{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:5K6S3ET3J5WBSZVMWSFPLP63CD","short_pith_number":"pith:5K6S3ET3","canonical_record":{"source":{"id":"1309.7286","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-09-27T16:14:44Z","cross_cats_sorted":[],"title_canon_sha256":"814bcab33eabdcceb096e5e86bee75fd06dc1535083fbaa99cd40e2f13d34cad","abstract_canon_sha256":"662878e65c121a4daa37af5fb0cba7b86c7a6317e66bc0e1bca88048c1c35229"},"schema_version":"1.0"},"canonical_sha256":"eabd2d927b4f6c1966acb48af5bfdb10f333c4652eb08cfd5994dbb02110253c","source":{"kind":"arxiv","id":"1309.7286","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.7286","created_at":"2026-05-18T01:47:25Z"},{"alias_kind":"arxiv_version","alias_value":"1309.7286v1","created_at":"2026-05-18T01:47:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.7286","created_at":"2026-05-18T01:47:25Z"},{"alias_kind":"pith_short_12","alias_value":"5K6S3ET3J5WB","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"5K6S3ET3J5WBSZVM","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"5K6S3ET3","created_at":"2026-05-18T12:27:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:5K6S3ET3J5WBSZVMWSFPLP63CD","target":"record","payload":{"canonical_record":{"source":{"id":"1309.7286","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-09-27T16:14:44Z","cross_cats_sorted":[],"title_canon_sha256":"814bcab33eabdcceb096e5e86bee75fd06dc1535083fbaa99cd40e2f13d34cad","abstract_canon_sha256":"662878e65c121a4daa37af5fb0cba7b86c7a6317e66bc0e1bca88048c1c35229"},"schema_version":"1.0"},"canonical_sha256":"eabd2d927b4f6c1966acb48af5bfdb10f333c4652eb08cfd5994dbb02110253c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:47:25.477178Z","signature_b64":"i9If1fuFDSqf2d94bsN4pI8ciBBRs4xwB+2Z0hz58IbteERLdvk6gW8BHhqjW2N8jGELjVwYGQBg/YQtBFBUCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eabd2d927b4f6c1966acb48af5bfdb10f333c4652eb08cfd5994dbb02110253c","last_reissued_at":"2026-05-18T01:47:25.476498Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:47:25.476498Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1309.7286","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":"2026-05-18T01:47:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GYr3TOWMHKzqGQgON1XOlJ0tfhgqQUkxIAZ7bk+UPxoNxotDDtS/m+dsL+QN9MgJjhAWsjigEE6dvl/5upRCAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T09:35:21.398752Z"},"content_sha256":"67b951939a7b8be5ad22e22e2dbef35fd5a29db203db3c0c7fa7de8890a9d56e","schema_version":"1.0","event_id":"sha256:67b951939a7b8be5ad22e22e2dbef35fd5a29db203db3c0c7fa7de8890a9d56e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:5K6S3ET3J5WBSZVMWSFPLP63CD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Variable rotational line broadening in the Be star Achernar","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A.C. Carciofi, D. Baade, R.H.D. Townsend, S. \\v{S}tefl, Th. Rivinius","submitted_at":"2013-09-27T16:14:44Z","abstract_excerpt":"The main theoretical problem for the formation of a Keplerian disk around Be stars is how to supply angular momentum from the star to the disk, even more so since Be stars probably rotate somewhat sub-critically. For instance, nonradial pulsation may transport angular momentum to the stellar surface until (part of) this excess supports the disk formation/replenishment. The nearby Be star Achernar is presently building a new disk and offers an excellent opportunity to observe this process from relatively close-up. Spectra from various sources and epochs are scrutinized to identify the salient s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.7286","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":"2026-05-18T01:47:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i2uoZyodu7E4mmUTRyVw/AY1t+7hAY/+D39eG9zqN/D4Uv6CwvtQZ6gcbNARUFOniFzoVycnfQbFRAPyzNfiAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T09:35:21.399480Z"},"content_sha256":"9c683da321c372c7b758d77d694e835e542d2669867ade93db835b2403a19281","schema_version":"1.0","event_id":"sha256:9c683da321c372c7b758d77d694e835e542d2669867ade93db835b2403a19281"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5K6S3ET3J5WBSZVMWSFPLP63CD/bundle.json","state_url":"https://pith.science