{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:R2NVSPFVQDBVLH4UEH6OBMEWD6","short_pith_number":"pith:R2NVSPFV","canonical_record":{"source":{"id":"0904.1575","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-04-09T17:49:41Z","cross_cats_sorted":[],"title_canon_sha256":"0a484429d009a091b780872809f040394b4b91120cece2a8b33b1b65d407929c","abstract_canon_sha256":"c2fdf656a2d5183bb27396af605d560457809607f9441fe4ac13ee17ddd60001"},"schema_version":"1.0"},"canonical_sha256":"8e9b593cb580c3559f9421fce0b0961fab070146a374ab45e0df3162aea98c61","source":{"kind":"arxiv","id":"0904.1575","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.1575","created_at":"2026-05-18T04:29:43Z"},{"alias_kind":"arxiv_version","alias_value":"0904.1575v1","created_at":"2026-05-18T04:29:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.1575","created_at":"2026-05-18T04:29:43Z"},{"alias_kind":"pith_short_12","alias_value":"R2NVSPFVQDBV","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"R2NVSPFVQDBVLH4U","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"R2NVSPFV","created_at":"2026-05-18T12:26:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:R2NVSPFVQDBVLH4UEH6OBMEWD6","target":"record","payload":{"canonical_record":{"source":{"id":"0904.1575","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-04-09T17:49:41Z","cross_cats_sorted":[],"title_canon_sha256":"0a484429d009a091b780872809f040394b4b91120cece2a8b33b1b65d407929c","abstract_canon_sha256":"c2fdf656a2d5183bb27396af605d560457809607f9441fe4ac13ee17ddd60001"},"schema_version":"1.0"},"canonical_sha256":"8e9b593cb580c3559f9421fce0b0961fab070146a374ab45e0df3162aea98c61","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:29:43.650854Z","signature_b64":"j9SxyMba2AcsurYlgWXnpTtd23A3zxXSIJXNwbU8MjRdsenw+Ci45XH+fBi2gQfyy/9OLFhUe4mlVoizrYL2AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8e9b593cb580c3559f9421fce0b0961fab070146a374ab45e0df3162aea98c61","last_reissued_at":"2026-05-18T04:29:43.650180Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:29:43.650180Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0904.1575","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":"2026-05-18T04:29:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GKQvVEwQsPZonq45xuduQCACnW8/W81tQjeCLVATxTQbvs3gTWDrzAGUFjb3OwKL+3Em8Lbevzakst0oLXNQCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T00:28:13.869609Z"},"content_sha256":"3676f85def5b0fcba998f35f1c4621b9102df8721925ad17fdd90eac6c2d341b","schema_version":"1.0","event_id":"sha256:3676f85def5b0fcba998f35f1c4621b9102df8721925ad17fdd90eac6c2d341b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:R2NVSPFVQDBVLH4UEH6OBMEWD6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Subsurface Circulations within Active Regions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Bradley W. Hindman, Deborah A. Haber, Juri Toomre","submitted_at":"2009-04-09T17:49:41Z","abstract_excerpt":"Using high-resolution ring analysis (HRRA) we deduce subsurface flows within magnetic active regions and within quiet sun. With this procedure we are capable of measuring flows with a horizontal spatial resolution of 2 degrees in heliographic angle (or roughly 20 Mm). From the resulting flow fields we deduce mean inflow rates into active regions, mean circulation speeds around active regions, and probability density functions (PDFs) of properties of the flow field. These analyses indicate that active regions have a zonal velocity that exceeds that of quiet sun at the same latitude by 20 m/s, y"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.1575","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":"2026-05-18T04:29:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kW2LmEushL+nsbKx/mZGn8GsdU5xQOksUYs1HQdc9wZ7hzuDMeBdlBXY6fmiABrWac8p3K3TvOqmheQQ4zOsDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T00:28:13.869962Z"},"content_sha256":"7ac2453be1e1462ab1f3586dc133b611853bc12d4c547050a939fe5e2b05d8ec","schema_version":"1.0","event_id":"sha256:7ac2453be1e1462ab1f3586dc133b611853bc12d4c547050a939fe5e2b05d8ec"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/R2NVSPFVQDBVLH4UEH6OBMEWD6/bundle.json","state_url":"https://pith.science/pith/R2NVSPFVQDBVLH4UEH6OBMEWD6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/R2NVSPFVQDBVLH4UEH6OBMEWD6/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":"2026-05-28T00:28:13Z","links":{"resolver":"https://pith.science/pith/R2NVSPFVQDBVLH4UEH6OBMEWD6","bundle":"https://pith.science/pith/R2NVSPFVQDBVLH4UEH6OBMEWD6/bundle.json","state":"https://pith.science/pith/R2NVSPFVQDBVLH4UEH6OBMEWD6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/R2NVSPFVQDBVLH4UEH6OBMEWD6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:R2NVSPFVQDBVLH4UEH6OBMEWD6","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":"c2fdf656a2d5183bb27396af605d560457809607f9441fe4ac13ee17ddd60001","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-04-09T17:49:41Z","title_canon_sha256":"0a484429d009a091b780872809f040394b4b91120cece2a8b33b1b65d407929c"},"schema_version":"1.0","source":{"id":"0904.1575","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.1575","created_at":"2026-05-18T04:29:43Z"},{"alias_kind":"arxiv_version","alias_value":"0904.1575v1","created_at":"2026-05-18T04:29:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.1575","created_at":"2026-05-18T04:29:43Z"},{"alias_kind":"pith_short_12","alias_value":"R2NVSPFVQDBV","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"R2NVSPFVQDBVLH4U","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"R2NVSPFV","created_at":"2026-05-18T12:26:01Z"}],"graph_snapshots":[{"event_id":"sha256:7ac2453be1e1462ab1f3586dc133b611853bc12d4c547050a939fe5e2b05d8ec","target":"graph","created_at":"2026-05-18T04:29:43Z","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":"Using high-resolution ring analysis (HRRA) we deduce subsurface flows within magnetic active regions and within quiet sun. With this procedure we are capable of measuring flows with a horizontal spatial resolution of 2 degrees in heliographic angle (or roughly 20 Mm). From the resulting flow fields we deduce mean inflow rates into active regions, mean circulation speeds around active regions, and probability density functions (PDFs) of properties of the flow field. These analyses indicate that active regions have a zonal velocity that exceeds that of quiet sun at the same latitude by 20 m/s, y","authors_text":"Bradley W. Hindman, Deborah A. Haber, Juri Toomre","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-04-09T17:49:41Z","title":"Subsurface Circulations within Active Regions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.1575","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":"sha256:3676f85def5b0fcba998f35f1c4621b9102df8721925ad17fdd90eac6c2d341b","target":"record","created_at":"2026-05-18T04:29:43Z","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":"c2fdf656a2d5183bb27396af605d560457809607f9441fe4ac13ee17ddd60001","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-04-09T17:49:41Z","title_canon_sha256":"0a484429d009a091b780872809f040394b4b91120cece2a8b33b1b65d407929c"},"schema_version":"1.0","source":{"id":"0904.1575","kind":"arxiv","version":1}},"canonical_sha256":"8e9b593cb580c3559f9421fce0b0961fab070146a374ab45e0df3162aea98c61","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8e9b593cb580c3559f9421fce0b0961fab070146a374ab45e0df3162aea98c61","first_computed_at":"2026-05-18T04:29:43.650180Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:29:43.650180Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"j9SxyMba2AcsurYlgWXnpTtd23A3zxXSIJXNwbU8MjRdsenw+Ci45XH+fBi2gQfyy/9OLFhUe4mlVoizrYL2AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:29:43.650854Z","signed_message":"canonical_sha256_bytes"},"source_id":"0904.1575","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3676f85def5b0fcba998f35f1c4621b9102df8721925ad17fdd90eac6c2d341b","sha256:7ac2453be1e1462ab1f3586dc133b611853bc12d4c547050a939fe5e2b05d8ec"],"state_sha256":"68387b9ccc2967cd6057eb3b8a525af97a48258bf2e0e0a7fc6cfe129fa2f90b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a7/2Az1AvDmb/3mRZtxbfria7rhxPXBTsHA6/bVqARm0dinLuDPMgKMWGs8r3mIlvEvzKpL6EmNePkC8NFM0CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T00:28:13.871954Z","bundle_sha256":"dc40e85b640f491714b46c9cdae06b22e2d8a782276c17681c8094fa25313b89"}}