{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:JJOK56Z3AEWPSESJQNQEHC7RRM","short_pith_number":"pith:JJOK56Z3","canonical_record":{"source":{"id":"1811.03712","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-11-08T23:14:48Z","cross_cats_sorted":[],"title_canon_sha256":"e12600f2a01d30cb4e0f5aacaad23a87eee64d7dc9057645b33f90721348082f","abstract_canon_sha256":"9aede831b1b3622cf46bf9a62e5b9135d6f2ed7348420dbba892899381f337b2"},"schema_version":"1.0"},"canonical_sha256":"4a5caefb3b012cf912498360438bf18b1c04d301356a5fc6c88393357e4b5536","source":{"kind":"arxiv","id":"1811.03712","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.03712","created_at":"2026-05-18T00:01:12Z"},{"alias_kind":"arxiv_version","alias_value":"1811.03712v1","created_at":"2026-05-18T00:01:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.03712","created_at":"2026-05-18T00:01:12Z"},{"alias_kind":"pith_short_12","alias_value":"JJOK56Z3AEWP","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"JJOK56Z3AEWPSESJ","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"JJOK56Z3","created_at":"2026-05-18T12:32:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:JJOK56Z3AEWPSESJQNQEHC7RRM","target":"record","payload":{"canonical_record":{"source":{"id":"1811.03712","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-11-08T23:14:48Z","cross_cats_sorted":[],"title_canon_sha256":"e12600f2a01d30cb4e0f5aacaad23a87eee64d7dc9057645b33f90721348082f","abstract_canon_sha256":"9aede831b1b3622cf46bf9a62e5b9135d6f2ed7348420dbba892899381f337b2"},"schema_version":"1.0"},"canonical_sha256":"4a5caefb3b012cf912498360438bf18b1c04d301356a5fc6c88393357e4b5536","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:01:12.253303Z","signature_b64":"YazDf5ZF04+kJ//XYVvMgeY5owb2ATKb6Mk7M3ux++f58YuZBWdLwKc2eqfXe4O9wgVFvptLVJ+4RooQU9/GBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4a5caefb3b012cf912498360438bf18b1c04d301356a5fc6c88393357e4b5536","last_reissued_at":"2026-05-18T00:01:12.252693Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:01:12.252693Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1811.03712","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":"2026-05-18T00:01:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MG2BZ2ZTFM+7eSh3zTI/uoBw3iKgbv2rwTMWLp2a7t13FQHajt9lkHUxxvCGlxtrN785A8GrEWFPjaHcM/kSDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T05:55:28.807755Z"},"content_sha256":"0c8a0835569d9764a37d61a49cf20f85f4e8c52aaf9f69ab67fe8e6b81479755","schema_version":"1.0","event_id":"sha256:0c8a0835569d9764a37d61a49cf20f85f4e8c52aaf9f69ab67fe8e6b81479755"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:JJOK56Z3AEWPSESJQNQEHC7RRM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Galaxy And Mass Assembly (GAMA): The sSFR-M* relation part I - $\\sigma_{\\mathrm{sSFR}}$-M* as a function of sample, SFR indicator and environment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Katsianis, A. S. G. Robotham, B. W. Holwerda, C. del P. Lagos, L. Cortese, L. J. M. Davies, M. E. Cluver, M. J. I. Brown, M. N. Bremer, M. Owers, M.W. Grootes, S. Brough, S. P. Driver, S. Phillipps","submitted_at":"2018-11-08T23:14:48Z","abstract_excerpt":"Recently a number of studies have proposed that the dispersion along the star formation rate - stellar mass relation ($\\sigma_{\\mathrm{sSFR}}$-M$_{*}$) is indicative of variations in star-formation history (SFH) driven by feedback processes. They found a 'U'-shaped dispersion and attribute the increased scatter at low and high stellar masses to stellar and active galactic nuclei feed-back respectively. However, measuring $\\sigma_{\\mathrm{sSFR}}$ and the shape of the $\\sigma_{\\mathrm{sSFR}}$-M$_{*}$ relation is problematic and can vary dramatically depending on the sample selected, chosen separ"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.03712","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":"2026-05-18T00:01:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZmwfGO7BsKz7XgMssUR7kJEM6HdpFkjeSqr69heuLa9y9uIPT2tMpdC0kLAVhpRTLVBLwCdup8j/g2WVMH/bBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T05:55:28.808110Z"},"content_sha256":"e2a53fc846dc9fd341c4dca5ae8b40099568fa4e2278afe10d0aff6b881519ed","schema_version":"1.0","event_id":"sha256:e2a53fc846dc9fd341c4dca5ae8b40099568fa4e2278afe10d0aff6b881519ed"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JJOK56Z3AEWPSESJQNQEHC7RRM/bundle.json","state_url":"https://pith.science/pith/JJOK56Z3AEWPSESJQNQEHC7RRM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JJOK56Z3AEWPSESJQNQEHC7RRM/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":"2026-06-01T05:55:28Z","links":{"resolver":"https://pith.science/pith/JJOK56Z3AEWPSESJQNQEHC7RRM","bundle":"https://pith.science/pith/JJOK56Z3AEWPSESJQNQEHC7RRM/bundle.json","state":"https://pith.science/pith/JJOK56Z3AEWPSESJQNQEHC7RRM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JJOK56Z3AEWPSESJQNQEHC7RRM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:JJOK56Z3AEWPSESJQNQEHC7RRM","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":"9aede831b1b3622cf46bf9a62e5b9135d6f2ed7348420dbba892899381f337b2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-11-08T23:14:48Z","title_canon_sha256":"e12600f2a01d30cb4e0f5aacaad23a87eee64d7dc9057645b33f90721348082f"},"schema_version":"1.0","source":{"id":"1811.03712","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.03712","created_at":"2026-05-18T00:01:12Z"},{"alias_kind":"arxiv_version","alias_value":"1811.03712v1","created_at":"2026-05-18T00:01:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.03712","created_at":"2026-05-18T00:01:12Z"},{"alias_kind":"pith_short_12","alias_value":"JJOK56Z3AEWP","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"JJOK56Z3AEWPSESJ","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"JJOK56Z3","created_at":"2026-05-18T12:32:31Z"}],"graph_snapshots":[{"event_id":"sha256:e2a53fc846dc9fd341c4dca5ae8b40099568fa4e2278afe10d0aff6b881519ed","target":"graph","created_at":"2026-05-18T00:01:12Z","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"},"paper":{"abstract_excerpt":"Recently a number of studies have proposed that the dispersion along the star formation rate - stellar mass relation ($\\sigma_{\\mathrm{sSFR}}$-M$_{*}$) is indicative of variations in star-formation history (SFH) driven by feedback processes. They found a 'U'-shaped dispersion and attribute the increased scatter at low and high stellar masses to stellar and active galactic nuclei feed-back respectively. However, measuring $\\sigma_{\\mathrm{sSFR}}$ and the shape of the $\\sigma_{\\mathrm{sSFR}}$-M$_{*}$ relation is problematic and can vary dramatically depending on the sample selected, chosen separ","authors_text":"A. Katsianis, A. S. G. Robotham, B. W. Holwerda, C. del P. Lagos, L. Cortese, L. J. M. Davies, M. E. Cluver, M. J. I. Brown, M. N. Bremer, M. Owers, M.W. Grootes, S. Brough, S. P. Driver, S. Phillipps","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-11-08T23:14:48Z","title":"Galaxy And Mass Assembly (GAMA): The sSFR-M* relation part I - $\\sigma_{\\mathrm{sSFR}}$-M* as a function of sample, SFR indicator and environment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.03712","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":"sha256:0c8a0835569d9764a37d61a49cf20f85f4e8c52aaf9f69ab67fe8e6b81479755","target":"record","created_at":"2026-05-18T00:01:12Z","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":"9aede831b1b3622cf46bf9a62e5b9135d6f2ed7348420dbba892899381f337b2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-11-08T23:14:48Z","title_canon_sha256":"e12600f2a01d30cb4e0f5aacaad23a87eee64d7dc9057645b33f90721348082f"},"schema_version":"1.0","source":{"id":"1811.03712","kind":"arxiv","version":1}},"canonical_sha256":"4a5caefb3b012cf912498360438bf18b1c04d301356a5fc6c88393357e4b5536","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4a5caefb3b012cf912498360438bf18b1c04d301356a5fc6c88393357e4b5536","first_computed_at":"2026-05-18T00:01:12.252693Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:01:12.252693Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YazDf5ZF04+kJ//XYVvMgeY5owb2ATKb6Mk7M3ux++f58YuZBWdLwKc2eqfXe4O9wgVFvptLVJ+4RooQU9/GBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:01:12.253303Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.03712","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0c8a0835569d9764a37d61a49cf20f85f4e8c52aaf9f69ab67fe8e6b81479755","sha256:e2a53fc846dc9fd341c4dca5ae8b40099568fa4e2278afe10d0aff6b881519ed"],"state_sha256":"f45610793d9c040fdf8aea132efece4cc88b293c2075c352300000d75a69355f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6J/VYDbvlh9knUxtlGz6epdmrc07CoDS70/WrXk+v9Pw+ci9bDOyn7Tk6rsKZD5bD+QE+KnLV81X/0SuXYSgBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T05:55:28.810623Z","bundle_sha256":"fec92a76cdc561f8eadac9d641ec0a854d1732e4fc614a83adc191acc732ea43"}}