{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:B4Z6FVC6TQD5NXDLAV3DEERCZ5","short_pith_number":"pith:B4Z6FVC6","canonical_record":{"source":{"id":"2106.12715","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-06-24T01:27:11Z","cross_cats_sorted":[],"title_canon_sha256":"9ca03eab95b0264f45815ef7126c77f45eaabc887e2465fe421b1210b0226f9a","abstract_canon_sha256":"2e8a24cc62310e267d4881f86db221e0cfa622f23a3512f7a306176694c8a530"},"schema_version":"1.0"},"canonical_sha256":"0f33e2d45e9c07d6dc6b0576321222cf4da1838f7e15222b4a82c8096313dfec","source":{"kind":"arxiv","id":"2106.12715","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.12715","created_at":"2026-07-05T03:29:50Z"},{"alias_kind":"arxiv_version","alias_value":"2106.12715v2","created_at":"2026-07-05T03:29:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.12715","created_at":"2026-07-05T03:29:50Z"},{"alias_kind":"pith_short_12","alias_value":"B4Z6FVC6TQD5","created_at":"2026-07-05T03:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"B4Z6FVC6TQD5NXDL","created_at":"2026-07-05T03:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"B4Z6FVC6","created_at":"2026-07-05T03:29:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:B4Z6FVC6TQD5NXDLAV3DEERCZ5","target":"record","payload":{"canonical_record":{"source":{"id":"2106.12715","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-06-24T01:27:11Z","cross_cats_sorted":[],"title_canon_sha256":"9ca03eab95b0264f45815ef7126c77f45eaabc887e2465fe421b1210b0226f9a","abstract_canon_sha256":"2e8a24cc62310e267d4881f86db221e0cfa622f23a3512f7a306176694c8a530"},"schema_version":"1.0"},"canonical_sha256":"0f33e2d45e9c07d6dc6b0576321222cf4da1838f7e15222b4a82c8096313dfec","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:29:50.349287Z","signature_b64":"oemudzDuFZ/CdDyiUsu1SWkBHhpuUWyY9L7+GUE0grQT/ggTmE2f/6FNO0j5TDYucd9NPEoDEaRtpiL2oTLcAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0f33e2d45e9c07d6dc6b0576321222cf4da1838f7e15222b4a82c8096313dfec","last_reissued_at":"2026-07-05T03:29:50.348720Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:29:50.348720Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2106.12715","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":"2026-07-05T03:29:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZQC29ZYCbSPZjzsgLZmHPcZEQ3oEKDwxtNtv+5Jw+yxYwskgT66wCjXOEAdfvjAXyDeBNiNYy1UfEkX9402QDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T19:08:27.613118Z"},"content_sha256":"fa7aba9770ae1830ecb3e111ce63f7f9d80aecbdf8823cd893aaaf30f81b4fb6","schema_version":"1.0","event_id":"sha256:fa7aba9770ae1830ecb3e111ce63f7f9d80aecbdf8823cd893aaaf30f81b4fb6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:B4Z6FVC6TQD5NXDLAV3DEERCZ5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The First Data Release of LAMOST Low Resolution Single Epoch Spectra","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Bo-Liang He, Dong-Wei Fan, Hai-long Yuan, Hao-Tong Zhang, Si-Cheng Yu, Ya-Juan Lei, Yao-Quan Chu, Yi-Qiao Dong, Yong-Heng Zhao, Yong-Hui Hou, Yong Zhang, Zhong-Rui Bai","submitted_at":"2021-06-24T01:27:11Z","abstract_excerpt":"LAMOST Data Release 5, covering $\\sim$17,000 $deg^2$ from $-10^{\\circ}$ to $80^{\\circ}$ in declination, contains 9 millions co-added low resolution spectra of celestial objects, each spectrum combined from repeat exposure of two to tens of times during Oct 2011 to Jun 2017. In this paper, We present the spectra of individual exposures for all the objects in LAMOST Data Release 5. For each spectrum, equivalent width of 60 lines from 11 different elements are calculated with a new method combining the actual line core and fitted line wings. For stars earlier than F type, the Balmer lines are fit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.12715","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/2106.12715/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":"2026-07-05T03:29:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"10yoCnflMPWe/DzH04YfZ42hJxH4gdBWY/yTX9YknDb9rWD0v2DFoRHU++epWWBoL678PWnfpZfDtkqjXKFsBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T19:08:27.613508Z"},"content_sha256":"d622785353e9637366ebb77542f47e0ebd6da89cb0ba3c34d48b8caa7c2d40a1","schema_version":"1.0","event_id":"sha256:d622785353e9637366ebb77542f47e0ebd6da89cb0ba3c34d48b8caa7c2d40a1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/B4Z6FVC6TQD5NXDLAV3DEERCZ5/bundle.json","state_url":"https://pith.science