{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:DQGAGHK6W4NASM3K3SQBZUPRFT","short_pith_number":"pith:DQGAGHK6","canonical_record":{"source":{"id":"1710.08461","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2017-10-23T19:06:22Z","cross_cats_sorted":[],"title_canon_sha256":"c98742af7d50dc6c412160c622ff750fafdb296ba3e2a556cadb5576372ba30f","abstract_canon_sha256":"d7a95f60a0d898b459de8c1e7772206e54d6958afbddc7e39184c88c027cc01e"},"schema_version":"1.0"},"canonical_sha256":"1c0c031d5eb71a09336adca01cd1f12ceb631d431e13ae20e2e93ab2e2ae8710","source":{"kind":"arxiv","id":"1710.08461","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.08461","created_at":"2026-05-18T00:14:28Z"},{"alias_kind":"arxiv_version","alias_value":"1710.08461v2","created_at":"2026-05-18T00:14:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.08461","created_at":"2026-05-18T00:14:28Z"},{"alias_kind":"pith_short_12","alias_value":"DQGAGHK6W4NA","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_16","alias_value":"DQGAGHK6W4NASM3K","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_8","alias_value":"DQGAGHK6","created_at":"2026-05-18T12:31:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:DQGAGHK6W4NASM3K3SQBZUPRFT","target":"record","payload":{"canonical_record":{"source":{"id":"1710.08461","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2017-10-23T19:06:22Z","cross_cats_sorted":[],"title_canon_sha256":"c98742af7d50dc6c412160c622ff750fafdb296ba3e2a556cadb5576372ba30f","abstract_canon_sha256":"d7a95f60a0d898b459de8c1e7772206e54d6958afbddc7e39184c88c027cc01e"},"schema_version":"1.0"},"canonical_sha256":"1c0c031d5eb71a09336adca01cd1f12ceb631d431e13ae20e2e93ab2e2ae8710","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:14:28.666386Z","signature_b64":"aUxD5Flq68H5DPyBeVxArQS5NAPZYGCuZYn7Mxd7Uj2ILsXMSwBZxVsX0tvpUlop4I4eVmOOHETo1Ppa/G+kAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1c0c031d5eb71a09336adca01cd1f12ceb631d431e13ae20e2e93ab2e2ae8710","last_reissued_at":"2026-05-18T00:14:28.665660Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:14:28.665660Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1710.08461","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":"2026-05-18T00:14:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4JYuPIwIcFFMQRl7q+i3NQoZy2r/4bXN3R6HpBJpXh6D9hp6mGrLr9v6XfG4wYD4NoejM1cKltB9SZlBm1fWDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T00:16:20.786462Z"},"content_sha256":"acdc202710dffc045c2a8d3a838de48b6156b8b253d1a44e9719ee527997f614","schema_version":"1.0","event_id":"sha256:acdc202710dffc045c2a8d3a838de48b6156b8b253d1a44e9719ee527997f614"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:DQGAGHK6W4NASM3K3SQBZUPRFT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The airglow layer emission altitude cannot be determined unambiguously from temperature comparison with lidars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ao-ph","authors_text":"Tim Dunker","submitted_at":"2017-10-23T19:06:22Z","abstract_excerpt":"I investigate the nightly mean emission height and width of the OH*(3-1) layer by comparing nightly mean temperatures measured by the ground-based spectrometer GRIPS 9 and the Na lidar at ALOMAR. The data set contains 42 coincident measurements between November 2010 and February 2014, when GRIPS 9 was in operation at the ALOMAR observatory (69.3$^\\circ$N, 16.0$^\\circ$E) in northern Norway. To closely resemble the mean temperature measured by GRIPS 9, I weight each nightly mean temperature profile measured by the lidar using Gaussian distributions with 40 different centre altitudes and 40 diffe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.08461","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":"2026-05-18T00:14:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0Arp4P6VTimN0qETM+qmb4BX1oVPbDKj8x/bIK6TFKWmGpgTS26w9GMXfOV1gjePfqTpCdLlPh5OgeZEoZFjBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T00:16:20.786805Z"},"content_sha256":"241a139b793dd7669375c57d1fdf79d380968041d1a3dfcf8b263043a894387c","schema_version":"1.0","event_id":"sha256:241a139b793dd7669375c57d1fdf79d380968041d1a3dfcf8b263043a894387c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DQGAGHK6W4NASM3K3SQBZUPRFT/bundle.json","state_url":"https://