{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:AKXNYRBMOT5KYKUTRKQUZ5SDCC","short_pith_number":"pith:AKXNYRBM","canonical_record":{"source":{"id":"1611.02579","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-11-08T16:02:54Z","cross_cats_sorted":[],"title_canon_sha256":"6fa92119608608ab266aaafa470d6d0bd66d6a32edc292953d156f42c13cd7c1","abstract_canon_sha256":"ccb14000b0fe6cc2f9f8436e54ab5ee56657699efbc6f26f4324dcd6d6a90bcb"},"schema_version":"1.0"},"canonical_sha256":"02aedc442c74faac2a938aa14cf64310bb818d10615d95544d96f8545f6374db","source":{"kind":"arxiv","id":"1611.02579","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.02579","created_at":"2026-05-18T00:59:51Z"},{"alias_kind":"arxiv_version","alias_value":"1611.02579v1","created_at":"2026-05-18T00:59:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.02579","created_at":"2026-05-18T00:59:51Z"},{"alias_kind":"pith_short_12","alias_value":"AKXNYRBMOT5K","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_16","alias_value":"AKXNYRBMOT5KYKUT","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_8","alias_value":"AKXNYRBM","created_at":"2026-05-18T12:30:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:AKXNYRBMOT5KYKUTRKQUZ5SDCC","target":"record","payload":{"canonical_record":{"source":{"id":"1611.02579","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-11-08T16:02:54Z","cross_cats_sorted":[],"title_canon_sha256":"6fa92119608608ab266aaafa470d6d0bd66d6a32edc292953d156f42c13cd7c1","abstract_canon_sha256":"ccb14000b0fe6cc2f9f8436e54ab5ee56657699efbc6f26f4324dcd6d6a90bcb"},"schema_version":"1.0"},"canonical_sha256":"02aedc442c74faac2a938aa14cf64310bb818d10615d95544d96f8545f6374db","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:59:51.596036Z","signature_b64":"lxz5o8Mpk6nD7q46TYoQR2uOMLEyGaz749j+SpWApp3TadHnnD8oPyIAjdeViHOoKH3T9YSyiiFftUMe594pBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"02aedc442c74faac2a938aa14cf64310bb818d10615d95544d96f8545f6374db","last_reissued_at":"2026-05-18T00:59:51.595355Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:59:51.595355Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1611.02579","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":"2026-05-18T00:59:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X86xsCq01Z1YIc83dPDp/FlFVZ7E11xOLfyPQsIvuiwBPLi9tkmsdLzKHyhf88rAhPTu0vp8GUV6p4ow6KFLCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T06:23:53.396552Z"},"content_sha256":"6054910eed53cf9469bc1973ee0712e006b2b358c4186593e6d80bcde614cac5","schema_version":"1.0","event_id":"sha256:6054910eed53cf9469bc1973ee0712e006b2b358c4186593e6d80bcde614cac5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:AKXNYRBMOT5KYKUTRKQUZ5SDCC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Seismology of an Ensemble of ZZ Ceti Stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Bart H. Dunlap, J. C. Clemens, J. J. Hermes, P. C. O'Brien","submitted_at":"2016-11-08T16:02:54Z","abstract_excerpt":"We combine all the reliably-measured eigenperiods for hot, short-period ZZ Ceti stars onto one diagram and show that it has the features expected from evolutionary and pulsation theory. To make a more detailed comparison with theory we concentrate on a subset of 16 stars for which rotational splitting or other evidence gives clues to the spherical harmonic index (l) of the modes. The suspected l=1 periods in this subset of stars form a pattern of consecutive radial overtones that allow us to conduct ensemble seismology using published theoretical model grids. We find that the best-matching mod"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.02579","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":"2026-05-18T00:59:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hfJp4p8zofQhz+a04VGGPSnrKhT8tHfkadR8fJXlgy4h48BMpQiHEr8oklIJ2Ji8rjDL61rHIo3dHUXoqMBJDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T06:23:53.397159Z"},"content_sha256":"ae6642f10277004e18ca7e6004f00b5b581da1907b0f122f2ad8cd333440a1a2","schema_version":"1.0","event_id":"sha256:ae6642f10277004e18ca7e6004f00b5b581da1907b0f122f2ad8cd333440a1a2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AKXNYRBMOT5KYKUTRKQUZ5SDCC/bundle.json","state_url":"https://pith.science