{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:MZM6PPGYCKFRLUCQIZJV5WJROO","short_pith_number":"pith:MZM6PPGY","canonical_record":{"source":{"id":"1210.7893","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-10-30T03:00:52Z","cross_cats_sorted":[],"title_canon_sha256":"4442cbdbeac403f8a46a041b5a25332791b2407f3d8a800956c78826aad9e11a","abstract_canon_sha256":"005de611e2e24457e1e8fff11b0833b014485f031d7bf93218a36c2142e82ede"},"schema_version":"1.0"},"canonical_sha256":"6659e7bcd8128b15d05046535ed93173b12d2f07576ba0603686e07f2a041120","source":{"kind":"arxiv","id":"1210.7893","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.7893","created_at":"2026-05-18T03:41:57Z"},{"alias_kind":"arxiv_version","alias_value":"1210.7893v1","created_at":"2026-05-18T03:41:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.7893","created_at":"2026-05-18T03:41:57Z"},{"alias_kind":"pith_short_12","alias_value":"MZM6PPGYCKFR","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"MZM6PPGYCKFRLUCQ","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"MZM6PPGY","created_at":"2026-05-18T12:27:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:MZM6PPGYCKFRLUCQIZJV5WJROO","target":"record","payload":{"canonical_record":{"source":{"id":"1210.7893","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-10-30T03:00:52Z","cross_cats_sorted":[],"title_canon_sha256":"4442cbdbeac403f8a46a041b5a25332791b2407f3d8a800956c78826aad9e11a","abstract_canon_sha256":"005de611e2e24457e1e8fff11b0833b014485f031d7bf93218a36c2142e82ede"},"schema_version":"1.0"},"canonical_sha256":"6659e7bcd8128b15d05046535ed93173b12d2f07576ba0603686e07f2a041120","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:41:57.762580Z","signature_b64":"moe8x8o4N9UlfV8amc0HjI1hC2Fcv39cdXFTqafNada7vMjJJY8lcN9y2mg7lEx8dmJDCwoThjShiAsBrsGIDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6659e7bcd8128b15d05046535ed93173b12d2f07576ba0603686e07f2a041120","last_reissued_at":"2026-05-18T03:41:57.761714Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:41:57.761714Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1210.7893","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":"2026-05-18T03:41:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2CKVA+T0iEAREEJkmoicJuZPnLeICjAJPYig5NgaiiIj0W6we7iQ92c2I3OmK5co18YLdSCPtSRJs0Q5P+HwDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-03T13:31:48.419371Z"},"content_sha256":"62c36a0639c20f08bafa13301be0decc155a3dec69dd4f3696248203ac000df5","schema_version":"1.0","event_id":"sha256:62c36a0639c20f08bafa13301be0decc155a3dec69dd4f3696248203ac000df5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:MZM6PPGYCKFRLUCQIZJV5WJROO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A catalogue of Paschen-line profiles in standard stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"George Wallerstein, Myra Stone, Wenjin Huang","submitted_at":"2012-10-30T03:00:52Z","abstract_excerpt":"We have assembled an atlas of line profiles of the Paschen Delta line at 10,049 angstroms for the use of stellar modelling. For a few stars we have substituted the Paschen Gamma line at 10,938 angstroms because the Paschen Delta line blends with other features. Most of the targets are standard stars of spectral types from B to M. A few metal-poor stars have been included. For many of the stars we have also observed the Hydrogen Alpha line so as to compare the profiles of lines originating from the meta-stable n=2 level with lines originating from the n=3 level. The greatest difference in line "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.7893","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":"2026-05-18T03:41:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2eQE6mDNs8A32TnUBwF9vy1319pY6LmuJZQ++3nhA6Dqks4h8Puh4ueoiw3rtDZaYv1an96AYaYKpYVSKKYHCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-03T13:31:48.419722Z"},"content_sha256":"a351a632aa9dae4b0ecf94006f7fb883fb6ac9eeac50d989815bcc831dec8ef4","schema_version":"1.0","event_id":"sha256:a351a632aa9dae4b0ecf94006f7fb883fb6ac9eeac50d989815bcc831dec8ef4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MZM6PPGYCKFRLUCQIZJV5WJROO/bundle.json","state_url":"https://pith.science