{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:GIYSWQ36HEYGW5ITIOE4K4TI7J","short_pith_number":"pith:GIYSWQ36","canonical_record":{"source":{"id":"1810.07071","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-10-16T15:16:26Z","cross_cats_sorted":[],"title_canon_sha256":"34be0c5d7eb07461f17295197e6d4ffbed551856f58fdab97964710fb36d90f5","abstract_canon_sha256":"c58f91d3def7e8113d4e7e78a0f20e3c98fa61d0dd58a6c32d0fdabe33e60a99"},"schema_version":"1.0"},"canonical_sha256":"32312b437e39306b75134389c57268fa4058139bfef98a35345e40e532dad4b4","source":{"kind":"arxiv","id":"1810.07071","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.07071","created_at":"2026-05-17T23:47:59Z"},{"alias_kind":"arxiv_version","alias_value":"1810.07071v3","created_at":"2026-05-17T23:47:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.07071","created_at":"2026-05-17T23:47:59Z"},{"alias_kind":"pith_short_12","alias_value":"GIYSWQ36HEYG","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"GIYSWQ36HEYGW5IT","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"GIYSWQ36","created_at":"2026-05-18T12:32:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:GIYSWQ36HEYGW5ITIOE4K4TI7J","target":"record","payload":{"canonical_record":{"source":{"id":"1810.07071","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-10-16T15:16:26Z","cross_cats_sorted":[],"title_canon_sha256":"34be0c5d7eb07461f17295197e6d4ffbed551856f58fdab97964710fb36d90f5","abstract_canon_sha256":"c58f91d3def7e8113d4e7e78a0f20e3c98fa61d0dd58a6c32d0fdabe33e60a99"},"schema_version":"1.0"},"canonical_sha256":"32312b437e39306b75134389c57268fa4058139bfef98a35345e40e532dad4b4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:47:59.374193Z","signature_b64":"dGApJShiCPRWyYQNi58EI5V6AqT3NcI/2Iu9GcKFmuCjAT3N3ocayMuNqn8pjo4x93wUZyLmUKbyZJ6zwpPkCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"32312b437e39306b75134389c57268fa4058139bfef98a35345e40e532dad4b4","last_reissued_at":"2026-05-17T23:47:59.373736Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:47:59.373736Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.07071","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:47:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"THmsay7m2B9odoQE/NtUnV1aoaQFi8Q5s9dlh/37HHs/liam9PxHlO+AaLRDQnHlVOKAVFgmrLChHs1cVvNSAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T03:13:46.231516Z"},"content_sha256":"0ca93dc340f87cda516e49da2dcc9e4d0ad1e508b7bf9de750306a4a507aab8e","schema_version":"1.0","event_id":"sha256:0ca93dc340f87cda516e49da2dcc9e4d0ad1e508b7bf9de750306a4a507aab8e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:GIYSWQ36HEYGW5ITIOE4K4TI7J","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Substellar Transition Zone: A Stretched Temperature Canyon in Brown Dwarf Population due to Unsteady Hydrogen Fusion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"ZengHua Zhang","submitted_at":"2018-10-16T15:16:26Z","abstract_excerpt":"I summarize results on transitional and degenerate brown dwarfs presented in a series titled Primeval very low-mass stars and brown dwarfs. I introduce an L subdwarf classification scheme, which classified L subdwarfs into three metal subclasses. I would also like to draw your attention to transitional brown dwarfs which have long-lasting unsteady hydrogen fusion in their cores to replenish the dissipation of their initial thermal energy. The mass range of transitional brown dwarfs with solar metallicity is between 0.065 and 0.079 solar mass according to the latest evolutionary models. The tem"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.07071","kind":"arxiv","version":3},"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":"2026-05-17T23:47:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K8ICB/0T1QJ9p7P4+QRRqvw7qQIRWm9oBUM5PoD0Rq2c6BkDidf5df7baISkRllUZMCLRua348jUKmTyOVbTCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T03:13:46.232210Z"},"content_sha256":"84eda9f1836be2d3883a011c9298af8db9c2c72621961248a8772cf50d8f3c59","schema_version":"1.0","event_id":"sha256:84eda9f1836be2d3883a011c9298af8db9c2c72621961248a8772cf50d8f3c59"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GIYSWQ36HEYGW5ITIOE4K4TI7J/bundle.json","state_url":"https://pith.science/pith