{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:SJMD4LR35EQCMFYYD3POPRJHXC","short_pith_number":"pith:SJMD4LR3","canonical_record":{"source":{"id":"1705.05096","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2017-05-15T07:32:54Z","cross_cats_sorted":[],"title_canon_sha256":"5e286ee3b4fd13d6644cfe6f89d9050192a372bf76aac0bdf2c9acddbe1560b9","abstract_canon_sha256":"8123078f1f13df5170003287e1c840c3ec1a286a7d30ca1bf432a2a522a09c64"},"schema_version":"1.0"},"canonical_sha256":"92583e2e3be9202617181edee7c527b8819165ab40bc4be030121c50a8b45e78","source":{"kind":"arxiv","id":"1705.05096","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.05096","created_at":"2026-05-17T23:44:15Z"},{"alias_kind":"arxiv_version","alias_value":"1705.05096v1","created_at":"2026-05-17T23:44:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.05096","created_at":"2026-05-17T23:44:15Z"},{"alias_kind":"pith_short_12","alias_value":"SJMD4LR35EQC","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"SJMD4LR35EQCMFYY","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"SJMD4LR3","created_at":"2026-05-18T12:31:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:SJMD4LR35EQCMFYYD3POPRJHXC","target":"record","payload":{"canonical_record":{"source":{"id":"1705.05096","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2017-05-15T07:32:54Z","cross_cats_sorted":[],"title_canon_sha256":"5e286ee3b4fd13d6644cfe6f89d9050192a372bf76aac0bdf2c9acddbe1560b9","abstract_canon_sha256":"8123078f1f13df5170003287e1c840c3ec1a286a7d30ca1bf432a2a522a09c64"},"schema_version":"1.0"},"canonical_sha256":"92583e2e3be9202617181edee7c527b8819165ab40bc4be030121c50a8b45e78","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:44:15.704500Z","signature_b64":"sjNX/3n7ejfQ37bqGu4e05FAOqp60yH067MzyM/SZtoMNErStjQ96tHG89eYUyxEzPefgVqORJly8Y2k0zoTCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"92583e2e3be9202617181edee7c527b8819165ab40bc4be030121c50a8b45e78","last_reissued_at":"2026-05-17T23:44:15.704042Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:44:15.704042Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1705.05096","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":"2026-05-17T23:44:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+aLc7dCINZ5/1oAu7da8yaIDH6DGyGXRzcHzM88usWMkuENat73NABnRhKAPoTgBFfL3n6KM8nrZWIRh5ZISDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T04:18:55.669891Z"},"content_sha256":"0d345ce5074cd85ea0a08cd99528e45b0c574e67d9c5c3b6a9febf91a2e24e0d","schema_version":"1.0","event_id":"sha256:0d345ce5074cd85ea0a08cd99528e45b0c574e67d9c5c3b6a9febf91a2e24e0d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:SJMD4LR35EQCMFYYD3POPRJHXC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Reading the Sky and The Spiral of Teaching and Learning in Astronomy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ed-ph","authors_text":"Urban Eriksson","submitted_at":"2017-05-15T07:32:54Z","abstract_excerpt":"This theoretical paper introduces a new way to view and characterize teaching and learning astronomy. It describes a framework, based on results from empirical data, analyzed through standard qualitative research methodology, in which a theoretical model for vital competencies of learning astronomy is proposed: Reading the Sky. This model takes into account not only disciplinary knowledge but also disciplinary discernment and extrapolating three-dimensionality. Together, these constitute the foundation for the competency referred to as Reading the Sky. In this paper, I describe these concepts "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.05096","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":"2026-05-17T23:44:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2AXk18VkG5yXPaG2qzjfUfj66BhVvHXRIj5/lEMfPHlO9AO/65SokBwjJ2a6eOFsfwCdHUVV7XnzVrXTZQ2cBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T04:18:55.670232Z"},"content_sha256":"5614b10a940c87d86f66f1680e21951d1360832dc2454d90c55e72129280e6e1","schema_version":"1.0","event_id":"sha256:5614b10a940c87d86f66f1680e21951d1360832dc2454d90c55e72129280e6e1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SJMD4LR35EQCMFYYD3POPRJHXC/bundle.json","state_url":"https://