{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:2IBKK4QOYQD3NS6U5GXRBVM4ZR","short_pith_number":"pith:2IBKK4QO","canonical_record":{"source":{"id":"2007.15635","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-07-30T17:55:30Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"f82da4d1762d84cebc7147047c4bb917ab9fb0e7f09c40e2b5c82d85fe9dc9d7","abstract_canon_sha256":"64f0fec141129901b16e25e3be2699c8ae56d916e3c2c21c8c856b09d666782a"},"schema_version":"1.0"},"canonical_sha256":"d202a5720ec407b6cbd4e9af10d59ccc663b833fd28c5f7e725ae7eac3ab7c00","source":{"kind":"arxiv","id":"2007.15635","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.15635","created_at":"2026-07-05T02:25:21Z"},{"alias_kind":"arxiv_version","alias_value":"2007.15635v2","created_at":"2026-07-05T02:25:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.15635","created_at":"2026-07-05T02:25:21Z"},{"alias_kind":"pith_short_12","alias_value":"2IBKK4QOYQD3","created_at":"2026-07-05T02:25:21Z"},{"alias_kind":"pith_short_16","alias_value":"2IBKK4QOYQD3NS6U","created_at":"2026-07-05T02:25:21Z"},{"alias_kind":"pith_short_8","alias_value":"2IBKK4QO","created_at":"2026-07-05T02:25:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:2IBKK4QOYQD3NS6U5GXRBVM4ZR","target":"record","payload":{"canonical_record":{"source":{"id":"2007.15635","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-07-30T17:55:30Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"f82da4d1762d84cebc7147047c4bb917ab9fb0e7f09c40e2b5c82d85fe9dc9d7","abstract_canon_sha256":"64f0fec141129901b16e25e3be2699c8ae56d916e3c2c21c8c856b09d666782a"},"schema_version":"1.0"},"canonical_sha256":"d202a5720ec407b6cbd4e9af10d59ccc663b833fd28c5f7e725ae7eac3ab7c00","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:25:21.398933Z","signature_b64":"wQEZOkkDR1axuc3oJxCNzJJWQY2FEk24c8/xy0xVu23cjfA3EkOD4YvzueIHJWUnnEBimd0ooAJhGcwB7eH4BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d202a5720ec407b6cbd4e9af10d59ccc663b833fd28c5f7e725ae7eac3ab7c00","last_reissued_at":"2026-07-05T02:25:21.398408Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:25:21.398408Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2007.15635","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":"2026-07-05T02:25:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PQ/55qVOfP+RoZmhafIlyzYiMbtXFa384jvR26snWIhmNKbglkCESWq48ZYScRjkiS21T7xb13MgpZi2I7WmDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T19:53:46.199023Z"},"content_sha256":"22299c416347a62d00ef5bf497500c626c50c712b47aeb0726b3514a2fb295e3","schema_version":"1.0","event_id":"sha256:22299c416347a62d00ef5bf497500c626c50c712b47aeb0726b3514a2fb295e3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:2IBKK4QOYQD3NS6U5GXRBVM4ZR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"KiDS-1000 catalogue: Redshift distributions and their calibration","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.CO","authors_text":"A. Dvornik, A. H. Wright, A. Kannawadi, B. Giblin, B. Joachimi, C.-A. Lin, C. Blake, C. Heymans, F. Getman, H. Hildebrandt, H.-Y. Shan, J. L. van den Busch, J. T. A. de Jong, K. Kuijken, M. Asgari, M. Bilicki, T. Erben, T. Tr\\\"oster","submitted_at":"2020-07-30T17:55:30Z","abstract_excerpt":"We present redshift distribution estimates of galaxies selected from the fourth data release of the Kilo-Degree Survey over an area of $\\sim1000$ deg$^2$ (KiDS-1000). These redshift distributions represent one of the crucial ingredients for weak gravitational lensing measurements with the KiDS-1000 data. The primary estimate is based on deep spectroscopic reference catalogues that are re-weighted with the help of a self-organising map (SOM) to closely resemble the KiDS-1000 sources, split into five tomographic redshift bins in the photometric redshift range $0.1<z_\\mathrm{B}\\le1.2$. Sources ar"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.15635","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2007.15635/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T02:25:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xVuyundwFZX7m0cQeleQq8KLLrtc+zHL48D3WNv8uzUsyFT+a2LLsOWJJXJeoPlCz73BiJJOr1iMrlkqx2geDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T19:53:46.200039Z"},"content_sha256":"d162468a4454214bfde560f329f2600728d700f23ff51d9fdb43efd6739c7077","schema_version":"1.0","event_id":"sha256:d162468a4454214bfde560f329f2600728d700f23ff51d9fdb43efd6739c7077"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2IBKK4QOYQD3NS6U5GXRBVM4ZR/bundle.json","state_url":"