{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:FOI6D3ODBOL6JPVMW76M7EJTYW","short_pith_number":"pith:FOI6D3OD","canonical_record":{"source":{"id":"1509.08652","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-09-29T09:13:13Z","cross_cats_sorted":[],"title_canon_sha256":"17a5e3ba556c776316cfc2f55186045f9aa23d6361c04d8bf67d660a9de80db3","abstract_canon_sha256":"e32389b18b246a5d89eab032a77106ea88c23e77d6c2c66fe1fd05e7d574c453"},"schema_version":"1.0"},"canonical_sha256":"2b91e1edc30b97e4beacb7fccf9133c58fb5ecf62a312df4d11cdd148446ba60","source":{"kind":"arxiv","id":"1509.08652","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.08652","created_at":"2026-05-18T01:27:22Z"},{"alias_kind":"arxiv_version","alias_value":"1509.08652v1","created_at":"2026-05-18T01:27:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.08652","created_at":"2026-05-18T01:27:22Z"},{"alias_kind":"pith_short_12","alias_value":"FOI6D3ODBOL6","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_16","alias_value":"FOI6D3ODBOL6JPVM","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_8","alias_value":"FOI6D3OD","created_at":"2026-05-18T12:29:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:FOI6D3ODBOL6JPVMW76M7EJTYW","target":"record","payload":{"canonical_record":{"source":{"id":"1509.08652","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-09-29T09:13:13Z","cross_cats_sorted":[],"title_canon_sha256":"17a5e3ba556c776316cfc2f55186045f9aa23d6361c04d8bf67d660a9de80db3","abstract_canon_sha256":"e32389b18b246a5d89eab032a77106ea88c23e77d6c2c66fe1fd05e7d574c453"},"schema_version":"1.0"},"canonical_sha256":"2b91e1edc30b97e4beacb7fccf9133c58fb5ecf62a312df4d11cdd148446ba60","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:27:22.437192Z","signature_b64":"fuaNLOFL1ujNFOO7vFRC/Ijjq0n9qgQpyjnkgpEwjlFgVw+DvdW9tBdByL+UpEKS+C5gr7BgbdopHHcuKdcWCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2b91e1edc30b97e4beacb7fccf9133c58fb5ecf62a312df4d11cdd148446ba60","last_reissued_at":"2026-05-18T01:27:22.436752Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:27:22.436752Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1509.08652","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":"2026-05-18T01:27:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1TECDRW+vGTEdCHf5GiISvaynPJajQr0BS2nB9MBTuAWPVVx4uWQ3PKeKXqTeTsVN/phP/3Jrny78HgEEwANAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T19:43:32.939582Z"},"content_sha256":"ffa6ebc00d4b0e1b70d2d1a059946a8de55a3a101b05cba04054adca689c6031","schema_version":"1.0","event_id":"sha256:ffa6ebc00d4b0e1b70d2d1a059946a8de55a3a101b05cba04054adca689c6031"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:FOI6D3ODBOL6JPVMW76M7EJTYW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Impact of Enhanced Iron Opacity on Massive Star Pulsations: Updated Instability Strips","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Ehsan Moravveji","submitted_at":"2015-09-29T09:13:13Z","abstract_excerpt":"Recently, Bailey et al. (2015) made a direct measurement of the Iron opacity at the physical conditions of the solar tachocline. They found that the wavelength-integrated Iron opacity is roughly 75% higher that what the OP and OPAL models predict. Here, we compute new opacity tables with enhanced Iron and Nickel contributions to the Rosseland mean opacity by 75% each, and compute three dense MESA grids of evolutionary models for Galactic O- and B-type stars covering from 2.5 to 25 M$_\\odot$ from ZAMS until $T_{\\rm eff}=10\\,000$ K after the core hydrogen exhaustion. We carry out non-adiabatic m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.08652","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":"2026-05-18T01:27:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"didk0X6Jtcsjev4/6VCjG8r/Aklh8VDuxgj/mBRD58B1pb6mGuxkeyHULdYF04jRFeqlCgtGzxByCol5Fd9vDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T19:43:32.939923Z"},"content_sha256":"8468fc155f1466fe40797b109bceeab45eaf9e618e92e08b88583c691eb11aa9","schema_version":"1.0","event_id":"sha256:8468fc155f1466fe40797b109bceeab45eaf9e618e92e08b88583c691eb11aa9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FOI6D3ODBOL6JPVMW76M7EJTYW/bundle.json","state_url":"https://pith.