{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:J3XDWV47VDACK3ELACR4O3ZFBC","short_pith_number":"pith:J3XDWV47","canonical_record":{"source":{"id":"1308.4873","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-08-22T14:14:55Z","cross_cats_sorted":[],"title_canon_sha256":"769f285392e20816071da689f00b175eaf1ceb8599437559229c6026ef9025d1","abstract_canon_sha256":"c2e4102da4506020e1e27cf9503a530741d53d5507e3b514a9a1cce2f36620fc"},"schema_version":"1.0"},"canonical_sha256":"4eee3b579fa8c0256c8b00a3c76f25089bd9732db07bf9a705e2438487b94cb1","source":{"kind":"arxiv","id":"1308.4873","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.4873","created_at":"2026-05-18T03:15:07Z"},{"alias_kind":"arxiv_version","alias_value":"1308.4873v1","created_at":"2026-05-18T03:15:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.4873","created_at":"2026-05-18T03:15:07Z"},{"alias_kind":"pith_short_12","alias_value":"J3XDWV47VDAC","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"J3XDWV47VDACK3EL","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"J3XDWV47","created_at":"2026-05-18T12:27:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:J3XDWV47VDACK3ELACR4O3ZFBC","target":"record","payload":{"canonical_record":{"source":{"id":"1308.4873","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-08-22T14:14:55Z","cross_cats_sorted":[],"title_canon_sha256":"769f285392e20816071da689f00b175eaf1ceb8599437559229c6026ef9025d1","abstract_canon_sha256":"c2e4102da4506020e1e27cf9503a530741d53d5507e3b514a9a1cce2f36620fc"},"schema_version":"1.0"},"canonical_sha256":"4eee3b579fa8c0256c8b00a3c76f25089bd9732db07bf9a705e2438487b94cb1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:15:07.422200Z","signature_b64":"nFMJAiqINgxBxr2Kyl8CwedKeqf6YD89X15n40jBh4QEpI1WUduF8o1k5tolcpM5B+7FBpqZCFuB80jUGLvaCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4eee3b579fa8c0256c8b00a3c76f25089bd9732db07bf9a705e2438487b94cb1","last_reissued_at":"2026-05-18T03:15:07.421243Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:15:07.421243Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1308.4873","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":"2026-05-18T03:15:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+1RY7ViSd4VS4mSzu9nv1iH2W659w/2rTYU44+0fevqAKnRYKwj/IpTeCxamSWoYheANcidyNmZR98KHobtTDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T17:20:02.058832Z"},"content_sha256":"c163926ddf60573b8b52d7d4bdf55a549b2750d068d39f8d98039d8f7732ca17","schema_version":"1.0","event_id":"sha256:c163926ddf60573b8b52d7d4bdf55a549b2750d068d39f8d98039d8f7732ca17"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:J3XDWV47VDACK3ELACR4O3ZFBC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Three-dimensional simulations of near-surface convection in main-sequence stars - II. Properties of granulation and spectral lines","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Ansgar Reiners, Benjamin Beeck, Manfred Sch\\\"ussler, Robert H. Cameron","submitted_at":"2013-08-22T14:14:55Z","abstract_excerpt":"The atmospheres of cool main-sequence stars are structured by convective flows from the convective envelope that penetrate the optically thin layers and lead to structuring of the stellar atmospheres analogous to solar granulation. The flows have considerable influence on the 3D structure of temperature and pressure and affect the profiles of spectral lines formed in the photosphere. For the set of six 3D radiative (M)HD simulations of cool main-sequence stars described in the first paper of this series, we analyse the near-surface layers. We aim at describing the properties of granulation