{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:MBYOTF2M5K36S6FK5WBJYGORWK","short_pith_number":"pith:MBYOTF2M","canonical_record":{"source":{"id":"1110.1640","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-10-07T20:08:55Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"aa2488823a05f8d9569fadce1efd6d1438df3616166c24385c4792dd79cbc357","abstract_canon_sha256":"a010c2ace7fcb37ed685a6e32f5f2f59c6f6c9ba05cb24594b799133d422b905"},"schema_version":"1.0"},"canonical_sha256":"6070e9974ceab7e978aaed829c19d1b2b9a09d26a97d265a70f6b07891a4a7ee","source":{"kind":"arxiv","id":"1110.1640","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.1640","created_at":"2026-05-18T02:00:16Z"},{"alias_kind":"arxiv_version","alias_value":"1110.1640v1","created_at":"2026-05-18T02:00:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.1640","created_at":"2026-05-18T02:00:16Z"},{"alias_kind":"pith_short_12","alias_value":"MBYOTF2M5K36","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"MBYOTF2M5K36S6FK","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"MBYOTF2M","created_at":"2026-05-18T12:26:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:MBYOTF2M5K36S6FK5WBJYGORWK","target":"record","payload":{"canonical_record":{"source":{"id":"1110.1640","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-10-07T20:08:55Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"aa2488823a05f8d9569fadce1efd6d1438df3616166c24385c4792dd79cbc357","abstract_canon_sha256":"a010c2ace7fcb37ed685a6e32f5f2f59c6f6c9ba05cb24594b799133d422b905"},"schema_version":"1.0"},"canonical_sha256":"6070e9974ceab7e978aaed829c19d1b2b9a09d26a97d265a70f6b07891a4a7ee","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:16.275329Z","signature_b64":"m5Dh0gCr0W2Zb5nzchv4x02RKSnIBrXRIDRrvNeSvCnBGpOG8EyNrfNXvFUvqRJedCBRbebbu1HeXs4U+ETrBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6070e9974ceab7e978aaed829c19d1b2b9a09d26a97d265a70f6b07891a4a7ee","last_reissued_at":"2026-05-18T02:00:16.274897Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:16.274897Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1110.1640","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":"2026-05-18T02:00:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HJ+mOrOhMihVJVPwCTYHjXdk77FJcmIh2/LcZ3ljpEkx+NRso23Y/1JRcs2LYjvxLsSjMbU0DuN7TV+OQ2nIBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T10:00:10.263381Z"},"content_sha256":"28af044195514517656bd4dec36e618fa6a60f413d564f1cc5c74c30cf7750de","schema_version":"1.0","event_id":"sha256:28af044195514517656bd4dec36e618fa6a60f413d564f1cc5c74c30cf7750de"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:MBYOTF2M5K36S6FK5WBJYGORWK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Substellar Objects in Nearby Young Clusters (SONYC) V: New brown dwarfs in rho Ophiuchi","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Alexander Scholz, Koraljka Muzic, Motohide Tamura, Ray Jayawardhana, Vincent C. Geers","submitted_at":"2011-10-07T20:08:55Z","abstract_excerpt":"SONYC - Substellar Objects in Nearby Young Clusters - is a survey program to investigate the frequency and properties of substellar objects with masses down to a few times that of Jupiter in nearby star-forming regions. For the ~1Myr old rho Ophiuchi cluster, in our earlier paper we reported deep, wide-field optical and near-infrared imaging using Subaru, combined with 2MASS and Spitzer photometry, as well as follow-up spectroscopy confirming three likely cluster members, including a new brown dwarf with a mass close to the deuterium-burning limit. Here we present the results of extensive new "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.1640","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":"2026-05-18T02:00:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1XZIF9KK8iQrRVKmCbKGcsGR6UzApfr1EiyEr+DTZTSgVj9qIDi1WL0yiKPbFuDMuztV3s+QsFRvBvZhFZNYBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T10:00:10.263728Z"},"content_sha256":"e7f0f89e89b201c24b201d52be26bf17316ac5f5c8cc8d2a9bc284e03a2bb62f","schema_version":"1.0","event_id":"sha256:e7f0f89e89b201c24b201d52be26bf17316ac5f5c8cc8d2a9bc284e03a2bb62f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MBYOTF2M5K36S6FK5WBJYGORWK/bundle.json","state_url":"https://pith.science