pith.science/pith/SJMD4LR35EQCMFYYD3POPRJHXC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SJMD4LR35EQCMFYYD3POPRJHXC/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":"2026-06-02T04:18:55Z","links":{"resolver":"https://pith.science/pith/SJMD4LR35EQCMFYYD3POPRJHXC","bundle":"https://pith.science/pith/SJMD4LR35EQCMFYYD3POPRJHXC/bundle.json","state":"https://pith.science/pith/SJMD4LR35EQCMFYYD3POPRJHXC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SJMD4LR35EQCMFYYD3POPRJHXC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:SJMD4LR35EQCMFYYD3POPRJHXC","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":"8123078f1f13df5170003287e1c840c3ec1a286a7d30ca1bf432a2a522a09c64","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2017-05-15T07:32:54Z","title_canon_sha256":"5e286ee3b4fd13d6644cfe6f89d9050192a372bf76aac0bdf2c9acddbe1560b9"},"schema_version":"1.0","source":{"id":"1705.05096","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.05096","created_at":"2026-05-17T23:44:15Z"},{"alias_kind":"arxiv_version","alias_value":"1705.05096v1","created_at":"2026-05-17T23:44:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.05096","created_at":"2026-05-17T23:44:15Z"},{"alias_kind":"pith_short_12","alias_value":"SJMD4LR35EQC","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"SJMD4LR35EQCMFYY","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"SJMD4LR3","created_at":"2026-05-18T12:31:43Z"}],"graph_snapshots":[{"event_id":"sha256:5614b10a940c87d86f66f1680e21951d1360832dc2454d90c55e72129280e6e1","target":"graph","created_at":"2026-05-17T23:44:15Z","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":"This theoretical paper introduces a new way to view and characterize teaching and learning astronomy. It describes a framework, based on results from empirical data, analyzed through standard qualitative research methodology, in which a theoretical model for vital competencies of learning astronomy is proposed: Reading the Sky. This model takes into account not only disciplinary knowledge but also disciplinary discernment and extrapolating three-dimensionality. Together, these constitute the foundation for the competency referred to as Reading the Sky. In this paper, I describe these concepts ","authors_text":"Urban Eriksson","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2017-05-15T07:32:54Z","title":"Reading the Sky and The Spiral of Teaching and Learning in Astronomy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.05096","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":"sha256:0d345ce5074cd85ea0a08cd99528e45b0c574e67d9c5c3b6a9febf91a2e24e0d","target":"record","created_at":"2026-05-17T23:44:15Z","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":"8123078f1f13df5170003287e1c840c3ec1a286a7d30ca1bf432a2a522a09c64","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2017-05-15T07:32:54Z","title_canon_sha256":"5e286ee3b4fd13d6644cfe6f89d9050192a372bf76aac0bdf2c9acddbe1560b9"},"schema_version":"1.0","source":{"id":"1705.05096","kind":"arxiv","version":1}},"canonical_sha256":"92583e2e3be9202617181edee7c527b8819165ab40bc4be030121c50a8b45e78","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"92583e2e3be9202617181edee7c527b8819165ab40bc4be030121c50a8b45e78","first_computed_at":"2026-05-17T23:44:15.704042Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:44:15.704042Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sjNX/3n7ejfQ37bqGu4e05FAOqp60yH067MzyM/SZtoMNErStjQ96tHG89eYUyxEzPefgVqORJly8Y2k0zoTCw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:44:15.704500Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.05096","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0d345ce5074cd85ea0a08cd99528e45b0c574e67d9c5c3b6a9febf91a2e24e0d","sha256:5614b10a940c87d86f66f1680e21951d1360832dc2454d90c55e72129280e6e1"],"state_sha256":"3eeb76d5b3cc27704e4dc9a153965e96967934daa13fbe1b13ab64bed161d33d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xpPXlEITgyL2Ilv+gnSFyMOcTB8HCeltQviGdKnusowT2l+3AJC5qYTCH+F+4uNoR/d5AZq9jZeqdBBirMGwCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T04:18:55.672283Z","bundle_sha256":"933d6f310ff171aebff35a23a44912e1c94a0bab8e63a36154efebfb87ea5dcd"}}