of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.4873","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":"2026-05-18T03:15:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u2Aupbb+d2BsMNx9tqlDHTLHz/PDLvOnw5f5k5xCZocmEYHsNZ9XMKD1ffhwec0sbt0EWMrgo0rirV3Tg0q+Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T17:20:02.059177Z"},"content_sha256":"d828a70dc78d0fe27174bed5875129bb238042ad2394eba223447afdb084b131","schema_version":"1.0","event_id":"sha256:d828a70dc78d0fe27174bed5875129bb238042ad2394eba223447afdb084b131"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/J3XDWV47VDACK3ELACR4O3ZFBC/bundle.json","state_url":"https://pith.science/pith/J3XDWV47VDACK3ELACR4O3ZFBC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/J3XDWV47VDACK3ELACR4O3ZFBC/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":"2026-05-20T17:20:02Z","links":{"resolver":"https://pith.science/pith/J3XDWV47VDACK3ELACR4O3ZFBC","bundle":"https://pith.science/pith/J3XDWV47VDACK3ELACR4O3ZFBC/bundle.json","state":"https://pith.science/pith/J3XDWV47VDACK3ELACR4O3ZFBC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/J3XDWV47VDACK3ELACR4O3ZFBC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:J3XDWV47VDACK3ELACR4O3ZFBC","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":"c2e4102da4506020e1e27cf9503a530741d53d5507e3b514a9a1cce2f36620fc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-08-22T14:14:55Z","title_canon_sha256":"769f285392e20816071da689f00b175eaf1ceb8599437559229c6026ef9025d1"},"schema_version":"1.0","source":{"id":"1308.4873","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.4873","created_at":"2026-05-18T03:15:07Z"},{"alias_kind":"arxiv_version","alias_value":"1308.4873v1","created_at":"2026-05-18T03:15:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.4873","created_at":"2026-05-18T03:15:07Z"},{"alias_kind":"pith_short_12","alias_value":"J3XDWV47VDAC","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"J3XDWV47VDACK3EL","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"J3XDWV47","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:d828a70dc78d0fe27174bed5875129bb238042ad2394eba223447afdb084b131","target":"graph","created_at":"2026-05-18T03:15:07Z","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 atmospheres of cool main-sequence stars are structured by convective flows from the convective envelope that penetrate the optically thin layers and lead to structuring of the stellar atmospheres analogous to solar granulation. The flows have considerable influence on the 3D structure of temperature and pressure and affect the profiles of spectral lines formed in the photosphere. For the set of six 3D radiative (M)HD simulations of cool main-sequence stars described in the first paper of this series, we analyse the near-surface layers. We aim at describing the properties of granulation of ","authors_text":"Ansgar Reiners, Benjamin Beeck, Manfred Sch\\\"ussler, Robert H. Cameron","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-08-22T14:14:55Z","title":"Three-dimensional simulations of near-surface convection in main-sequence stars - II. Properties of granulation and spectral lines"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.4873","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:c163926ddf60573b8b52d7d4bdf55a549b2750d068d39f8d98039d8f7732ca17","target":"record","created_at":"2026-05-18T03:15:07Z","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":"c2e4102da4506020e1e27cf9503a530741d53d5507e3b514a9a1cce2f36620fc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-08-22T14:14:55Z","title_canon_sha256":"769f285392e20816071da689f00b175eaf1ceb8599437559229c6026ef9025d1"},"schema_version":"1.0","source":{"id":"1308.4873","kind":"arxiv","version":1}},"canonical_sha256":"4eee3b579fa8c0256c8b00a3c76f25089bd9732db07bf9a705e2438487b94cb1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4eee3b579fa8c0256c8b00a3c76f25089bd9732db07bf9a705e2438487b94cb1","first_computed_at":"2026-05-18T03:15:07.421243Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:15:07.421243Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nFMJAiqINgxBxr2Kyl8CwedKeqf6YD89X15n40jBh4QEpI1WUduF8o1k5tolcpM5B+7FBpqZCFuB80jUGLvaCA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:15:07.422200Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.4873","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c163926ddf60573b8b52d7d4bdf55a549b2750d068d39f8d98039d8f7732ca17","sha256:d828a70dc78d0fe27174bed5875129bb238042ad2394eba223447afdb084b131"],"state_sha256":"c7e082e60b724b955c2b45af647c72424214ce9df4e3708a53c94122917d97df"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JdfY/ia0zj9wiuyfHJKIWGFQV9wDEMextNwgiBhaPa+Z1pcIDpMGHRq1TU3xugQGWDFqrDNdn7NI6CLM+14gBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T17:20:02.061459Z","bundle_sha256":"463ef6ea9cc140cba9842479143332ec7166abacaf93e5e9679bad95b74ee2d7"}}