/pith/MBYOTF2M5K36S6FK5WBJYGORWK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MBYOTF2M5K36S6FK5WBJYGORWK/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":"2026-06-01T10:00:10Z","links":{"resolver":"https://pith.science/pith/MBYOTF2M5K36S6FK5WBJYGORWK","bundle":"https://pith.science/pith/MBYOTF2M5K36S6FK5WBJYGORWK/bundle.json","state":"https://pith.science/pith/MBYOTF2M5K36S6FK5WBJYGORWK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MBYOTF2M5K36S6FK5WBJYGORWK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:MBYOTF2M5K36S6FK5WBJYGORWK","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":"a010c2ace7fcb37ed685a6e32f5f2f59c6f6c9ba05cb24594b799133d422b905","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-10-07T20:08:55Z","title_canon_sha256":"aa2488823a05f8d9569fadce1efd6d1438df3616166c24385c4792dd79cbc357"},"schema_version":"1.0","source":{"id":"1110.1640","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.1640","created_at":"2026-05-18T02:00:16Z"},{"alias_kind":"arxiv_version","alias_value":"1110.1640v1","created_at":"2026-05-18T02:00:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.1640","created_at":"2026-05-18T02:00:16Z"},{"alias_kind":"pith_short_12","alias_value":"MBYOTF2M5K36","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"MBYOTF2M5K36S6FK","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"MBYOTF2M","created_at":"2026-05-18T12:26:34Z"}],"graph_snapshots":[{"event_id":"sha256:e7f0f89e89b201c24b201d52be26bf17316ac5f5c8cc8d2a9bc284e03a2bb62f","target":"graph","created_at":"2026-05-18T02:00:16Z","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":"SONYC - Substellar Objects in Nearby Young Clusters - is a survey program to investigate the frequency and properties of substellar objects with masses down to a few times that of Jupiter in nearby star-forming regions. For the ~1Myr old rho Ophiuchi cluster, in our earlier paper we reported deep, wide-field optical and near-infrared imaging using Subaru, combined with 2MASS and Spitzer photometry, as well as follow-up spectroscopy confirming three likely cluster members, including a new brown dwarf with a mass close to the deuterium-burning limit. Here we present the results of extensive new ","authors_text":"Alexander Scholz, Koraljka Muzic, Motohide Tamura, Ray Jayawardhana, Vincent C. Geers","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-10-07T20:08:55Z","title":"Substellar Objects in Nearby Young Clusters (SONYC) V: New brown dwarfs in rho Ophiuchi"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.1640","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":"sha256:28af044195514517656bd4dec36e618fa6a60f413d564f1cc5c74c30cf7750de","target":"record","created_at":"2026-05-18T02:00:16Z","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":"a010c2ace7fcb37ed685a6e32f5f2f59c6f6c9ba05cb24594b799133d422b905","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-10-07T20:08:55Z","title_canon_sha256":"aa2488823a05f8d9569fadce1efd6d1438df3616166c24385c4792dd79cbc357"},"schema_version":"1.0","source":{"id":"1110.1640","kind":"arxiv","version":1}},"canonical_sha256":"6070e9974ceab7e978aaed829c19d1b2b9a09d26a97d265a70f6b07891a4a7ee","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6070e9974ceab7e978aaed829c19d1b2b9a09d26a97d265a70f6b07891a4a7ee","first_computed_at":"2026-05-18T02:00:16.274897Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:16.274897Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"m5Dh0gCr0W2Zb5nzchv4x02RKSnIBrXRIDRrvNeSvCnBGpOG8EyNrfNXvFUvqRJedCBRbebbu1HeXs4U+ETrBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:16.275329Z","signed_message":"canonical_sha256_bytes"},"source_id":"1110.1640","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:28af044195514517656bd4dec36e618fa6a60f413d564f1cc5c74c30cf7750de","sha256:e7f0f89e89b201c24b201d52be26bf17316ac5f5c8cc8d2a9bc284e03a2bb62f"],"state_sha256":"0c3b763151ef64277db970ade369cfcd521a0349d2097ea1c3d093e06b06d872"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"g+Y+FW549XynsTnLfsiftVP6Kh3ug248abM4Jmb+GpN6UngMPb5k4bWfwXQ6EPLX4EmO9sVc44xwK7ESPvBZAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T10:00:10.265808Z","bundle_sha256":"e5e03d2dc632fc3e374012bf57f64377705580239724ea5e08dd10d27e9a7632"}}