/pith/MZM6PPGYCKFRLUCQIZJV5WJROO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MZM6PPGYCKFRLUCQIZJV5WJROO/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":"2026-07-03T13:31:48Z","links":{"resolver":"https://pith.science/pith/MZM6PPGYCKFRLUCQIZJV5WJROO","bundle":"https://pith.science/pith/MZM6PPGYCKFRLUCQIZJV5WJROO/bundle.json","state":"https://pith.science/pith/MZM6PPGYCKFRLUCQIZJV5WJROO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MZM6PPGYCKFRLUCQIZJV5WJROO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:MZM6PPGYCKFRLUCQIZJV5WJROO","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":"005de611e2e24457e1e8fff11b0833b014485f031d7bf93218a36c2142e82ede","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-10-30T03:00:52Z","title_canon_sha256":"4442cbdbeac403f8a46a041b5a25332791b2407f3d8a800956c78826aad9e11a"},"schema_version":"1.0","source":{"id":"1210.7893","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.7893","created_at":"2026-05-18T03:41:57Z"},{"alias_kind":"arxiv_version","alias_value":"1210.7893v1","created_at":"2026-05-18T03:41:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.7893","created_at":"2026-05-18T03:41:57Z"},{"alias_kind":"pith_short_12","alias_value":"MZM6PPGYCKFR","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"MZM6PPGYCKFRLUCQ","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"MZM6PPGY","created_at":"2026-05-18T12:27:14Z"}],"graph_snapshots":[{"event_id":"sha256:a351a632aa9dae4b0ecf94006f7fb883fb6ac9eeac50d989815bcc831dec8ef4","target":"graph","created_at":"2026-05-18T03:41:57Z","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":"We have assembled an atlas of line profiles of the Paschen Delta line at 10,049 angstroms for the use of stellar modelling. For a few stars we have substituted the Paschen Gamma line at 10,938 angstroms because the Paschen Delta line blends with other features. Most of the targets are standard stars of spectral types from B to M. A few metal-poor stars have been included. For many of the stars we have also observed the Hydrogen Alpha line so as to compare the profiles of lines originating from the meta-stable n=2 level with lines originating from the n=3 level. The greatest difference in line ","authors_text":"George Wallerstein, Myra Stone, Wenjin Huang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-10-30T03:00:52Z","title":"A catalogue of Paschen-line profiles in standard stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.7893","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":"sha256:62c36a0639c20f08bafa13301be0decc155a3dec69dd4f3696248203ac000df5","target":"record","created_at":"2026-05-18T03:41:57Z","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":"005de611e2e24457e1e8fff11b0833b014485f031d7bf93218a36c2142e82ede","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-10-30T03:00:52Z","title_canon_sha256":"4442cbdbeac403f8a46a041b5a25332791b2407f3d8a800956c78826aad9e11a"},"schema_version":"1.0","source":{"id":"1210.7893","kind":"arxiv","version":1}},"canonical_sha256":"6659e7bcd8128b15d05046535ed93173b12d2f07576ba0603686e07f2a041120","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6659e7bcd8128b15d05046535ed93173b12d2f07576ba0603686e07f2a041120","first_computed_at":"2026-05-18T03:41:57.761714Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:41:57.761714Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"moe8x8o4N9UlfV8amc0HjI1hC2Fcv39cdXFTqafNada7vMjJJY8lcN9y2mg7lEx8dmJDCwoThjShiAsBrsGIDg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:41:57.762580Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.7893","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:62c36a0639c20f08bafa13301be0decc155a3dec69dd4f3696248203ac000df5","sha256:a351a632aa9dae4b0ecf94006f7fb883fb6ac9eeac50d989815bcc831dec8ef4"],"state_sha256":"15967d469cb6bfeb04634d318ee6632e78e85e69f9c6281082b7e72234feffda"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5gW4fT0hlC4qgVm6jkP0Hckef8Yy1252+IZojDq2w3PdJRO+cLyRfUYo6OjpaR2B/t5d+FxKnyBrnYC1rAZcDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-03T13:31:48.421613Z","bundle_sha256":"bccef13334c296bbe6270d3fed34b4b90238196dcf53fc8673e8c839045c62c9"}}