/pith/5K6S3ET3J5WBSZVMWSFPLP63CD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5K6S3ET3J5WBSZVMWSFPLP63CD/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":"2026-05-19T09:35:21Z","links":{"resolver":"https://pith.science/pith/5K6S3ET3J5WBSZVMWSFPLP63CD","bundle":"https://pith.science/pith/5K6S3ET3J5WBSZVMWSFPLP63CD/bundle.json","state":"https://pith.science/pith/5K6S3ET3J5WBSZVMWSFPLP63CD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5K6S3ET3J5WBSZVMWSFPLP63CD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:5K6S3ET3J5WBSZVMWSFPLP63CD","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":"662878e65c121a4daa37af5fb0cba7b86c7a6317e66bc0e1bca88048c1c35229","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-09-27T16:14:44Z","title_canon_sha256":"814bcab33eabdcceb096e5e86bee75fd06dc1535083fbaa99cd40e2f13d34cad"},"schema_version":"1.0","source":{"id":"1309.7286","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.7286","created_at":"2026-05-18T01:47:25Z"},{"alias_kind":"arxiv_version","alias_value":"1309.7286v1","created_at":"2026-05-18T01:47:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.7286","created_at":"2026-05-18T01:47:25Z"},{"alias_kind":"pith_short_12","alias_value":"5K6S3ET3J5WB","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"5K6S3ET3J5WBSZVM","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"5K6S3ET3","created_at":"2026-05-18T12:27:34Z"}],"graph_snapshots":[{"event_id":"sha256:9c683da321c372c7b758d77d694e835e542d2669867ade93db835b2403a19281","target":"graph","created_at":"2026-05-18T01:47:25Z","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":"The main theoretical problem for the formation of a Keplerian disk around Be stars is how to supply angular momentum from the star to the disk, even more so since Be stars probably rotate somewhat sub-critically. For instance, nonradial pulsation may transport angular momentum to the stellar surface until (part of) this excess supports the disk formation/replenishment. The nearby Be star Achernar is presently building a new disk and offers an excellent opportunity to observe this process from relatively close-up. Spectra from various sources and epochs are scrutinized to identify the salient s","authors_text":"A.C. Carciofi, D. Baade, R.H.D. Townsend, S. \\v{S}tefl, Th. Rivinius","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-09-27T16:14:44Z","title":"Variable rotational line broadening in the Be star Achernar"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.7286","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":"sha256:67b951939a7b8be5ad22e22e2dbef35fd5a29db203db3c0c7fa7de8890a9d56e","target":"record","created_at":"2026-05-18T01:47:25Z","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":"662878e65c121a4daa37af5fb0cba7b86c7a6317e66bc0e1bca88048c1c35229","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-09-27T16:14:44Z","title_canon_sha256":"814bcab33eabdcceb096e5e86bee75fd06dc1535083fbaa99cd40e2f13d34cad"},"schema_version":"1.0","source":{"id":"1309.7286","kind":"arxiv","version":1}},"canonical_sha256":"eabd2d927b4f6c1966acb48af5bfdb10f333c4652eb08cfd5994dbb02110253c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eabd2d927b4f6c1966acb48af5bfdb10f333c4652eb08cfd5994dbb02110253c","first_computed_at":"2026-05-18T01:47:25.476498Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:47:25.476498Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"i9If1fuFDSqf2d94bsN4pI8ciBBRs4xwB+2Z0hz58IbteERLdvk6gW8BHhqjW2N8jGELjVwYGQBg/YQtBFBUCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:47:25.477178Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.7286","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:67b951939a7b8be5ad22e22e2dbef35fd5a29db203db3c0c7fa7de8890a9d56e","sha256:9c683da321c372c7b758d77d694e835e542d2669867ade93db835b2403a19281"],"state_sha256":"dcdd4f31cb8f5f3822d3348008cc2f0f1cbf97b81f3616a950b77c4154074017"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Jzz2JWjw94nGX76MV/pNNfXTxQ+RhTBbZAUAmdUbtkWQCiYLAJM/lYCrxgoXGoKjorq7ocJ0jQk90CpZE0JBDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T09:35:21.402676Z","bundle_sha256":"38227392160befacf717af90f1671a3b245bc2f13dbf6de419924a04e21b1eaa"}}