/pith/AKXNYRBMOT5KYKUTRKQUZ5SDCC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AKXNYRBMOT5KYKUTRKQUZ5SDCC/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":"2026-06-06T06:23:53Z","links":{"resolver":"https://pith.science/pith/AKXNYRBMOT5KYKUTRKQUZ5SDCC","bundle":"https://pith.science/pith/AKXNYRBMOT5KYKUTRKQUZ5SDCC/bundle.json","state":"https://pith.science/pith/AKXNYRBMOT5KYKUTRKQUZ5SDCC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AKXNYRBMOT5KYKUTRKQUZ5SDCC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:AKXNYRBMOT5KYKUTRKQUZ5SDCC","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":"ccb14000b0fe6cc2f9f8436e54ab5ee56657699efbc6f26f4324dcd6d6a90bcb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-11-08T16:02:54Z","title_canon_sha256":"6fa92119608608ab266aaafa470d6d0bd66d6a32edc292953d156f42c13cd7c1"},"schema_version":"1.0","source":{"id":"1611.02579","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.02579","created_at":"2026-05-18T00:59:51Z"},{"alias_kind":"arxiv_version","alias_value":"1611.02579v1","created_at":"2026-05-18T00:59:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.02579","created_at":"2026-05-18T00:59:51Z"},{"alias_kind":"pith_short_12","alias_value":"AKXNYRBMOT5K","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_16","alias_value":"AKXNYRBMOT5KYKUT","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_8","alias_value":"AKXNYRBM","created_at":"2026-05-18T12:30:07Z"}],"graph_snapshots":[{"event_id":"sha256:ae6642f10277004e18ca7e6004f00b5b581da1907b0f122f2ad8cd333440a1a2","target":"graph","created_at":"2026-05-18T00:59:51Z","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 combine all the reliably-measured eigenperiods for hot, short-period ZZ Ceti stars onto one diagram and show that it has the features expected from evolutionary and pulsation theory. To make a more detailed comparison with theory we concentrate on a subset of 16 stars for which rotational splitting or other evidence gives clues to the spherical harmonic index (l) of the modes. The suspected l=1 periods in this subset of stars form a pattern of consecutive radial overtones that allow us to conduct ensemble seismology using published theoretical model grids. We find that the best-matching mod","authors_text":"Bart H. Dunlap, J. C. Clemens, J. J. Hermes, P. C. O'Brien","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-11-08T16:02:54Z","title":"Seismology of an Ensemble of ZZ Ceti Stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.02579","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":"sha256:6054910eed53cf9469bc1973ee0712e006b2b358c4186593e6d80bcde614cac5","target":"record","created_at":"2026-05-18T00:59:51Z","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":"ccb14000b0fe6cc2f9f8436e54ab5ee56657699efbc6f26f4324dcd6d6a90bcb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-11-08T16:02:54Z","title_canon_sha256":"6fa92119608608ab266aaafa470d6d0bd66d6a32edc292953d156f42c13cd7c1"},"schema_version":"1.0","source":{"id":"1611.02579","kind":"arxiv","version":1}},"canonical_sha256":"02aedc442c74faac2a938aa14cf64310bb818d10615d95544d96f8545f6374db","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"02aedc442c74faac2a938aa14cf64310bb818d10615d95544d96f8545f6374db","first_computed_at":"2026-05-18T00:59:51.595355Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:59:51.595355Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lxz5o8Mpk6nD7q46TYoQR2uOMLEyGaz749j+SpWApp3TadHnnD8oPyIAjdeViHOoKH3T9YSyiiFftUMe594pBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:59:51.596036Z","signed_message":"canonical_sha256_bytes"},"source_id":"1611.02579","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6054910eed53cf9469bc1973ee0712e006b2b358c4186593e6d80bcde614cac5","sha256:ae6642f10277004e18ca7e6004f00b5b581da1907b0f122f2ad8cd333440a1a2"],"state_sha256":"47d056f168ec30a61ad76297f53bd550683a6263f731854c5e5b2f87765bca69"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lXEyMQoZKArSdbJgYEkR5U7jtnplm+aByaQLp8/HI/M+7Tvf9Wlil7Stx22J/D3hSmVKv5m7anVZ3a2ren3IAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T06:23:53.401148Z","bundle_sha256":"993317585e7ec544a55f491552db83f47b67c6d571651ebfe453c358a7b6dbde"}}