pith.science/pith/DQGAGHK6W4NASM3K3SQBZUPRFT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DQGAGHK6W4NASM3K3SQBZUPRFT/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":"2026-06-29T00:16:20Z","links":{"resolver":"https://pith.science/pith/DQGAGHK6W4NASM3K3SQBZUPRFT","bundle":"https://pith.science/pith/DQGAGHK6W4NASM3K3SQBZUPRFT/bundle.json","state":"https://pith.science/pith/DQGAGHK6W4NASM3K3SQBZUPRFT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DQGAGHK6W4NASM3K3SQBZUPRFT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:DQGAGHK6W4NASM3K3SQBZUPRFT","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":"d7a95f60a0d898b459de8c1e7772206e54d6958afbddc7e39184c88c027cc01e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2017-10-23T19:06:22Z","title_canon_sha256":"c98742af7d50dc6c412160c622ff750fafdb296ba3e2a556cadb5576372ba30f"},"schema_version":"1.0","source":{"id":"1710.08461","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.08461","created_at":"2026-05-18T00:14:28Z"},{"alias_kind":"arxiv_version","alias_value":"1710.08461v2","created_at":"2026-05-18T00:14:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.08461","created_at":"2026-05-18T00:14:28Z"},{"alias_kind":"pith_short_12","alias_value":"DQGAGHK6W4NA","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_16","alias_value":"DQGAGHK6W4NASM3K","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_8","alias_value":"DQGAGHK6","created_at":"2026-05-18T12:31:12Z"}],"graph_snapshots":[{"event_id":"sha256:241a139b793dd7669375c57d1fdf79d380968041d1a3dfcf8b263043a894387c","target":"graph","created_at":"2026-05-18T00:14:28Z","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":"I investigate the nightly mean emission height and width of the OH*(3-1) layer by comparing nightly mean temperatures measured by the ground-based spectrometer GRIPS 9 and the Na lidar at ALOMAR. The data set contains 42 coincident measurements between November 2010 and February 2014, when GRIPS 9 was in operation at the ALOMAR observatory (69.3$^\\circ$N, 16.0$^\\circ$E) in northern Norway. To closely resemble the mean temperature measured by GRIPS 9, I weight each nightly mean temperature profile measured by the lidar using Gaussian distributions with 40 different centre altitudes and 40 diffe","authors_text":"Tim Dunker","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2017-10-23T19:06:22Z","title":"The airglow layer emission altitude cannot be determined unambiguously from temperature comparison with lidars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.08461","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:acdc202710dffc045c2a8d3a838de48b6156b8b253d1a44e9719ee527997f614","target":"record","created_at":"2026-05-18T00:14:28Z","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":"d7a95f60a0d898b459de8c1e7772206e54d6958afbddc7e39184c88c027cc01e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2017-10-23T19:06:22Z","title_canon_sha256":"c98742af7d50dc6c412160c622ff750fafdb296ba3e2a556cadb5576372ba30f"},"schema_version":"1.0","source":{"id":"1710.08461","kind":"arxiv","version":2}},"canonical_sha256":"1c0c031d5eb71a09336adca01cd1f12ceb631d431e13ae20e2e93ab2e2ae8710","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1c0c031d5eb71a09336adca01cd1f12ceb631d431e13ae20e2e93ab2e2ae8710","first_computed_at":"2026-05-18T00:14:28.665660Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:14:28.665660Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aUxD5Flq68H5DPyBeVxArQS5NAPZYGCuZYn7Mxd7Uj2ILsXMSwBZxVsX0tvpUlop4I4eVmOOHETo1Ppa/G+kAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:14:28.666386Z","signed_message":"canonical_sha256_bytes"},"source_id":"1710.08461","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:acdc202710dffc045c2a8d3a838de48b6156b8b253d1a44e9719ee527997f614","sha256:241a139b793dd7669375c57d1fdf79d380968041d1a3dfcf8b263043a894387c"],"state_sha256":"d23b067ab1b4881aaae31f60470b8a9d0c47b71a3b4eb4d7c6a38ce6981fad28"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P+R4HoVNHIxvLJ1ixG3A9JC9P7JBmJE3cm/551aQO9+T/Zl1bNGRg7LtfHxSc2235pEE3jkm6Vs8UoAKNOi9Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-29T00:16:20.788670Z","bundle_sha256":"4986f62029ea57dbea91adc24b79df64d075d887625805ed45e98aca4654f291"}}