science/pith/FOI6D3ODBOL6JPVMW76M7EJTYW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FOI6D3ODBOL6JPVMW76M7EJTYW/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":"2026-06-27T19:43:32Z","links":{"resolver":"https://pith.science/pith/FOI6D3ODBOL6JPVMW76M7EJTYW","bundle":"https://pith.science/pith/FOI6D3ODBOL6JPVMW76M7EJTYW/bundle.json","state":"https://pith.science/pith/FOI6D3ODBOL6JPVMW76M7EJTYW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FOI6D3ODBOL6JPVMW76M7EJTYW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:FOI6D3ODBOL6JPVMW76M7EJTYW","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":"e32389b18b246a5d89eab032a77106ea88c23e77d6c2c66fe1fd05e7d574c453","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-09-29T09:13:13Z","title_canon_sha256":"17a5e3ba556c776316cfc2f55186045f9aa23d6361c04d8bf67d660a9de80db3"},"schema_version":"1.0","source":{"id":"1509.08652","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.08652","created_at":"2026-05-18T01:27:22Z"},{"alias_kind":"arxiv_version","alias_value":"1509.08652v1","created_at":"2026-05-18T01:27:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.08652","created_at":"2026-05-18T01:27:22Z"},{"alias_kind":"pith_short_12","alias_value":"FOI6D3ODBOL6","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_16","alias_value":"FOI6D3ODBOL6JPVM","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_8","alias_value":"FOI6D3OD","created_at":"2026-05-18T12:29:19Z"}],"graph_snapshots":[{"event_id":"sha256:8468fc155f1466fe40797b109bceeab45eaf9e618e92e08b88583c691eb11aa9","target":"graph","created_at":"2026-05-18T01:27:22Z","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":"Recently, Bailey et al. (2015) made a direct measurement of the Iron opacity at the physical conditions of the solar tachocline. They found that the wavelength-integrated Iron opacity is roughly 75% higher that what the OP and OPAL models predict. Here, we compute new opacity tables with enhanced Iron and Nickel contributions to the Rosseland mean opacity by 75% each, and compute three dense MESA grids of evolutionary models for Galactic O- and B-type stars covering from 2.5 to 25 M$_\\odot$ from ZAMS until $T_{\\rm eff}=10\\,000$ K after the core hydrogen exhaustion. We carry out non-adiabatic m","authors_text":"Ehsan Moravveji","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-09-29T09:13:13Z","title":"The Impact of Enhanced Iron Opacity on Massive Star Pulsations: Updated Instability Strips"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.08652","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:ffa6ebc00d4b0e1b70d2d1a059946a8de55a3a101b05cba04054adca689c6031","target":"record","created_at":"2026-05-18T01:27:22Z","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":"e32389b18b246a5d89eab032a77106ea88c23e77d6c2c66fe1fd05e7d574c453","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-09-29T09:13:13Z","title_canon_sha256":"17a5e3ba556c776316cfc2f55186045f9aa23d6361c04d8bf67d660a9de80db3"},"schema_version":"1.0","source":{"id":"1509.08652","kind":"arxiv","version":1}},"canonical_sha256":"2b91e1edc30b97e4beacb7fccf9133c58fb5ecf62a312df4d11cdd148446ba60","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2b91e1edc30b97e4beacb7fccf9133c58fb5ecf62a312df4d11cdd148446ba60","first_computed_at":"2026-05-18T01:27:22.436752Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:27:22.436752Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fuaNLOFL1ujNFOO7vFRC/Ijjq0n9qgQpyjnkgpEwjlFgVw+DvdW9tBdByL+UpEKS+C5gr7BgbdopHHcuKdcWCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:27:22.437192Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.08652","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ffa6ebc00d4b0e1b70d2d1a059946a8de55a3a101b05cba04054adca689c6031","sha256:8468fc155f1466fe40797b109bceeab45eaf9e618e92e08b88583c691eb11aa9"],"state_sha256":"4727800a19ca16e2cbc8d31490dea7b6ed450cb9bdddf47b705b716245ef642a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1kjO0YrL/Ip5TCpO0fF6KYE143SCODkiEj+y+IUmgh8Lywntwo5NUkftxBSMw+i7CNMjvlaP0AZlItWToMlKAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-27T19:43:32.941812Z","bundle_sha256":"23f7837ec2afcd2c259cb3d1e09b8cc7557aee9264657c27a433d4d83d2fc8a3"}}