{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:AYYF7RTXHUXRMUT2U63QBYQVVQ","short_pith_number":"pith:AYYF7RTX","canonical_record":{"source":{"id":"1512.03057","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-12-09T21:00:01Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"3e87b2fe99e03688d5829b012d66efbab42a904ddc707e8750706a4c9341c65b","abstract_canon_sha256":"f055f1b94bc0562aced5b347d3c0c2c904305dfe354c62497a96d6a3ceb2c99c"},"schema_version":"1.0"},"canonical_sha256":"06305fc6773d2f16527aa7b700e215ac1617a511fc908055c8c7cca6e16bbb1f","source":{"kind":"arxiv","id":"1512.03057","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.03057","created_at":"2026-05-18T01:15:51Z"},{"alias_kind":"arxiv_version","alias_value":"1512.03057v2","created_at":"2026-05-18T01:15:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.03057","created_at":"2026-05-18T01:15:51Z"},{"alias_kind":"pith_short_12","alias_value":"AYYF7RTXHUXR","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"AYYF7RTXHUXRMUT2","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"AYYF7RTX","created_at":"2026-05-18T12:29:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:AYYF7RTXHUXRMUT2U63QBYQVVQ","target":"record","payload":{"canonical_record":{"source":{"id":"1512.03057","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-12-09T21:00:01Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"3e87b2fe99e03688d5829b012d66efbab42a904ddc707e8750706a4c9341c65b","abstract_canon_sha256":"f055f1b94bc0562aced5b347d3c0c2c904305dfe354c62497a96d6a3ceb2c99c"},"schema_version":"1.0"},"canonical_sha256":"06305fc6773d2f16527aa7b700e215ac1617a511fc908055c8c7cca6e16bbb1f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:15:51.795165Z","signature_b64":"sBNF702+HNPVQ1ojLWovPDv0muhELpZKNwobVDOJdu2Tcn0xyiFovUcoNwXRfvbbUljozVbVDDZWVc/hElJoDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"06305fc6773d2f16527aa7b700e215ac1617a511fc908055c8c7cca6e16bbb1f","last_reissued_at":"2026-05-18T01:15:51.794590Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:15:51.794590Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1512.03057","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:15:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0TjBiDqrk4eyo5PY4LfPF7rPm1r/x2nhGrtky9nl41dcScK59FWxnEUf255yvKaNroIsTbRrd6y6PiZ4UPWEAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T19:02:30.333597Z"},"content_sha256":"4e44c11819005a90217522998590a094d56032be6018eff2083bbc593a2635b5","schema_version":"1.0","event_id":"sha256:4e44c11819005a90217522998590a094d56032be6018eff2083bbc593a2635b5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:AYYF7RTXHUXRMUT2U63QBYQVVQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Exploring the SDSS Photometric Galaxies with Clustering Redshifts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Alexander J. Mendez, Brice M\\'enard, Christopher B. Morrison, Mubdi Rahman, Ryan Scranton, Samuel J. Schmidt, Tam\\'as Budav\\'ari","submitted_at":"2015-12-09T21:00:01Z","abstract_excerpt":"We apply clustering-based redshift inference to all extended sources from the Sloan Digital Sky Survey photometric catalogue, down to magnitude r = 22. We map the relationships between colours and redshift, without assumption of the sources' spectral energy distributions (SED). We identify and locate star-forming, quiescent galaxies, and AGN, as well as colour changes due to spectral features, such as the 4000 \\AA{} break, redshifting through specific filters. Our mapping is globally in good agreement with colour-redshift tracks computed with SED templates, but reveals informative differences,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.03057","kind":"arxiv","version":2},"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":"2026-05-18T01:15:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TdKDqi5lU1ruSlrJmjAyb73PXEiaCdqkkmODh+hzu2zpF7stPAk5dUfhHV0W5W3tjKpwhMg3R3IcMuWnZQ8yAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T19:02:30.334482Z"},"content_sha256":"ff88aa2d70da1dd48fd8a0dfcf6c746e7ec61998c626c009c2dea83871476c0f","schema_version":"1.0","event_id":"sha256:ff88aa2d70da1dd48fd8a0dfcf6c746e7ec61998c626c009c2dea83871476c0f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AYYF7RTXHUXRMUT2U63QBYQVVQ/bundle.json","state_url":"https://pith.science/pith/AYYF7RTXHUXRMUT2U63QBYQVVQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AYYF7RTXHUXRMUT2U63QBYQVVQ/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":"2026-08-12T19:02:30Z","links":{"resolver":"https://pith.science/pith/AYYF7RTXHUXRMUT2U63QBYQVVQ","bundle":"https://pith.science/pith/AYYF7RTXHUXRMUT2U63QBYQVVQ/bundle.json","state":"https://pith.science/pith/AYYF7RTXHUXRMUT2U63QBYQVVQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AYYF7RTXHUXRMUT2U63QBYQVVQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:AYYF7RTXHUXRMUT2U63QBYQVVQ","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":"f055f1b94bc0562aced5b347d3c0c2c904305dfe354c62497a96d6a3ceb2c99c","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-12-09T21:00:01Z","title_canon_sha256":"3e87b2fe99e03688d5829b012d66efbab42a904ddc707e8750706a4c9341c65b"},"schema_version":"1.0","source":{"id":"1512.03057","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.03057","created_at":"2026-05-18T01:15:51Z"},{"alias_kind":"arxiv_version","alias_value":"1512.03057v2","created_at":"2026-05-18T01:15:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.03057","created_at":"2026-05-18T01:15:51Z"},{"alias_kind":"pith_short_12","alias_value":"AYYF7RTXHUXR","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"AYYF7RTXHUXRMUT2","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"AYYF7RTX","created_at":"2026-05-18T12:29:14Z"}],"graph_snapshots":[{"event_id":"sha256:ff88aa2d70da1dd48fd8a0dfcf6c746e7ec61998c626c009c2dea83871476c0f","target":"graph","created_at":"2026-05-18T01:15:51Z","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 apply clustering-based redshift inference to all extended sources from the Sloan Digital Sky Survey photometric catalogue, down to magnitude r = 22. We map the relationships between colours and redshift, without assumption of the sources' spectral energy distributions (SED). We identify and locate star-forming, quiescent galaxies, and AGN, as well as colour changes due to spectral features, such as the 4000 \\AA{} break, redshifting through specific filters. Our mapping is globally in good agreement with colour-redshift tracks computed with SED templates, but reveals informative differences,","authors_text":"Alexander J. Mendez, Brice M\\'enard, Christopher B. Morrison, Mubdi Rahman, Ryan Scranton, Samuel J. Schmidt, Tam\\'as Budav\\'ari","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-12-09T21:00:01Z","title":"Exploring the SDSS Photometric Galaxies with Clustering Redshifts"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.03057","kind":"arxiv","version":2},"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":"sha256:4e44c11819005a90217522998590a094d56032be6018eff2083bbc593a2635b5","target":"record","created_at":"2026-05-18T01:15:51Z","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":"f055f1b94bc0562aced5b347d3c0c2c904305dfe354c62497a96d6a3ceb2c99c","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-12-09T21:00:01Z","title_canon_sha256":"3e87b2fe99e03688d5829b012d66efbab42a904ddc707e8750706a4c9341c65b"},"schema_version":"1.0","source":{"id":"1512.03057","kind":"arxiv","version":2}},"canonical_sha256":"06305fc6773d2f16527aa7b700e215ac1617a511fc908055c8c7cca6e16bbb1f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"06305fc6773d2f16527aa7b700e215ac1617a511fc908055c8c7cca6e16bbb1f","first_computed_at":"2026-05-18T01:15:51.794590Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:15:51.794590Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sBNF702+HNPVQ1ojLWovPDv0muhELpZKNwobVDOJdu2Tcn0xyiFovUcoNwXRfvbbUljozVbVDDZWVc/hElJoDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:15:51.795165Z","signed_message":"canonical_sha256_bytes"},"source_id":"1512.03057","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4e44c11819005a90217522998590a094d56032be6018eff2083bbc593a2635b5","sha256:ff88aa2d70da1dd48fd8a0dfcf6c746e7ec61998c626c009c2dea83871476c0f"],"state_sha256":"d05e1919f428d1435a8ce31ab167d5d7848e52782a162ec0eafb4256226750fe"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xmtsJQiS649rd1/r8Is9BQf7i/k5OQPPDqBNeQHz3pq5xGNq0iZ1Zf88rFEbQawmjcF96B0sKq6aA/wQA0ySDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T19:02:30.343659Z","bundle_sha256":"f01cd0d4a6098b7970333877435b14e07c824acd6ef1b9acfa67f01236d0c3af"}}