https://pith.science/pith/2IBKK4QOYQD3NS6U5GXRBVM4ZR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2IBKK4QOYQD3NS6U5GXRBVM4ZR/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":"2026-08-18T19:53:46Z","links":{"resolver":"https://pith.science/pith/2IBKK4QOYQD3NS6U5GXRBVM4ZR","bundle":"https://pith.science/pith/2IBKK4QOYQD3NS6U5GXRBVM4ZR/bundle.json","state":"https://pith.science/pith/2IBKK4QOYQD3NS6U5GXRBVM4ZR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2IBKK4QOYQD3NS6U5GXRBVM4ZR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:2IBKK4QOYQD3NS6U5GXRBVM4ZR","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":"64f0fec141129901b16e25e3be2699c8ae56d916e3c2c21c8c856b09d666782a","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-07-30T17:55:30Z","title_canon_sha256":"f82da4d1762d84cebc7147047c4bb917ab9fb0e7f09c40e2b5c82d85fe9dc9d7"},"schema_version":"1.0","source":{"id":"2007.15635","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.15635","created_at":"2026-07-05T02:25:21Z"},{"alias_kind":"arxiv_version","alias_value":"2007.15635v2","created_at":"2026-07-05T02:25:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.15635","created_at":"2026-07-05T02:25:21Z"},{"alias_kind":"pith_short_12","alias_value":"2IBKK4QOYQD3","created_at":"2026-07-05T02:25:21Z"},{"alias_kind":"pith_short_16","alias_value":"2IBKK4QOYQD3NS6U","created_at":"2026-07-05T02:25:21Z"},{"alias_kind":"pith_short_8","alias_value":"2IBKK4QO","created_at":"2026-07-05T02:25:21Z"}],"graph_snapshots":[{"event_id":"sha256:d162468a4454214bfde560f329f2600728d700f23ff51d9fdb43efd6739c7077","target":"graph","created_at":"2026-07-05T02:25:21Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2007.15635/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present redshift distribution estimates of galaxies selected from the fourth data release of the Kilo-Degree Survey over an area of $\\sim1000$ deg$^2$ (KiDS-1000). These redshift distributions represent one of the crucial ingredients for weak gravitational lensing measurements with the KiDS-1000 data. The primary estimate is based on deep spectroscopic reference catalogues that are re-weighted with the help of a self-organising map (SOM) to closely resemble the KiDS-1000 sources, split into five tomographic redshift bins in the photometric redshift range $0.1<z_\\mathrm{B}\\le1.2$. Sources ar","authors_text":"A. Dvornik, A. H. Wright, A. Kannawadi, B. Giblin, B. Joachimi, C.-A. Lin, C. Blake, C. Heymans, F. Getman, H. Hildebrandt, H.-Y. Shan, J. L. van den Busch, J. T. A. de Jong, K. Kuijken, M. Asgari, M. Bilicki, T. Erben, T. Tr\\\"oster","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-07-30T17:55:30Z","title":"KiDS-1000 catalogue: Redshift distributions and their calibration"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.15635","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":"sha256:22299c416347a62d00ef5bf497500c626c50c712b47aeb0726b3514a2fb295e3","target":"record","created_at":"2026-07-05T02:25:21Z","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":"64f0fec141129901b16e25e3be2699c8ae56d916e3c2c21c8c856b09d666782a","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-07-30T17:55:30Z","title_canon_sha256":"f82da4d1762d84cebc7147047c4bb917ab9fb0e7f09c40e2b5c82d85fe9dc9d7"},"schema_version":"1.0","source":{"id":"2007.15635","kind":"arxiv","version":2}},"canonical_sha256":"d202a5720ec407b6cbd4e9af10d59ccc663b833fd28c5f7e725ae7eac3ab7c00","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d202a5720ec407b6cbd4e9af10d59ccc663b833fd28c5f7e725ae7eac3ab7c00","first_computed_at":"2026-07-05T02:25:21.398408Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:25:21.398408Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wQEZOkkDR1axuc3oJxCNzJJWQY2FEk24c8/xy0xVu23cjfA3EkOD4YvzueIHJWUnnEBimd0ooAJhGcwB7eH4BA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:25:21.398933Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.15635","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:22299c416347a62d00ef5bf497500c626c50c712b47aeb0726b3514a2fb295e3","sha256:d162468a4454214bfde560f329f2600728d700f23ff51d9fdb43efd6739c7077"],"state_sha256":"11cd8a2fc3554d182200bf6e71658df19845fc7497195808470b2fef52eb885f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q2rvjOvEydv2t1m2lQaKusDx59iVbHH1ic/UokcviT0AquJMP1ehiyJVhOR8pJBEIJSxlA9goINmNxbpq9h5CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T19:53:46.207833Z","bundle_sha256":"43822ee255940e5dff0e5a85d4b0f5f0738e6cb0647ef812503e64968d892b91"}}