{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:LBP5KGQ26MQST7EYFKWAJYZOGD","short_pith_number":"pith:LBP5KGQ2","canonical_record":{"source":{"id":"1206.0943","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-06-05T14:19:04Z","cross_cats_sorted":[],"title_canon_sha256":"19fc3365ba5b62d9b6070d0a405039981debecc3e55bdf9206f27f46e899eee7","abstract_canon_sha256":"77ece0cc2bfdde0efc12c4f126405a50311eb8afbdf4930f11e77a1ff951e056"},"schema_version":"1.0"},"canonical_sha256":"585fd51a1af32129fc982aac04e32e30db91d01bb112844f766abb4b72b310c7","source":{"kind":"arxiv","id":"1206.0943","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1206.0943","created_at":"2026-05-18T01:57:07Z"},{"alias_kind":"arxiv_version","alias_value":"1206.0943v1","created_at":"2026-05-18T01:57:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.0943","created_at":"2026-05-18T01:57:07Z"},{"alias_kind":"pith_short_12","alias_value":"LBP5KGQ26MQS","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"LBP5KGQ26MQST7EY","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"LBP5KGQ2","created_at":"2026-05-18T12:27:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:LBP5KGQ26MQST7EYFKWAJYZOGD","target":"record","payload":{"canonical_record":{"source":{"id":"1206.0943","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-06-05T14:19:04Z","cross_cats_sorted":[],"title_canon_sha256":"19fc3365ba5b62d9b6070d0a405039981debecc3e55bdf9206f27f46e899eee7","abstract_canon_sha256":"77ece0cc2bfdde0efc12c4f126405a50311eb8afbdf4930f11e77a1ff951e056"},"schema_version":"1.0"},"canonical_sha256":"585fd51a1af32129fc982aac04e32e30db91d01bb112844f766abb4b72b310c7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:57:07.602559Z","signature_b64":"nWSDEAnF+VkTVjTwWFZQNURe+y3/l+vCd2DZjqVwVWzIHuxxnvSyOyvPUvTxgJvhuMadwBFByNJtH7aM0mQkCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"585fd51a1af32129fc982aac04e32e30db91d01bb112844f766abb4b72b310c7","last_reissued_at":"2026-05-18T01:57:07.601986Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:57:07.601986Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1206.0943","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":"2026-05-18T01:57:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E7eEdNBHNLsJJJyV9lvS6amrePqVEAFKBVRFCRV0ogojytcBhIIrJBCMXcDEDQbhawiBTky6aJIp6hbVTPSTDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T03:55:25.096015Z"},"content_sha256":"0c36cddefc119dc1b33a9634591f52e58a90817c65ff593dc9e7bfe3aed404f2","schema_version":"1.0","event_id":"sha256:0c36cddefc119dc1b33a9634591f52e58a90817c65ff593dc9e7bfe3aed404f2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:LBP5KGQ26MQST7EYFKWAJYZOGD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Galaxy and Mass Assembly (GAMA): Colour and luminosity dependent clustering from calibrated photometric redshifts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. M. Hopkins, A. S. G. Robotham, C. C. Popescu, C. Eminian, C. J. Conselice, C. S. Frenk, D. H. Jones, D. Thomas, D. Wijesinghe, E. Cameron, E. N. Taylor, E. van Kampen, H. Parkinson, I. K. Baldry, J. A. Peacock, J. Bland-Hawthorn, J. Liske, J. Loveday, K. A. Pimbblet, K. Kuijken, L. Christodoulou, L. S. Kelvin, M. Gunawardhana, M. Prescott, P. D. Hurley, P. Norberg, R. C. Nichol, R. G. Sharp, R. J. Tuffs, S. Brough, S. M. Croom, S. P. Bamford, S. P. Driver, W. J. Sutherland","submitted_at":"2012-06-05T14:19:04Z","abstract_excerpt":"We measure the two-point angular correlation function of a sample of 4,289,223 galaxies with r < 19.4 mag from the Sloan Digital Sky Survey as a function of photometric redshift, absolute magnitude and colour down to M_r - 5log h = -14 mag. Photometric redshifts are estimated from ugriz model magnitudes and two Petrosian radii using the artificial neural network package ANNz, taking advantage of the Galaxy and Mass Assembly (GAMA) spectroscopic sample as our training set. The photometric redshifts are then used to determine absolute magnitudes and colours. For all our samples, we estimate