/pith/B4Z6FVC6TQD5NXDLAV3DEERCZ5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/B4Z6FVC6TQD5NXDLAV3DEERCZ5/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":"2026-07-06T19:08:27Z","links":{"resolver":"https://pith.science/pith/B4Z6FVC6TQD5NXDLAV3DEERCZ5","bundle":"https://pith.science/pith/B4Z6FVC6TQD5NXDLAV3DEERCZ5/bundle.json","state":"https://pith.science/pith/B4Z6FVC6TQD5NXDLAV3DEERCZ5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/B4Z6FVC6TQD5NXDLAV3DEERCZ5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:B4Z6FVC6TQD5NXDLAV3DEERCZ5","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":"2e8a24cc62310e267d4881f86db221e0cfa622f23a3512f7a306176694c8a530","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-06-24T01:27:11Z","title_canon_sha256":"9ca03eab95b0264f45815ef7126c77f45eaabc887e2465fe421b1210b0226f9a"},"schema_version":"1.0","source":{"id":"2106.12715","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.12715","created_at":"2026-07-05T03:29:50Z"},{"alias_kind":"arxiv_version","alias_value":"2106.12715v2","created_at":"2026-07-05T03:29:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.12715","created_at":"2026-07-05T03:29:50Z"},{"alias_kind":"pith_short_12","alias_value":"B4Z6FVC6TQD5","created_at":"2026-07-05T03:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"B4Z6FVC6TQD5NXDL","created_at":"2026-07-05T03:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"B4Z6FVC6","created_at":"2026-07-05T03:29:50Z"}],"graph_snapshots":[{"event_id":"sha256:d622785353e9637366ebb77542f47e0ebd6da89cb0ba3c34d48b8caa7c2d40a1","target":"graph","created_at":"2026-07-05T03:29:50Z","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/2106.12715/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"LAMOST Data Release 5, covering $\\sim$17,000 $deg^2$ from $-10^{\\circ}$ to $80^{\\circ}$ in declination, contains 9 millions co-added low resolution spectra of celestial objects, each spectrum combined from repeat exposure of two to tens of times during Oct 2011 to Jun 2017. In this paper, We present the spectra of individual exposures for all the objects in LAMOST Data Release 5. For each spectrum, equivalent width of 60 lines from 11 different elements are calculated with a new method combining the actual line core and fitted line wings. For stars earlier than F type, the Balmer lines are fit","authors_text":"Bo-Liang He, Dong-Wei Fan, Hai-long Yuan, Hao-Tong Zhang, Si-Cheng Yu, Ya-Juan Lei, Yao-Quan Chu, Yi-Qiao Dong, Yong-Heng Zhao, Yong-Hui Hou, Yong Zhang, Zhong-Rui Bai","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-06-24T01:27:11Z","title":"The First Data Release of LAMOST Low Resolution Single Epoch Spectra"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.12715","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:fa7aba9770ae1830ecb3e111ce63f7f9d80aecbdf8823cd893aaaf30f81b4fb6","target":"record","created_at":"2026-07-05T03:29:50Z","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":"2e8a24cc62310e267d4881f86db221e0cfa622f23a3512f7a306176694c8a530","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-06-24T01:27:11Z","title_canon_sha256":"9ca03eab95b0264f45815ef7126c77f45eaabc887e2465fe421b1210b0226f9a"},"schema_version":"1.0","source":{"id":"2106.12715","kind":"arxiv","version":2}},"canonical_sha256":"0f33e2d45e9c07d6dc6b0576321222cf4da1838f7e15222b4a82c8096313dfec","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0f33e2d45e9c07d6dc6b0576321222cf4da1838f7e15222b4a82c8096313dfec","first_computed_at":"2026-07-05T03:29:50.348720Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:29:50.348720Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oemudzDuFZ/CdDyiUsu1SWkBHhpuUWyY9L7+GUE0grQT/ggTmE2f/6FNO0j5TDYucd9NPEoDEaRtpiL2oTLcAA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:29:50.349287Z","signed_message":"canonical_sha256_bytes"},"source_id":"2106.12715","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fa7aba9770ae1830ecb3e111ce63f7f9d80aecbdf8823cd893aaaf30f81b4fb6","sha256:d622785353e9637366ebb77542f47e0ebd6da89cb0ba3c34d48b8caa7c2d40a1"],"state_sha256":"40683a9861d738ba2254b52df82c9265f3fa2f0b781a56a39615fdbf271d7aa4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mPlpMa+vIztOL8OWKAprvRIAp7+bncSirleAvdVgLOxgPJ6MPJbkHr1RYGr7A8MQe4ZOW/R+qm6L6dYpeHIQCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T19:08:27.615372Z","bundle_sha256":"e1b25d91e6b7481ebdb3a0e480668c779dfb6591c44e0c0cd3e65587d7d11cca"}}