{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:WOE3FII5WTK5CFR57PSG5PLZ54","short_pith_number":"pith:WOE3FII5","canonical_record":{"source":{"id":"1708.06356","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-08-21T18:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"310cf49fbb6c3fbdd15ac3b703fc8932e57d86c309947a300d47c9e6b14ab259","abstract_canon_sha256":"16645b41cf259ad1ff0079be9fb7b0423f2d58044ce85ecf91d74046f0f52add"},"schema_version":"1.0"},"canonical_sha256":"b389b2a11db4d5d1163dfbe46ebd79ef0417520b53feb0a9c6909129f8ffdff5","source":{"kind":"arxiv","id":"1708.06356","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.06356","created_at":"2026-05-18T00:31:40Z"},{"alias_kind":"arxiv_version","alias_value":"1708.06356v1","created_at":"2026-05-18T00:31:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.06356","created_at":"2026-05-18T00:31:40Z"},{"alias_kind":"pith_short_12","alias_value":"WOE3FII5WTK5","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_16","alias_value":"WOE3FII5WTK5CFR5","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_8","alias_value":"WOE3FII5","created_at":"2026-05-18T12:31:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:WOE3FII5WTK5CFR57PSG5PLZ54","target":"record","payload":{"canonical_record":{"source":{"id":"1708.06356","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-08-21T18:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"310cf49fbb6c3fbdd15ac3b703fc8932e57d86c309947a300d47c9e6b14ab259","abstract_canon_sha256":"16645b41cf259ad1ff0079be9fb7b0423f2d58044ce85ecf91d74046f0f52add"},"schema_version":"1.0"},"canonical_sha256":"b389b2a11db4d5d1163dfbe46ebd79ef0417520b53feb0a9c6909129f8ffdff5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:31:40.098004Z","signature_b64":"kC9LS0QHwPyov19/v8axBt/XGaUDimh0EL34C5J1RS9106jFwTe7awpPBfNfXUrbEaro01fnTbv6wbvUnf0uCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b389b2a11db4d5d1163dfbe46ebd79ef0417520b53feb0a9c6909129f8ffdff5","last_reissued_at":"2026-05-18T00:31:40.097432Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:31:40.097432Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1708.06356","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":"2026-05-18T00:31:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JNFsM78Xtg7XNVzM9WSvzyC5zzELw03fQhVa+I7RsFJ9jtp2DfMIKX0Wr3wubrdd7d1TyYN5ftzEHchBPlYFDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T10:53:41.713443Z"},"content_sha256":"90578226bc8e14a472e030a00d6f79c9bb9791fa8bdf6bf770c3efcbb0fa6f0d","schema_version":"1.0","event_id":"sha256:90578226bc8e14a472e030a00d6f79c9bb9791fa8bdf6bf770c3efcbb0fa6f0d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:WOE3FII5WTK5CFR57PSG5PLZ54","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Canada-France Imaging Survey: First results from the u-band component","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Alan McConnachie, Annie C. Robin, Ariane Lan\\c{c}on, Beno\\^it Famaey, Celine Reyl\\'e, Chris Pritchet, Douglas Scott, Edouard Bernard, Elisabetta Caffau, Else Starkenburg, Florence Durret, Francois Hammer, Geraint Lewis, Guillaume Thomas, Harvey Richer, Henry McCracken, Jean-Charles Cuillandre, Julio Navarro, Khyati Malhan, Kim Venn, Kristine Spekkens, Marcin Sawicki, Michael J. Hudson, Misha Haywood, Nicholas Fantin, Nicolas F. Martin, Paola Di Matteo, Patrick C\\^ot\\'e, Piercarlo Bonifacio, Piere Bergeron, Pierre-Alain Duc, Raymond Carlberg, R\\'emi Cabanac, Rodrigo Ibata, Rub\\'en S\\'anchez Jannsen, Sandrine Pires, Scott Chapman, S\\'ebastien Frabbro, Simona Mei, Stephen Gwyn, Vanessa Hill, Vivien Scottez, Volker Beckmann, Yannick Mellier","submitted_at":"2017-08-21T18:00:02Z","abstract_excerpt":"The Canada-France Imaging Survey (CFIS) will map the northern high Galactic latitude sky in the $u$-band (\"CFIS-u\", 10,000$\\, {\\rm deg^2}$) and in the $r$-band (\"CFIS-r\", 5,000$\\, {\\rm deg^2}$), enabling a host of stand-alone science investigations, and providing some of the ground-based data necessary for photometric redshift determination for the Euclid mission. In this first contribution we present the $u$-band component of the survey, describe the observational strategy, and discuss some first highlight results, based on approximately one third of the final area. We show that the Galactic "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.06356","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":"2026-05-18T00:31:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O7eyMFxJ8WWRYM821P41PnN7SRSuRjdHA8wlNuzd/t7OL3RZHvHUM42KXx+R6HsYOJ35lxGypiZnjbeKsQgYDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T10:53:41.714171Z"},"content_sha256":"4a25a742dabd395ce22b0d06c4961c85c58d08c17b360ce4f4effaef408ba7a9","schema_version":"1.0","event_id":"sha256:4a25a742dabd395ce22b0d06c4961c85c58d08c17b360ce4f4effaef408ba7a9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WOE3FII5WTK5CFR57PSG5PLZ54/bundle.json","state_url":"https://pith.science/pith/WOE3FII5WTK5CFR57PSG5PLZ54/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WOE3FII5WTK5CFR57PSG5PLZ54/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":"2026-05-23T10:53:41Z","links":{"resolver":"https://pith.science/pith/WOE3FII5WTK5CFR57PSG5PLZ54","bundle":"https://pith.science/pith/WOE3FII5WTK5CFR57PSG5PLZ54/bundle.json","state":"https://pith.science/pith/WOE3FII5WTK5CFR57PSG5PLZ54/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WOE3FII5WTK5CFR57PSG5PLZ54/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:WOE3FII5WTK5CFR57PSG5PLZ54","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":"16645b41cf259ad1ff0079be9fb7b0423f2d58044ce85ecf91d74046f0f52add","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-08-21T18:00:02Z","title_canon_sha256":"310cf49fbb6c3fbdd15ac3b703fc8932e57d86c309947a300d47c9e6b14ab259"},"schema_version":"1.0","source":{"id":"1708.06356","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.06356","created_at":"2026-05-18T00:31:40Z"},{"alias_kind":"arxiv_version","alias_value":"1708.06356v1","created_at":"2026-05-18T00:31:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.06356","created_at":"2026-05-18T00:31:40Z"},{"alias_kind":"pith_short_12","alias_value":"WOE3FII5WTK5","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_16","alias_value":"WOE3FII5WTK5CFR5","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_8","alias_value":"WOE3FII5","created_at":"2026-05-18T12:31:53Z"}],"graph_snapshots":[{"event_id":"sha256:4a25a742dabd395ce22b0d06c4961c85c58d08c17b360ce4f4effaef408ba7a9","target":"graph","created_at":"2026-05-18T00:31:40Z","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":"The Canada-France Imaging Survey (CFIS) will map the northern high Galactic latitude sky in the $u$-band (\"CFIS-u\", 10,000$\\, {\\rm deg^2}$) and in the $r$-band (\"CFIS-r\", 5,000$\\, {\\rm deg^2}$), enabling a host of stand-alone science investigations, and providing some of the ground-based data necessary for photometric redshift determination for the Euclid mission. In this first contribution we present the $u$-band component of the survey, describe the observational strategy, and discuss some first highlight results, based on approximately one third of the final area. We show that the Galactic ","authors_text":"Alan McConnachie, Annie C. Robin, Ariane Lan\\c{c}on, Beno\\^it Famaey, Celine Reyl\\'e, Chris Pritchet, Douglas Scott, Edouard Bernard, Elisabetta Caffau, Else Starkenburg, Florence Durret, Francois Hammer, Geraint Lewis, Guillaume Thomas, Harvey Richer, Henry McCracken, Jean-Charles Cuillandre, Julio Navarro, Khyati Malhan, Kim Venn, Kristine Spekkens, Marcin Sawicki, Michael J. Hudson, Misha Haywood, Nicholas Fantin, Nicolas F. Martin, Paola Di Matteo, Patrick C\\^ot\\'e, Piercarlo Bonifacio, Piere Bergeron, Pierre-Alain Duc, Raymond Carlberg, R\\'emi Cabanac, Rodrigo Ibata, Rub\\'en S\\'anchez Jannsen, Sandrine Pires, Scott Chapman, S\\'ebastien Frabbro, Simona Mei, Stephen Gwyn, Vanessa Hill, Vivien Scottez, Volker Beckmann, Yannick Mellier","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-08-21T18:00:02Z","title":"The Canada-France Imaging Survey: First results from the u-band component"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.06356","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":"sha256:90578226bc8e14a472e030a00d6f79c9bb9791fa8bdf6bf770c3efcbb0fa6f0d","target":"record","created_at":"2026-05-18T00:31:40Z","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":"16645b41cf259ad1ff0079be9fb7b0423f2d58044ce85ecf91d74046f0f52add","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-08-21T18:00:02Z","title_canon_sha256":"310cf49fbb6c3fbdd15ac3b703fc8932e57d86c309947a300d47c9e6b14ab259"},"schema_version":"1.0","source":{"id":"1708.06356","kind":"arxiv","version":1}},"canonical_sha256":"b389b2a11db4d5d1163dfbe46ebd79ef0417520b53feb0a9c6909129f8ffdff5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b389b2a11db4d5d1163dfbe46ebd79ef0417520b53feb0a9c6909129f8ffdff5","first_computed_at":"2026-05-18T00:31:40.097432Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:31:40.097432Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kC9LS0QHwPyov19/v8axBt/XGaUDimh0EL34C5J1RS9106jFwTe7awpPBfNfXUrbEaro01fnTbv6wbvUnf0uCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:31:40.098004Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.06356","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:90578226bc8e14a472e030a00d6f79c9bb9791fa8bdf6bf770c3efcbb0fa6f0d","sha256:4a25a742dabd395ce22b0d06c4961c85c58d08c17b360ce4f4effaef408ba7a9"],"state_sha256":"b5c097167b6103c980d7b6fce73f0e76362232024f6682d39e9dab8f65cf3a4c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ktoJXhHziGG/LfNIuh+/iQR7u61zKWb9TDwH6RYmbakix6//xd8upVm8bxAteTNaqd9cD3ekazSyoMnc8RBIDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-23T10:53:41.718373Z","bundle_sha256":"d58775da143cae1decc4c67987d6d91048ec0fadc9d31f305634ece52e6e4e07"}}