{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:E7TXBSFOIRUJFPAGBXTLRZCB7D","short_pith_number":"pith:E7TXBSFO","canonical_record":{"source":{"id":"1408.4284","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-08-19T10:31:14Z","cross_cats_sorted":[],"title_canon_sha256":"1d1700b5ed85ab05c5afa5bc3fd11395d4a7dbe067bd4c2a6b8c60e103713567","abstract_canon_sha256":"1b6debed19a2003cbf3a5307b6cd4a42ecf9d46789cb5610eea31fcaa5e00316"},"schema_version":"1.0"},"canonical_sha256":"27e770c8ae446892bc060de6b8e441f8fde07fa63fbc150b6a8eb043343cfcb1","source":{"kind":"arxiv","id":"1408.4284","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.4284","created_at":"2026-05-18T01:42:17Z"},{"alias_kind":"arxiv_version","alias_value":"1408.4284v2","created_at":"2026-05-18T01:42:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.4284","created_at":"2026-05-18T01:42:17Z"},{"alias_kind":"pith_short_12","alias_value":"E7TXBSFOIRUJ","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_16","alias_value":"E7TXBSFOIRUJFPAG","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_8","alias_value":"E7TXBSFO","created_at":"2026-05-18T12:28:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:E7TXBSFOIRUJFPAGBXTLRZCB7D","target":"record","payload":{"canonical_record":{"source":{"id":"1408.4284","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-08-19T10:31:14Z","cross_cats_sorted":[],"title_canon_sha256":"1d1700b5ed85ab05c5afa5bc3fd11395d4a7dbe067bd4c2a6b8c60e103713567","abstract_canon_sha256":"1b6debed19a2003cbf3a5307b6cd4a42ecf9d46789cb5610eea31fcaa5e00316"},"schema_version":"1.0"},"canonical_sha256":"27e770c8ae446892bc060de6b8e441f8fde07fa63fbc150b6a8eb043343cfcb1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:42:17.456071Z","signature_b64":"y4aMutk0oip0ZNY8pQRCYF0Nz0oSkOgWYJ+XLywhRAR0DQkMMqWFeMGnUp+K6amkV598uLQg2Hv8r4ljs//HAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"27e770c8ae446892bc060de6b8e441f8fde07fa63fbc150b6a8eb043343cfcb1","last_reissued_at":"2026-05-18T01:42:17.455401Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:42:17.455401Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1408.4284","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":"2026-05-18T01:42:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WR8oLxxWCbRYU3vO3tA0I4V3HLRtI3QCMsnB6VLXcS7sSe5CvGwdU46TcKIV+/8IlgBkWodTWyJ8hHKVd+fpDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T06:01:41.251606Z"},"content_sha256":"835003480bb779a08576564aa3e1be2a417c781c4e7f42bb630c78103d944d0c","schema_version":"1.0","event_id":"sha256:835003480bb779a08576564aa3e1be2a417c781c4e7f42bb630c78103d944d0c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:E7TXBSFOIRUJFPAGBXTLRZCB7D","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Theoretical Study of Acoustic Glitches in Low-Mass Main-Sequence Stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Anwesh Mazumdar, H. M. Antia, Kuldeep Verma, Sarbani Basu","submitted_at":"2014-08-19T10:31:14Z","abstract_excerpt":"There are regions in stars, such as ionization zones and the interface between radiative and convective regions, that cause a localized sharp variation in the sound speed. These are known as \"acoustic glitches\". Acoustic glitches leave their signatures on the oscillation frequencies of stars, and hence these signature can be used as diagnostics of these regions. In particular, the signature of these glitches can be used as diagnostics of the position of the second helium ionization zone and that of the base of the envelope convection zone. With the help of stellar models we study the propertie"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.4284","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":"2026-05-18T01:42:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zY7l+zeDlslhp+OQulGmXdQDE9o+vD1CriCn/W3HPFfaEuHmc2fN/UuySjEsotfQcxADj1LOiiRWwsIiAqoJBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T06:01:41.252384Z"},"content_sha256":"05fbc8fe8f21fe7d4cf191a5ee99d106ba301a2b18d38f139871a57d9f01cf65","schema_version":"1.0","event_id":"sha256:05fbc8fe8f21fe7d4cf191a5ee99d106ba301a2b18d38f139871a57d9f01cf65"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/E7TXBSFOIRUJFPAGBXTLRZCB7D/bundle.json","state_url":"https://pith.science/pith/E7TXBSFOIRUJFPAGBXTLRZCB7D/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/E7TXBSFOIRUJFPAGBXTLRZCB7D/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":"2026-06-10T06:01:41Z","links":{"resolver":"https://pith.science/pith/E7TXBSFOIRUJFPAGBXTLRZCB7D","bundle":"https://pith.science/pith/E7TXBSFOIRUJFPAGBXTLRZCB7D/bundle.json","state":"https://pith.science/pith/E7TXBSFOIRUJFPAGBXTLRZCB7D/state.json","well_known_bundle":"https://pith.science/.well-known/pith/E7TXBSFOIRUJFPAGBXTLRZCB7D/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:E7TXBSFOIRUJFPAGBXTLRZCB7D","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":"1b6debed19a2003cbf3a5307b6cd4a42ecf9d46789cb5610eea31fcaa5e00316","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-08-19T10:31:14Z","title_canon_sha256":"1d1700b5ed85ab05c5afa5bc3fd11395d4a7dbe067bd4c2a6b8c60e103713567"},"schema_version":"1.0","source":{"id":"1408.4284","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.4284","created_at":"2026-05-18T01:42:17Z"},{"alias_kind":"arxiv_version","alias_value":"1408.4284v2","created_at":"2026-05-18T01:42:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.4284","created_at":"2026-05-18T01:42:17Z"},{"alias_kind":"pith_short_12","alias_value":"E7TXBSFOIRUJ","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_16","alias_value":"E7TXBSFOIRUJFPAG","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_8","alias_value":"E7TXBSFO","created_at":"2026-05-18T12:28:25Z"}],"graph_snapshots":[{"event_id":"sha256:05fbc8fe8f21fe7d4cf191a5ee99d106ba301a2b18d38f139871a57d9f01cf65","target":"graph","created_at":"2026-05-18T01:42:17Z","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":"There are regions in stars, such as ionization zones and the interface between radiative and convective regions, that cause a localized sharp variation in the sound speed. These are known as \"acoustic glitches\". Acoustic glitches leave their signatures on the oscillation frequencies of stars, and hence these signature can be used as diagnostics of these regions. In particular, the signature of these glitches can be used as diagnostics of the position of the second helium ionization zone and that of the base of the envelope convection zone. With the help of stellar models we study the propertie","authors_text":"Anwesh Mazumdar, H. M. Antia, Kuldeep Verma, Sarbani Basu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-08-19T10:31:14Z","title":"A Theoretical Study of Acoustic Glitches in Low-Mass Main-Sequence Stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.4284","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":"sha256:835003480bb779a08576564aa3e1be2a417c781c4e7f42bb630c78103d944d0c","target":"record","created_at":"2026-05-18T01:42:17Z","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":"1b6debed19a2003cbf3a5307b6cd4a42ecf9d46789cb5610eea31fcaa5e00316","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-08-19T10:31:14Z","title_canon_sha256":"1d1700b5ed85ab05c5afa5bc3fd11395d4a7dbe067bd4c2a6b8c60e103713567"},"schema_version":"1.0","source":{"id":"1408.4284","kind":"arxiv","version":2}},"canonical_sha256":"27e770c8ae446892bc060de6b8e441f8fde07fa63fbc150b6a8eb043343cfcb1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"27e770c8ae446892bc060de6b8e441f8fde07fa63fbc150b6a8eb043343cfcb1","first_computed_at":"2026-05-18T01:42:17.455401Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:42:17.455401Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"y4aMutk0oip0ZNY8pQRCYF0Nz0oSkOgWYJ+XLywhRAR0DQkMMqWFeMGnUp+K6amkV598uLQg2Hv8r4ljs//HAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:42:17.456071Z","signed_message":"canonical_sha256_bytes"},"source_id":"1408.4284","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:835003480bb779a08576564aa3e1be2a417c781c4e7f42bb630c78103d944d0c","sha256:05fbc8fe8f21fe7d4cf191a5ee99d106ba301a2b18d38f139871a57d9f01cf65"],"state_sha256":"4a4cf546294c5b691f2de9620d705aeac436f22d264cb15537bf88154e2cfeb5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PgIjfNZV4ciEFkXRS1TMOfeNvb70tjyEYOkEmthmfDc+BcR7B+jCOQj0sF3isygXhhnwPQeAd/FualUuaz6HDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T06:01:41.256424Z","bundle_sha256":"0388c370783781285e526f1039073a5226dd1b2143940128a38557d12ac60710"}}