8","alias_value":"F32UEHHU","created_at":"2026-05-18T12:30:15Z"}],"graph_snapshots":[{"event_id":"sha256:5c686d3ebc6dc6d332fb02df23c3a0ac2c5d7ba20b9f3a9cc303f3a456bde14d","target":"graph","created_at":"2026-05-18T00:41:38Z","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":"Extremely wide binary stars represent ideal systems to probe Newtonian dynamics in the low acceleration regimes (<10e-10 m/s/s) typical of the external regions of galaxies. Here we present a study of 60 alleged wide binary stars with projected separation ranging from 0.004 to 1 pc, probing gravitational accelerations well below the limit were dark matter or modified dynamics theories set in. Radial velocities with accuracy ~100 m/s were obtained for each star, in order to constrain their orbital velocity, that, together with proper motion data, can distinguish bound from unbound systems. It wa","authors_text":"Aldo Treves, Renato Falomo, Riccardo Ottolina, Riccardo Scarpa","cross_cats":["physics.class-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-11-25T23:27:36Z","title":"Dynamics of wide binary stars: A case study for testing Newtonian dynamics in the low acceleration regime"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.08635","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:b5c45516cfb9b96d1d2887a03ed167deb3b431318228a55030c64960d798a066","target":"record","created_at":"2026-05-18T00:41:38Z","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":"801866f997904e00de6c941e112b410f1e4de7b51a67b3847137909c0de6aa2b","cross_cats_sorted":["physics.class-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-11-25T23:27:36Z","title_canon_sha256":"ebfda094d05ab3118451878f3bd9ba174716b5cfcccfe179f6fd3c124d3ce459"},"schema_version":"1.0","source":{"id":"1611.08635","kind":"arxiv","version":1}},"canonical_sha256":"2ef5421cf4e0ccb5bc46e20337e47a1aaafff487a3757480121d589d80570a1f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2ef5421cf4e0ccb5bc46e20337e47a1aaafff487a3757480121d589d80570a1f","first_computed_at":"2026-05-18T00:41:38.373824Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:41:38.373824Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lP6DWxyqvYrvbJCCb1g1UrFy25rEEU2rhcKTeZJkpNx7QrtjQrLYnUKes+vUGPw55vnJ/Un7GKCFKrfMgbSzBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:41:38.374535Z","signed_message":"canonical_sha256_bytes"},"source_id":"1611.08635","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b5c45516cfb9b96d1d2887a03ed167deb3b431318228a55030c64960d798a066","sha256:5c686d3ebc6dc6d332fb02df23c3a0ac2c5d7ba20b9f3a9cc303f3a456bde14d"],"state_sha256":"11adf6b08e8c91294588c22a339d13e3da4e994ac76517f89bea3acbbf46bd0b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KX8Gz/qhjFkqD1Gg8Ssh1UCYv40w2D2tRFj8dtft4q+JdA5LDjfK0gHlsZpcdNSWbUCdOa5dSLJ+AcQLJXOsAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T10:04:40.114951Z","bundle_sha256":"4b4f9c9858d135a51562fe433265168d37eb647baa584ed6aea6a121c8aad208"}}