/GIYSWQ36HEYGW5ITIOE4K4TI7J/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GIYSWQ36HEYGW5ITIOE4K4TI7J/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":"2026-06-05T03:13:46Z","links":{"resolver":"https://pith.science/pith/GIYSWQ36HEYGW5ITIOE4K4TI7J","bundle":"https://pith.science/pith/GIYSWQ36HEYGW5ITIOE4K4TI7J/bundle.json","state":"https://pith.science/pith/GIYSWQ36HEYGW5ITIOE4K4TI7J/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GIYSWQ36HEYGW5ITIOE4K4TI7J/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:GIYSWQ36HEYGW5ITIOE4K4TI7J","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":"c58f91d3def7e8113d4e7e78a0f20e3c98fa61d0dd58a6c32d0fdabe33e60a99","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-10-16T15:16:26Z","title_canon_sha256":"34be0c5d7eb07461f17295197e6d4ffbed551856f58fdab97964710fb36d90f5"},"schema_version":"1.0","source":{"id":"1810.07071","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.07071","created_at":"2026-05-17T23:47:59Z"},{"alias_kind":"arxiv_version","alias_value":"1810.07071v3","created_at":"2026-05-17T23:47:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.07071","created_at":"2026-05-17T23:47:59Z"},{"alias_kind":"pith_short_12","alias_value":"GIYSWQ36HEYG","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"GIYSWQ36HEYGW5IT","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"GIYSWQ36","created_at":"2026-05-18T12:32:25Z"}],"graph_snapshots":[{"event_id":"sha256:84eda9f1836be2d3883a011c9298af8db9c2c72621961248a8772cf50d8f3c59","target":"graph","created_at":"2026-05-17T23:47:59Z","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":"I summarize results on transitional and degenerate brown dwarfs presented in a series titled Primeval very low-mass stars and brown dwarfs. I introduce an L subdwarf classification scheme, which classified L subdwarfs into three metal subclasses. I would also like to draw your attention to transitional brown dwarfs which have long-lasting unsteady hydrogen fusion in their cores to replenish the dissipation of their initial thermal energy. The mass range of transitional brown dwarfs with solar metallicity is between 0.065 and 0.079 solar mass according to the latest evolutionary models. The tem","authors_text":"ZengHua Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-10-16T15:16:26Z","title":"The Substellar Transition Zone: A Stretched Temperature Canyon in Brown Dwarf Population due to Unsteady Hydrogen Fusion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.07071","kind":"arxiv","version":3},"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":"sha256:0ca93dc340f87cda516e49da2dcc9e4d0ad1e508b7bf9de750306a4a507aab8e","target":"record","created_at":"2026-05-17T23:47:59Z","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":"c58f91d3def7e8113d4e7e78a0f20e3c98fa61d0dd58a6c32d0fdabe33e60a99","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-10-16T15:16:26Z","title_canon_sha256":"34be0c5d7eb07461f17295197e6d4ffbed551856f58fdab97964710fb36d90f5"},"schema_version":"1.0","source":{"id":"1810.07071","kind":"arxiv","version":3}},"canonical_sha256":"32312b437e39306b75134389c57268fa4058139bfef98a35345e40e532dad4b4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"32312b437e39306b75134389c57268fa4058139bfef98a35345e40e532dad4b4","first_computed_at":"2026-05-17T23:47:59.373736Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:47:59.373736Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dGApJShiCPRWyYQNi58EI5V6AqT3NcI/2Iu9GcKFmuCjAT3N3ocayMuNqn8pjo4x93wUZyLmUKbyZJ6zwpPkCw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:47:59.374193Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.07071","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0ca93dc340f87cda516e49da2dcc9e4d0ad1e508b7bf9de750306a4a507aab8e","sha256:84eda9f1836be2d3883a011c9298af8db9c2c72621961248a8772cf50d8f3c59"],"state_sha256":"2cd0552dc6a10d795a0aa141e15f66d14e33d2540b08a984a63776e0421f8bc6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Sx2lpQb0vo+x+P/rFPKx6tAE4A2Mmmy+nPe490wcQ8FI6dbi1vvfP0HM89qriPCeHbjhpEKWZKunsIByx2xVBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T03:13:46.235888Z","bundle_sha256":"3fe990de91b0cc0de936b62599956d4e1c05638391eac0f7098f2841b8331e3e"}}