the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.0943","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":"2026-05-18T01:57:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hRorT/scPO/lTy67C+HOFgxNBxDdArA2KRSdwQ1Cr4Ql7G7asHw8vshkPf3Do7nVntpozEdqEdpR3bJ0FUDzCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T03:55:25.096377Z"},"content_sha256":"e842cfdaf14fb571256e89d523d70381897f69c2e35aa140e55e8c794ea8af04","schema_version":"1.0","event_id":"sha256:e842cfdaf14fb571256e89d523d70381897f69c2e35aa140e55e8c794ea8af04"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LBP5KGQ26MQST7EYFKWAJYZOGD/bundle.json","state_url":"https://pith.science/pith/LBP5KGQ26MQST7EYFKWAJYZOGD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LBP5KGQ26MQST7EYFKWAJYZOGD/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":"2026-06-04T03:55:25Z","links":{"resolver":"https://pith.science/pith/LBP5KGQ26MQST7EYFKWAJYZOGD","bundle":"https://pith.science/pith/LBP5KGQ26MQST7EYFKWAJYZOGD/bundle.json","state":"https://pith.science/pith/LBP5KGQ26MQST7EYFKWAJYZOGD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LBP5KGQ26MQST7EYFKWAJYZOGD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:LBP5KGQ26MQST7EYFKWAJYZOGD","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":"77ece0cc2bfdde0efc12c4f126405a50311eb8afbdf4930f11e77a1ff951e056","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-06-05T14:19:04Z","title_canon_sha256":"19fc3365ba5b62d9b6070d0a405039981debecc3e55bdf9206f27f46e899eee7"},"schema_version":"1.0","source":{"id":"1206.0943","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1206.0943","created_at":"2026-05-18T01:57:07Z"},{"alias_kind":"arxiv_version","alias_value":"1206.0943v1","created_at":"2026-05-18T01:57:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.0943","created_at":"2026-05-18T01:57:07Z"},{"alias_kind":"pith_short_12","alias_value":"LBP5KGQ26MQS","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"LBP5KGQ26MQST7EY","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"LBP5KGQ2","created_at":"2026-05-18T12:27:14Z"}],"graph_snapshots":[{"event_id":"sha256:e842cfdaf14fb571256e89d523d70381897f69c2e35aa140e55e8c794ea8af04","target":"graph","created_at":"2026-05-18T01:57:07Z","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 measure the two-point angular correlation function of a sample of 4,289,223 galaxies with r < 19.4 mag from the Sloan Digital Sky Survey as a function of photometric redshift, absolute magnitude and colour down to M_r - 5log h = -14 mag. Photometric redshifts are estimated from ugriz model magnitudes and two Petrosian radii using the artificial neural network package ANNz, taking advantage of the Galaxy and Mass Assembly (GAMA) spectroscopic sample as our training set. The photometric redshifts are then used to determine absolute magnitudes and colours. For all our samples, we estimate the ","authors_text":"A. M. Hopkins, A. S. G. Robotham, C. C. Popescu, C. Eminian, C. J. Conselice, C. S. Frenk, D. H. Jones, D. Thomas, D. Wijesinghe, E. Cameron, E. N. Taylor, E. van Kampen, H. Parkinson, I. K. Baldry, J. A. Peacock, J. Bland-Hawthorn, J. Liske, J. Loveday, K. A. Pimbblet, K. Kuijken, L. Christodoulou, L. S. Kelvin, M. Gunawardhana, M. Prescott, P. D. Hurley, P. Norberg, R. C. Nichol, R. G. Sharp, R. J. Tuffs, S. Brough, S. M. Croom, S. P. Bamford, S. P. Driver, W. J. Sutherland","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-06-05T14:19:04Z","title":"Galaxy and Mass Assembly (GAMA): Colour and luminosity dependent clustering from calibrated photometric redshifts"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.0943","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":"sha256:0c36cddefc119dc1b33a9634591f52e58a90817c65ff593dc9e7bfe3aed404f2","target":"record","created_at":"2026-05-18T01:57:07Z","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":"77ece0cc2bfdde0efc12c4f126405a50311eb8afbdf4930f11e77a1ff951e056","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-06-05T14:19:04Z","title_canon_sha256":"19fc3365ba5b62d9b6070d0a405039981debecc3e55bdf9206f27f46e899eee7"},"schema_version":"1.0","source":{"id":"1206.0943","kind":"arxiv","version":1}},"canonical_sha256":"585fd51a1af32129fc982aac04e32e30db91d01bb112844f766abb4b72b310c7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"585fd51a1af32129fc982aac04e32e30db91d01bb112844f766abb4b72b310c7","first_computed_at":"2026-05-18T01:57:07.601986Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:57:07.601986Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nWSDEAnF+VkTVjTwWFZQNURe+y3/l+vCd2DZjqVwVWzIHuxxnvSyOyvPUvTxgJvhuMadwBFByNJtH7aM0mQkCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:57:07.602559Z","signed_message":"canonical_sha256_bytes"},"source_id":"1206.0943","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0c36cddefc119dc1b33a9634591f52e58a90817c65ff593dc9e7bfe3aed404f2","sha256:e842cfdaf14fb571256e89d523d70381897f69c2e35aa140e55e8c794ea8af04"],"state_sha256":"ad49d7c7b0a227f05b04859e295a1810192117569abdcb195420bcb8309caf21"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"35CgINXm0A1M3fFVqcnpHZcCgIEhNTWnSYPuocIrxM4NMmbiTlZmqema6O4o93LSWh+sin3adSrVJHjm4ZncCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T03:55:25.098390Z","bundle_sha256":"f77e1934989fc59004d5cea4a733033f227fe25ea8dc6bd157277c258258aa47"}}